Name: EVB_RT9525GQW
Brand: Richtek

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本开发板展示 RT9525GQW 的应用设计，该产品为集成 Auto Power Path Management（APPM）的单节锂离子电池充电器，无需外接 MOSFET，适用于便携式应用。RT9525GQW 采用包含预充电模式、快速充电模式及恒压充电模式的控制算法，以优化充电流程。当充电电流降至快速充电电流（ICHG_FAST）的 20% 时，系统将在恒压模式下自动终止充电。充电电流可通过外部电阻设定。RT9525GQW 同时提供 VIN 输入欠压保护及过压保护，此外，内置热反馈控制电路可调节芯片温度，以在不同环境温度下优化充电速率。

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1. General Description

The evaluation board demonstrates the RT9525GQW to be designed for an integrated single cell Li-ion battery charger with Auto Power Path Management(APPM). No external MOSFETs are required making it suitable for portable applications. The RT9525GQW optimizes the charging tasks by using a control algorithm including pre-charge mode, fast-charge mode and constant-voltage mode. It terminates the charging task in constant voltage mode when the charging current reduces to the termination current of 20% ICHG_FAST. The charge current is programmable with an external resister. The RT9525GQW also provides undervoltage protection and overvoltage protection for the VIN supply. In addition, the internal thermal feedback circuitry regulates the die temperature to optimize the charge rate for all ambient temperatures.

2. Performance Specifications

The performance specifications of the RT9525GQW are listed in Table 1. The test conditions are VIN = 5V, VBAT = 4V and TA = 25°C, unless otherwise specified. Table 1. Performance Specifications of RT9525GQW Evaluation Board <div> <table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Item </td> <td width="245" style="width:183.75pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Test Conditions </td> <td width="55" style="width:41.15pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Min </td> <td width="55" style="width:41.15pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Typ </td> <td width="55" style="width:41.2pt;border:solid #009EB8 1.0pt;border-left:none; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Max </td> <td width="43" style="width:32.4pt;border:solid #009EB8 1.0pt;border-left:none; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Unit </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VIN Operating Range </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 4.2 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> -- </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 6 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> V </td> </tr> <tr style="height:1.0cm"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> VIN Undervoltage Lockout Threshold </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> 3.1 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> 3.3 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> 3.5 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> V </td> </tr> <tr style="height:1.0cm"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> VIN Undervoltage Lockout Hysteresis </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> -- </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> 240 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> -- </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> mV </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Battery Regulation Voltage </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 0°C to 85°C, ILOAD = 20mA </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 4.16 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 4.2 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 4.23 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> V </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> System Regulation Voltage </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VIN = 6V </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 5.3 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 5.5 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 5.7 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> V </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> APPM Regulation Voltage </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> EN2 = L ,EN1 = H </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 4.2 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 4.3 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 4.4 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> V </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> DPM Regulation Voltage </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> EN2 = L </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 4.35 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 4.5 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 4.63 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> V </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Re-Charge Threshold </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Battery Regulation - Recharge-Level </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 120 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 200 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 280 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> mV </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VIN Charge Setting Range </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 100 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> -- </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 1200 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> mA </td> </tr> <tr style="height:17.0pt"> <td width="227" rowspan="3" style="width:170.55pt;border:solid #009EB8 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VIN Current Limit </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> EN2 = H, EN1 = L (1.5A mode) </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 1.2 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 1.5 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 1.8 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> A </td> </tr> <tr style="height:17.0pt"> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> EN2 = L, EN1 = H (500mA mode) </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 450 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 475 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 500 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> mA </td> </tr> <tr style="height:17.0pt"> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> EN2 = L, EN1 = L (100mA mode) </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 80 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 90 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 100 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> mA </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> BAT Pre-Charge Threshold </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> BAT falling </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 2.75 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 2.85 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 2.95 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> V </td> </tr> <tr style="height:1.0cm"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> BAT Pre-Charge Threshold Hysteresis </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> -- </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> 200 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> -- </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> mV </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Pre-Charge Current </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VBAT = 2V </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 5 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 10 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 15 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> % </td> </tr> <tr style="height:1.0cm"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> Termination Current Ratio to Fast Charge </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> 10 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> 20 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> 30 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> % </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> OVP SET Voltage </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> VIN rising </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 6.25 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 6.5 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 6.75 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> V </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> OVP Hysteresis </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> -- </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 100 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> -- </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> mV </td> </tr> <tr style="height:1.0cm"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> Output Short Circuit Detection Threshold </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> VBAT - VSYS </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> -- </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> 300 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> -- </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> mV </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Thermal Regulation </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> -- </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 125 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> -- </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> °C </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Thermal Shutdown Temperature </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> -- </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 155 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> -- </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> °C </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Thermal Shutdown Hysteresis </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> -- </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 20 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> -- </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> °C </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Pre-Charge Fault Time </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> CTIMER = 1μF </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 1440 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 1800 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 2160 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> s </td> </tr> <tr style="height:17.0pt"> <td width="227" style="width:170.55pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Fast-Charge Fault Time </td> <td width="245" style="width:183.75pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> CTIMER = 1μF </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 11520 </td> <td width="55" style="width:41.15pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> 14400 </td> <td width="55" style="width:41.2pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> 17280 </td> <td width="43" style="width:32.4pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> s </td> </tr> </table> </div>

