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RT9819 是微功耗的電壓檢測器,可用於微處理器或數位系統對其電源電壓進行監測,具有 1.2V~5V 的固定電壓檢測閾值,級差為 0.1V ,可覆蓋絕大多數數位系統的需求,電流消耗僅為 3μA。當其 VDD 電壓低於預設的閾值時,RT9819 將輸出一個重定信號,該信號將在 VDD 電壓恢復以前持續存在。當 VDD 電壓重新回到閾值以上後,重定信號將在延遲預定的時間以後恢復正常。RT9819 的封裝是 SC-70-3、SC-82、SOT-23-3 和 WDFN-6L 1.6x1.6。
1.2V~5V 固定的內部閾值,級差 0.1V
±1.5% 精度
無需使用外部元件
20μs 以內的快速復位輸出
內建恢復延時選項:0ms, 55ms, 200ms, 450ms
800ns 手動復位輸入去抖動時間
功能有效工作電壓:0.9V
CMOS 推挽輸出
SC-70-2, SC-82, SOT-23-3 和 WDFN-6L 1.6x1.6 封裝
符合 RoHS 規範,不含鹵素
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