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RT9385 是包含了 x1/x1.5/x2 升壓模式的電荷泵和低壓差定電流源的5通道 LED 驅動器,可為5只 LED 提供穩定一致的電流供應,每個 LED 通道的電流最大可達 25mA。它因具有 x1/x1.5/x2 多種升壓模式和低壓差的電流調節器而能維持最高的轉換效率,當需要調光時,可用普通 CPU 的 GPIO 端子生成 PWM 信號來對它進行調節以實現 LED 的亮度控制。RT9385 的可用封裝是 WQFN-16L 2x3 的,小型的 1μF 電容可被用作泵電容與之配合工作,這為可擕式設備提供了一個空間佔用很少的高效背光驅動方案。
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