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Product Spec Banner
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RT9478 是一款 4 开关双向升降压 Narrow Voltage DC (NVDC) 充电控制器，设计用于从宽范围 DC 电源为 2 至 4 串电池充电，这些电源包括 USB-C Power Delivery (PD) 电源、传统 AC-DC 充电器转接器与行动电源。它亦符合 Intel IMVP 9.2 功能。此元件的 SMBus 串列通讯介面可弹性设定各种参数，包括充电电流、充电电压、IMVP 功能，以及影响输入、电池与系统输出的过压与欠压状况保护临界值。建议接面温度范围为 −40°C 至 125°C，环境温度范围为 −40°C 至 85°C。
RT9478 电路图
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<div class="spec-list"><ul class="lv1"><li>Programmable Frequency: 720kHz/800kHz/1.2MHz </li><li>Wide Input Voltage Range from 3.8V to 24V </li><li>Average Input Current Regulation (AICR) </li><li>Minimum Input Voltage Regulation (MIVR) </li><li>Support 10mΩ and 5mΩ Sensing Resister </li><li>High Accuracy for 2% Battery Charge Current and 0.5% Voltage Regulation </li><li>Wide Battery Regulation Voltage Range from 5V to 19.2V </li><li>Support IMVP 9.2 Compliant Features </li><li>Multi-Level Input Current Limit </li><li>Vmin Active Protection (VAP) </li><li>PROCHOT Open-Drain Output </li><li>System Power Monitor (PSYS) </li><li>Support USB On-The-Go (OTG) </li><li>5V NMOSFET Gate Driver </li><li>8-Bit A/D Converter for Monitor Functions </li><li>Input, System and Battery Voltage </li><li>Input (IBUS) and Battery (IBAT) Current </li><li>System Power </li><li>Independent Comparator Input Voltage </li><li>Low Battery Quiescent Current </li><li>Programmable System Overvoltage Protection </li><li>Protection </li><li>Input, System and Battery Overvoltage Protection </li><li>System Undervoltage Protection </li><li>Input and Battery Overcurrent Protection </li><li>Over-Temperature Protection </li><li>SMBus Compliant Serial Communication </li></ul></div>
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RT9478 订购信息
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RT9478
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RT9478
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<div class="spec-list"><ul class="lv1"><li>Notebook PCs </li><li>Tablets/Chromebooks </li><li>Drones </li><li>Portable Speakers </li><li>Portable Devices and Accessories </li></ul></div>
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