3. Power-up Procedure

<h3>Required Equipment </h3> <ul> <li>RT9525GQW evaluation board </li> <li>DC power supply </li> <li>Electronic load </li> <li>Multimeter </li> <li>Oscilloscope </li> </ul>

4. Quick Start Procedures

Inspect all the components on the EVB and make sure they are undamaged. Do not turn on power supplies until they are connetced well on the EVB. Equipment setup and the test procedures are stated below: 1) Put jumper connectors on JP1 and JP2. 2) Put jumper connectors on JP3, JP4, JP6 and JP8 at L side. 3) Put jumper connectors on JP7 at H side. 4) Adjust RV2 to 1kΩ. 5) Set power supply #1 voltage = 4V and current = 2A and connect it to BAT through multimeter and GND pins on the EVB. 6) Connect an e-load with power supply #1 in parallel and sink 1A in CC mode. 7) Set power supply #2 voltage = 5V and current = 1A and connect it to IN and GND pins on the EVB. 8) Turn on power supply #1 and the electronic load. 9) Turn on power supply #2. 10) Check whether D1 and D2 light or not. 11) Use a multimeter to check whether IBAT equals to VISET / RISET x 300 or not. <h3>Test Environment Diagram</h3> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image001_en.png"><img width="466" height="233" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image001_en.png" alt="Technical Document Image Preview" /></a>

5. Detailed Description of the Evaluation Board

<h3>Headers Description and Placement</h3> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image002_en.jpg"><img width="491" height="352" id="圖片 3" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image002_en.jpg" alt="一張含有電路, 電子工程, 電子產品, 文字的圖片自動產生的描述" /></a> Inspect carefully all the components used on the EVB according to the following bill of material and make sure all the components are undamaged and installed correctly. If there is any missing or damaged component, which may occur during transportation, please contact our distributors or e-mail us at <a href="mailto:evb_service@richtek.com" class="link">evb_service@richtek.com</a>.

6. Test Points

Test points are provided on the EVB and their pin names are listed in the table as shown below. <table class="MsoTableLightListAccent2" border="1" cellspacing="0" cellpadding="0" width="680" style="width:510.2pt;margin-left:1.85pt;border-collapse:collapse; border:none"> <thead> <tr style="height:1.0cm"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> Test Point/ Pin Name </td> <td width="85%" style="width:85.36%;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:1.0cm"> Pin Function </td> </tr> </thead> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> IN </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Supply voltage input. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> OUT </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> System connection pin. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> BAT </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Battery connection pin. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> GND </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Ground. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> ISET </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charge current set input. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> TMR </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Safe charge timer setting. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> TS </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Thermistor monitor input. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> EN1 </td> <td width="85%" rowspan="2" style="width:85.36%;border-top:none;border-left: none;border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Input current limit configuration setting. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> EN2 </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> SYSOFF </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> System disconnection pin. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> nCE </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charge enable. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> nCHG </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charger status output. </td> </tr> <tr style="height:17.0pt"> <td width="14%" style="width:14.64%;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> nPGOOD </td> <td width="85%" style="width:85.36%;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Power good status output. </td> </tr> </table>

