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Product Spec Banner
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RT9728A 是一款具有成本优势的低电压单通道 P-MOSFET 高侧电源开关 IC，专为 USB 应用而设计，并具备可编程限流功能。该器件具有典型值仅 120mΩ 的低导通电阻以及 120μA 的低工作电流，可有效降低功耗。RT9728A 可通过外接电阻将电流限制阈值设定在 75mA 至 1.3A（典型值）范围内，且在所有限流设定下均可提供 ±10% 的限流精度。此外，产品提供故障标志（FLAG）输出，可向本地 USB 控制器报告异常状态。RT9728A 还集成了内置延时功能，可避免因大浪涌电流（Inrush Current）而导致的误动作。因此，RT9728A 是 USB 电源供电应用的理想解决方案，能够满足各种不同限流需求，提供更灵活的系统设计。RT9728A 提供 SOT-23-6 和 WDFN-6L 2mm × 2mm 两种封装形式。
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RT9728A 电路图
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<div class="spec-list"><ul class="lv1"><li>±10% Current Limit Accuracy @ 1.3A </li><li>Adjustable Current Limit : 75mA to 1.3A (typ.) </li><li>Meet USB Current Limiting Requirements </li><li>Operating Voltage Range : 2.5V to 5.5V </li><li>Reverse Input-Output Voltage Protection </li><li>Built-in Soft-Start </li><li>120mΩ High-Side MOSFET </li><li>120μA Supply Current </li><li>15-kV ESD Protection per IEC 61000-4-2 (With External Capacitance) </li><li>Nemko Approved IEC62368-1 </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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RT9728A 订购信息
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RT9728A
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RT9728A
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<div class="spec-list"><ul class="lv1"><li>USB Bus/Self Powered Hubs </li><li>USB Peripheral Ports </li><li>ACPI Power Distribution </li><li>Battery Power Equipment </li><li>3G/3.5G Data Card, Set-Top Boxes </li></ul></div>
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