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Product Spec Banner
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RT9478 是一款 4 開關雙向升降壓 Narrow Voltage DC (NVDC) 充電控制器，設計用於從寬範圍 DC 電源為 2 至 4 串電池充電，這些電源包括 USB-C Power Delivery (PD) 電源、傳統 AC-DC 充電器轉接器與行動電源。此元件的 SMBus 串列通訊介面可彈性設定各種參數，包括充電電流、充電電壓，以及影響輸入、電池與系統輸出的過壓與欠壓狀況保護臨界值。建議接面溫度範圍為 −40°C 至 125°C，環境溫度範圍為 −40°C 至 85°C。
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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 26V <ul class="lv2"> <li></li><li>Average Input Current Regulation (AICR) </li><li>Minimum Input Voltage Regulation (MIVR) </li></ul> </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 USB On-The-Go (OTG) </li><li>5V NMOSFET Gate Driver </li><li>8-Bit A/D Converter for Monitor Functions <ul class="lv2"> <li></li><li>Input, System and Battery Voltage </li><li>Input and Battery Current </li><li>System Power </li><li>Independent Comparator Input Voltage </li><li>Input (IBUS) and Battery (IBAT) Current </li></ul> </li><li>Low Battery Quiescent Current </li><li>Programmable System Overvoltage Protection </li><li>Protection <ul class="lv2"> <li></li><li>Input, System and Battery Overvoltage </li><li>System Undervoltage Protection </li><li>Input and Battery Overcurrent Protection </li><li>Over-Temperature Protection </li></ul> </li><li>SMBus Compliant Serial Communication </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Drones </li><li>Portable Speakers </li><li>Portable Devices and Accessories </li></ul></div>
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