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Product Spec Banner
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RT9728B 是針對 USB 應用的電流限制閾值可調高側功率開關 IC，內部含有單一的 P 型 MOSFET 功率開關，具有成本低、可低壓工作等特性。其開關導通阻抗僅約 120mΩ（典型值），自身電流消耗僅約 120μA，僅需一隻外接電阻便可對其電流限制閾值在 75mA-1.8A 間進行調節，閾值設置精度可達 ±10%，在故障狀態下可輸出指示信號向系統控制器報警。它內含延遲回應設計，可避免大電流衝擊造成錯誤的操作，是 USB 電源供應系統的理想選擇，同時可以可變的電流限制特性支援各種靈活的應用設計。其封裝形式為 SOT-23-6 和 WDFN-6L 2x2。
RT9728B 電路圖
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productDetailSection
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<div class="spec-list"><ul class="lv1"><li>電流限制閾值精度：±10%@1.3A </li><li>電流限制閾值可調範圍：75mA-1.8A（典型值） </li><li>滿足 USB 埠電流限制需求 </li><li>工作電壓範圍：2.5V-5.5V </li><li>輸入 - 輸出反向保護 </li><li>內建軟啟動 </li><li>120mΩ MOSFET 開關 </li><li>120μA 電流消耗 </li><li>符合 IEC61000-4-2（包含外接電容）的 15kV ESD 保護 </li><li>Nemko 認證編號：IEC62368-1 </li><li>符合 RoHS 規範，不含鹵素 </li></ul></div>
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orderingDetailSection
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orderingInformationSection
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RT9728B 訂購資訊
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productSection
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RT9728B
technicalDocumentMultipleTable
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RT9728B
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designToolSection
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<div class="spec-list"><ul class="lv1"><li>USB 匯流排/自供電集線器 </li><li>USB 外設埠 </li><li>ACPI 電源分配 </li><li>電池供電裝置 </li><li>數據卡，機上盒 </li></ul></div>
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keywordList
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