Name: EVB_RT9527GQW
Brand: Richtek

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本開發板展示 RT9527GQW，其設計為一款完全整合、低成本的單節鋰離子電池充電器，非常適合可攜式應用。RT9527GQW 透過控制演算法最佳化充電作業，該演算法包含預充電模式、快速充電模式與定電壓模式。充電電流可透過外部電阻調整。其提供寬範圍快速充電電流設定，可由 10mA 至 600mA。RT9527GQW 的 VIN 最高額定電壓為 28V，並為 AC 變壓器供電提供欠壓保護與過壓保護等保護功能。此外，內部熱回授電路可調節晶片溫度，以在所有環境溫度下最佳化充電速率。

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1. General Description

The evaluation board demonstrates the RT9527GQW to be designed for a fully integrated low cost single-cell Li-ion battery charger ideal for portable applications. The RT9527GQW optimizes the charging task by using a control algorithm, which includes pre-charge mode, fast-charge mode and constant voltage mode. The charging current is adjustable via an external resistor. It provides a wide fast-charge current setting from 10mA up to 600mA. The RT9527GQW features 28V maximum rating voltage for VIN and provides protection functions including undervoltage protection and overvoltage protection for the AC adapter supply. Besides, the internal thermal feedback circuitry regulates the die temperature to optimize the charge rate for all ambient temperatures.

2. Performance Specifications

The performance specificiaitons of RT9527GQW evaluation board 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 RT9527GQW 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 style="border:solid #009EB8 1.0pt;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Specification </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Test Conditions </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Min </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Typ </td> <td style="border:solid #009EB8 1.0pt;border-left:none;background:#009EB8; padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Max </td> <td style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> VIN Operating Range </td> <td style="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 style="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 style="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 style="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 style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> VIN Undervoltage Lockout Threshold </td> <td style="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"> VIN = 0V to 5V </td> <td style="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 style="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 style="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 style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> VIN Undervoltage Lockout Hysteresis </td> <td style="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"> VIN = 5V to 0V </td> <td style="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 style="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 style="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 style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Battery Voltage Regulation </td> <td style="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 </td> <td style="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"> 4.158 </td> <td style="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 style="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"> 4.242 </td> <td style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Re-Charge Threshold </td> <td style="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 style="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"> 60 </td> <td style="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 style="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"> 140 </td> <td style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> VIN Charging Setting Range </td> <td style="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 style="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 style="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 style="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"> 600 </td> <td style="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:1.0cm"> <td rowspan="2" style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> Fast-Charge Current Factor </td> <td style="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"> ICHG_F1 = KCHG_F1 / RISET, ICHG_F1 = 10mA to 50mA </td> <td style="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"> 510 </td> <td style="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"> 600 </td> <td style="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"> 690 </td> <td style="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"> AΩ </td> </tr> <tr style="height:1.0cm"> <td style="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"> ICHG_F2 = KCHG_F2 / RISET, ICHG_F2 = 50mA to 600mA </td> <td style="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"> 570 </td> <td style="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"> 600 </td> <td style="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"> 630 </td> <td style="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"> AΩ </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Pre-Charge Current Factor </td> <td style="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"> ICHG_P = KCHG_P / RISET </td> <td style="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"> 30 </td> <td style="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"> 60 </td> <td style="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 style="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"> AΩ </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> BAT Pre-Charge Threshold </td> <td style="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 falling </td> <td style="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"> 2.7 </td> <td style="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"> 2.8 </td> <td style="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"> 2.9 </td> <td style="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 style="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 style="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 style="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 style="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 style="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 style="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:1.0cm"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:1.0cm"> Termination Current Ratio </td> <td style="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 > VPREC, ICHG < ITERMI, <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image001_en.png"><img width="42" height="20" id="圖片 3" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image001_en.png" alt="Technical Document Image Preview" /></a>= L to H </td> <td style="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"> 5 </td> <td style="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 style="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"> 15 </td> <td style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Overvoltage Protection </td> <td style="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 style="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"> 6.2 </td> <td style="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 style="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"> 6.8 </td> <td style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Overvoltage Protect Hysteresis </td> <td style="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 style="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 style="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"> 0.2 </td> <td style="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 style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> ISET Pin Short Protection </td> <td style="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 style="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"> 375 </td> <td style="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 style="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"> 625 </td> <td style="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"> Ω </td> </tr> <tr style="height:17.0pt"> <td style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Thermal Regulation </td> <td style="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 style="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 style="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 style="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 style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Pre-Charge Fault Time </td> <td style="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 style="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 style="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 style="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 style="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 style="border:solid #009EB8 1.0pt;border-top:none;padding:0cm 5.4pt 0cm 5.4pt; height:17.0pt"> Fast-Charge Fault Time </td> <td style="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 style="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 style="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 style="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 style="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>RT9527GQW evaluation board </li> <li>DC power supply </li> <li>Electronic load </li> <li>Multimeter </li> <li>Oscilloscope </li> </ul>