7. Bill of Material

<div> <table class="TableNormal" border="1" cellspacing="0" cellpadding="0" width="680" style="border-collapse:collapse;border:none"> <thead> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Reference </td> <td width="42" style="width:31.85pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Count </td> <td width="143" style="width:107.45pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Part Number </td> <td width="102" style="width:76.3pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Value </td> <td width="126" style="width:94.45pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Description </td> <td width="104" style="width:77.7pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Package </td> <td width="93" style="width:69.5pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Manufacturer </td> </tr> </thead> <tr style="height:1.0cm"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:1.0cm"> U1 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> RT9525GQW </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> RT9525GQW </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> Single Cell Li-Ion Battery Charger </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> WQFN-16L 4x4 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> RICHTEK </td> </tr> <tr style="height:1.0cm"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:1.0cm"> C2 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> TMK316AB7106KL-T </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 10µF </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> Ceramic Capacitor, 25V/X7R </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1206 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> TAIYO YUDEN </td> </tr> <tr style="height:1.0cm"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:1.0cm"> C4 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0805X225K160CT </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 2.2µF </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> Ceramic Capacitor, 16V/X5R </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0805 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> WALSIN </td> </tr> <tr style="height:1.0cm"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:1.0cm"> C5 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0805B105K250CT </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1µF </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> Ceramic Capacitor, 25V/X7R </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0805 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> WALSIN </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> D1 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 1 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> LNL-191SUR </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> RED </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> LED </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 0603 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> LighTop </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> D2 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 1 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> LNL-190UW-4H </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> WHITE </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> LED </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 0603 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> LighTop </td> </tr> <tr style="height:1.0cm"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:1.0cm"> R2, R4 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 2 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> WR06X1501FTL </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1.5k </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> Chip Resistor, 1/10W, 1% </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0603 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> WALSIN </td> </tr> <tr style="height:1.0cm"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:1.0cm"> R5 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0603X105K250CT </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 1µF </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> Ceramic Capacitor, 25V/X5R </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0603 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> WALSIN </td> </tr> <tr style="height:1.0cm"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:1.0cm"> R6, R8 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 2 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> WR06X000 PTL </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0 </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> Chip Resistor, 1/10W, 1% </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:1.0cm"> 0603 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:1.0cm"> WALSIN </td> </tr> <tr style="height:39.7pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:39.7pt"> R7, R10, R11, R13, R14 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:39.7pt"> 5 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:39.7pt"> WR06X1002FTL </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:39.7pt"> 10k </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:39.7pt"> Chip Resistor, 1/10W, 1% </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:39.7pt"> 0603 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:39.7pt"> WALSIN </td> </tr> <tr style="height:17.0pt"> <td width="71" style="width:52.95pt;border:solid #009EB8 1.0pt;border-top:none; padding:0cm 0cm 0cm 0cm;height:17.0pt"> RV2 </td> <td width="42" style="width:31.85pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 1 </td> <td width="143" style="width:107.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 3296W103 </td> <td width="102" style="width:76.3pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 10k </td> <td width="126" style="width:94.45pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> Varistor </td> <td width="104" style="width:77.7pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 0cm 0cm 0cm;height:17.0pt"> 3296 </td> <td width="93" style="width:69.5pt;border-top:none;border-left:none;border-bottom: solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt;padding:0cm 0cm 0cm 0cm; height:17.0pt"> BOURNS </td> </tr> </table> </div>

8. Typical Applications

<h3>EVB Schematic Diagram</h3> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image003_en.png"><img border="0" width="684" height="586" id="Picture 6" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image003_en.png" alt="Technical Document Image Preview" /></a>

9. Measurement Result

<table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" style="margin-left:26.35pt;border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <a name="_Toc273981939">Battery Regulation Voltage vs. Temperature</a> </td> <td width="307" style="width:230.35pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Output Regulation Voltage vs. Temperature </td> </tr> <tr style="height:166.0pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:166.0pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image004_en.jpg"><img border="0" width="231" height="189" id="圖片 6" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image004_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:166.0pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image005_en.jpg"><img border="0" width="293" height="226" id="圖片 19" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image005_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charger Current vs. Temperature </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charging Current vs. RISETA </td> </tr> <tr style="height:168.2pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image006_en.jpg"><img border="0" width="292" height="217" id="圖片 17" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image006_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image007_en.jpg"><img border="0" width="293" height="226" id="圖片 20" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image007_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="614" colspan="2" style="width:460.55pt;border:solid #009EB8 1.0pt; border-top:none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charging Current vs. Battery Voltage </td> </tr> <tr style="height:168.2pt"> <td width="614" colspan="2" style="width:460.55pt;border:solid #009EB8 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image008_en.jpg"><img border="0" width="310" height="240" id="圖片 21" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image008_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charger Detect Sequence </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charger /CHG Status after Safety Timer Expired </td> </tr> <tr style="height:168.2pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image009_en.jpg"><img border="0" width="292" height="200" id="圖片 22" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image009_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image010_en.jpg"><img border="0" width="293" height="201" id="圖片 23" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image010_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Battery Voltage vs. Charging Time </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Battery Current vs. Charging Time </td> </tr> <tr style="height:168.2pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image011_en.jpg"><img border="0" width="293" height="227" id="圖片 24" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image011_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image012_en.jpg"><img border="0" width="293" height="228" id="圖片 25" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image012_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> SYSOFF On/Off with Input Power </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> SYSOFF On/Off without Input Power </td> </tr> <tr style="height:168.2pt"> <td width="307" style="width:230.2pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image013_en.jpg"><img border="0" width="292" height="201" id="圖片 26" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image013_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="307" style="width:230.35pt;border-top:none;border-left:none; border-bottom:solid #009EB8 1.0pt;border-right:solid #009EB8 1.0pt; padding:0cm 5.4pt 0cm 5.4pt;height:168.2pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image014_en.jpg"><img border="0" width="293" height="200" id="圖片 27" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image014_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> </table>

10. Layout of the Evaluation Board

The layout of RT9525GQW evaluation board is shown in Figure 1 and Figure 2. It is a two-layer PCB with 1 oz. Cu coated on both top and bottom sides and the PCB size is 70mm x 50mm. <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image015_en.jpg"><img border="0" width="491" height="352" id="圖片 1" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image015_en.jpg" alt="一張含有電路, 螢幕擷取畫面, 電子工程, 文字的圖片自動產生的描述" /></a> Figure 1. Top View (1st layer) <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image016_en.jpg"><img border="0" width="491" height="352" id="圖片 15" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9525gqw/html-images/image016_en.jpg" alt="一張含有螢幕擷取畫面, 圓形, 圖表, 文字的圖片自動產生的描述" /></a> Figure 2. Bottom View (2nd layer)

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