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RT9528 是一款經由 I<sup>2</sup>C 匯流排介面進行控制的、包含自動電源路徑管理功能和 USB/AV 信號切換開關的單節鋰離子電池充電 IC。它在使用時無需使用任何外置的 MOSFET ,是一款全集成化產品。在使用中,當外部電源被移除時,RT9528 自動進入睡眠模式。借助使用優化的控制邏輯,RT9528 在完成充電任務時會自動選擇使用預充電模式、快充電模式和恒壓充電模式,它的充電結束條件、安全計時器、充電電流和 V<sub>SYS</sub> 都可經由 I<sup>2</sup>C 控制介面進行控制。RT9528 對電池包、充電器和輸入電路提供了各種保護,其中包括過流、欠壓、過壓、熱調節和熱保護。透過序列介面,充電的各種狀態和故障情況都可以被監控到。在任何可用工作溫度範圍內,充電的速率都可通過內部溫度回饋電路實現最優化的調節。</br>建議的接面溫度範圍為-40°C至125°C,而環境溫度範圍則為-40°C至85°C。
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<div class="spec-list"><ul class="lv1"><li>針對交流電源轉接器的 28V 最高耐壓設計 </li><li>自動電源路徑管理 ( APPM )功能 </li><li>支援高速 USB 操作 </li><li>USB / Audia / Video 開關 </li><li>容許負極性音訊信號通過 </li><li>I<sup>2</sup>C 介面 </li><li>為溫度檢測電路提供 3.3V 輸出 </li><li>集成功率 MOSFET </li><li>中斷狀態指示輸出 </li><li>電源正常和充電狀態指示輸出 </li><li>欠壓/過壓保護 </li><li>熱回饋優化充電速率 </li><li>28引腳 WQFN-28 封裝 </li><li>符合 RoHS 規範,不含鹵素 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Digital Cameras </li><li>PDAs and Smart Phones </li><li>Portable Instruments </li></ul></div>
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