4. Quick Test 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.

5. Equipment setup and the test procedures are stated below:

1) Set power supply#1 voltage = 4V and current = 2A and connect it to VBAT pin through meter and GND pin on the EVB. 2) Connect an e-load with power supply#1 in parallel and sink 1A in CC mode. 3) Set power supply#2 voltage = 5V and current = 1A and connect it to VIN and GND pins on the EVB. 4) Turn on power supply#1 and the electronic load. 5) Turn on power supply#2. 6) Check whether LED1 and LED2 light or not. 7) Use a multimeter to check whether IBAT equals to KCHG_Fx / RISET or not.

6. Test Environment Diagram

7. Detailed Description of Hardware

<h3>Headers Description and Placement</h3> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image003_en.png"><img width="491" height="333" id="圖片 19" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image003_en.png" alt="一張含有文字, 螢幕擷取畫面, 電子工程, 電子產品的圖片自動產生的描述" /></a> Carefully inspect all the components used in the EVB according to the following Bill of Materials table, and then make sure all the components are undamaged and correctly installed. 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>.

8. 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"> VIN </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"> VBAT </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 output for battery. </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"> 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"> Battery temperature sense 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"> TIMER </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"> 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 setting. </td> </tr> </table>

9. 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="152" style="width:113.75pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Part Number </td> <td width="97" style="width:72.8pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Value </td> <td width="127" style="width:95.15pt;border:solid #009EB8 1.0pt;border-left: none;background:#009EB8;padding:0cm 0cm 0cm 0cm;height:17.0pt"> Description </td> <td width="99" style="width:74.2pt;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="152" style="width:113.75pt;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"> RT9527GQW </td> <td width="97" style="width:72.8pt;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"> RT9527GQW </td> <td width="127" style="width:95.15pt;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="99" style="width:74.2pt;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"> WDFN-8L 2x2 </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"> C1, C3, 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"> 3 </td> <td width="152" style="width:113.75pt;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="97" style="width:72.8pt;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="127" style="width:95.15pt;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="99" style="width:74.2pt;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: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"> C2, 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:17.0pt"> 2 </td> <td width="152" style="width:113.75pt;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"> -- </td> <td width="97" style="width:72.8pt;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"> NC </td> <td width="127" style="width:95.15pt;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"> -- </td> <td width="99" style="width:74.2pt;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"> -- </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"> -- </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"> C6 </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="152" style="width:113.75pt;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"> 0603B102K500CT </td> <td width="97" style="width:72.8pt;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"> 1nF </td> <td width="127" style="width:95.15pt;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, 50V/X7R </td> <td width="99" style="width:74.2pt;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"> R1, R2 </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="152" style="width:113.75pt;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"> WR06X1002FTL </td> <td width="97" style="width:72.8pt;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"> 10k </td> <td width="127" style="width:95.15pt;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="99" style="width:74.2pt;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"> R3 </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="152" style="width:113.75pt;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"> WR06X1001FTL </td> <td width="97" style="width:72.8pt;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"> 1k </td> <td width="127" style="width:95.15pt;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="99" style="width:74.2pt;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"> 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"> 1 </td> <td width="152" style="width:113.75pt;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"> RTT035761FTP </td> <td width="97" style="width:72.8pt;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"> 5.76k </td> <td width="127" style="width:95.15pt;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="99" style="width:74.2pt;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"> RALEC </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="152" style="width:113.75pt;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"> RC0603FR-075K1L </td> <td width="97" style="width:72.8pt;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"> 5.1k </td> <td width="127" style="width:95.15pt;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="99" style="width:74.2pt;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"> YAGEO </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"> LED1, LED2 </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="152" style="width:113.75pt;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"> LNL-302RD000A1 </td> <td width="97" style="width:72.8pt;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"> RED </td> <td width="127" style="width:95.15pt;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"> LED </td> <td width="99" style="width:74.2pt;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"> DIP </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"> 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"> RT1 </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="152" style="width:113.75pt;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"> NCP21XH103F03RC </td> <td width="97" style="width:72.8pt;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="127" style="width:95.15pt;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"> Chip Resistor, NTC </td> <td width="99" style="width:74.2pt;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"> 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:17.0pt"> MURATA </td> </tr> </table> </div>

