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buttonContactUs
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Product Spec Banner
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RT9455 是適合可擕式應用的開關模式單節鋰離子/聚合物電池充電器，集成了同步 PWM 控制器、功率開關、輸入電流檢測、高精度電壓調節和充電終止電路，支援 USB On-The-Go(OTG)應用。它以經過優化的控制策略進行不同模式下的充電速度調節，其模式包括預充模式、快充模式和恒壓充電模式，所有關鍵的充電參數均可經過 I<sup>2</sup>C 介面進行程式設計。充電結束以後的電池電壓下將到預設的閾值以下時，RT9455 會重啟充電流程以彌補其電能損失。當外部電源移除以後，RT9455 自動進入睡眠模式以降低電池消耗。它還具有欠壓保護、過壓保護、溫度調節和反向漏電保護等功能。其封裝為 WL-CSP-16B 1.7x1.77(BSC)。
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<div class="spec-list"><ul class="lv1"><li>支援快速啟動 </li><li>高精度電壓/電流調節 </li><li>輸入電流調節：100mA/500mA/700mA/1A </li><li>最低輸入電壓調節：4V/4.25V/4.5V </li><li>充電電壓調節精度：±1%(0~85°C) </li><li>充電電流調節精度：±5% </li><li>內建輸入電流檢測和限制 </li><li>集成功率 MOSFET 開關，支援高達 1.55A 充電電流 </li><li>集成充電電流檢測電阻 </li><li>1.5MHz 同步PWM 控制器，責任週期可達 95% </li><li>反向漏電保護，預防電池漏電 </li><li>溫度調整與保護功能 </li><li>過溫保護 </li><li>輸入過壓保護 </li><li>I<sup>2</sup>C 通訊有插斷要求輸出 </li><li>自動完成充電過程 </li><li>符合 RoHS 規範，不含鹵素 </li></ul></div>
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orderingDetailSection
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technicalDocumentationSection
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<div class="spec-list"><ul class="lv1"><li>行動電話 </li><li>個人資訊設備 </li><li>MP3 播放機 </li><li>可擕式儀器 </li></ul></div>
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keywordList
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i18n(support-card-item.technical-support.url)
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i18n(support-card-item.ordering.description)
i18n(support-card-item.ordering.learn-more-text)
i18n(support-card-item.ordering.url)
orderingSupportCard
i18n(support-card-item.sales.title)
i18n(support-card-item.sales.description)
i18n(support-card-item.sales.learn-more-text)
i18n(support-card-item.sales.url)
salesSupportCard
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