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RT9833 是對手動輸入的重定信號具有抖動消除能力的對微處理器或其他數位系統的電源供應電壓進行監測的微功耗電壓檢測器,在 1V~5V 的電壓檢測範圍內以 0.1V 的級差提供內部固定的電壓檢測閾值,可滿足絕大多數數位應用系統的需求,自身電流消耗僅為 3μA。當 VDD 端電壓低於預設閾值時,RT9833 將輸出一個重定信號,此信號在 VDD 電壓低於預設閾值期間將持續存在。在 VDD 電壓重新回到閾值上方以後,重定信號將在延遲預定的時長以後恢復正常。如欲人為地輸出重定信號,只需人為地使手動重定輸入端 MR 的電壓低於規格書所定義的 VIL 電平即可。RT9833 以 SC-82 封裝形式供貨。
0.1V 級差、1V~5V 內部固定的電壓檢測閾值
電壓檢測精度:±1.5%
電流消耗:3μA
無任何外部元件
20μs 內輸出重定信號
可預選恢復時長:0ms, 55ms, 220ms, 450ms
起效電源電壓:0.9V
N 溝道 MOSFET 開漏輸出
SC-82 封裝
符合 RoHS 規範,不含鹵素
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