10. Typical Applications

<h3>EVB Schematic Diagram</h3> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image004_en.png"><img border="0" width="684" height="477" id="Picture 5" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image004_en.png" alt="Technical Document Image Preview" /></a>

11. Measurement Result

<table class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0" width="680" style="border-collapse:collapse;border:none"> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;background: #009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charge Current (ICHG = 600mA) vs. Temperature </td> <td width="340" style="width:9.0cm;border:solid #009EB8 1.0pt;border-left:none; background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charge Current (ICHG = 10mA) vs. Temperature </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image005_en.jpg"><img border="0" width="326" height="254" id="圖片 8" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image005_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="340" style="width:9.0cm;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 class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image006_en.jpg"><img border="0" width="326" height="262" id="圖片 14" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image006_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Pre-charge Current vs. Battery Voltage </td> <td width="340" style="width:9.0cm;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"> Fast-charge Current vs. Battery Voltage </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image007_en.jpg"><img border="0" width="326" height="260" id="圖片 21" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image007_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="340" style="width:9.0cm;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 class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image008_en.jpg"><img border="0" width="326" height="256" id="圖片 22" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image008_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Battery Regulation Voltage v.s. Temperature </td> <td width="340" style="width:9.0cm;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"> OVP Threshold Voltage vs. Temperature </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image009_en.jpg"><img border="0" width="326" height="243" id="圖片 20" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image009_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="340" style="width:9.0cm;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 class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image010_en.jpg"><img border="0" width="326" height="249" id="圖片 23" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image010_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="680" colspan="2" style="width:510.2pt;border:solid #009EB8 1.0pt; border-top:none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charge Current vs. RISET </td> </tr> <tr style="height:17.0pt"> <td width="680" colspan="2" style="width:510.2pt;border:solid #009EB8 1.0pt; border-top:none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image011_en.png"><img border="0" width="450" height="227" id="圖片 26" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image011_en.png" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> Charge On/Off Control from VIN </td> <td width="340" style="width:9.0cm;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"> VIN Overvoltage Protection </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image012_en.jpg"><img border="0" width="326" height="221" id="圖片 28" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image012_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="340" style="width:9.0cm;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 class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image013_en.jpg"><img border="0" width="326" height="222" id="圖片 25" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image013_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;background:#009EB8;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> TS Inserted/Removed </td> <td width="340" style="width:9.0cm;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"> VIN Hot-Plug with Battery and NTC </td> </tr> <tr style="height:17.0pt"> <td width="340" style="width:255.05pt;border:solid #009EB8 1.0pt;border-top: none;padding:0cm 5.4pt 0cm 5.4pt;height:17.0pt"> <a class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image014_en.jpg"><img border="0" width="326" height="223" id="圖片 27" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image014_en.jpg" alt="Technical Document Image Preview" /></a> </td> <td width="340" style="width:9.0cm;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 class="fancybox" href="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image015_en.jpg"><img border="0" width="326" height="223" id="圖片 24" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image015_en.jpg" alt="Technical Document Image Preview" /></a> </td> </tr> </table>

12. Evaluation Board Layout

The layout of RT9527GQW 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_rt9527gqw/html-images/image016_en.jpg"><img border="0" width="492" height="331" id="圖片 1" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image016_en.jpg" alt="一張含有螢幕擷取畫面, 圓形, 電子產品, 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_rt9527gqw/html-images/image017_en.jpg"><img border="0" width="491" height="333" id="圖片 9" src="/content/dam/richtek-eds/resources/evaluation-boards/evb_rt9527gqw/html-images/image017_en.jpg" alt="一張含有螢幕擷取畫面, 圓形, 文字, Rectangle 的圖片自動產生的描述" /></a> Figure 2. Bottom View (2nd layer)

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