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RT9823 是集成化的智慧多電壓檢測、監控器件,可對包括 5V 電壓軌和使用電阻分壓器進行設定的另一個電壓軌進行電壓檢測、監控。RT9823 通過在檢測到受檢電壓降低到預設值的 80% 以下時輸出 CTR 信號來實現監控功能。CTR 信號在 VCC 電壓恢復以前將持續處於有效狀態,在受檢電壓高於其預設值 80% 以後,CTR 信號將繼續有效並在延遲 300ms 後釋放。在受檢電壓處於正常狀態期間,MR(手動重定)可對 CTR 信號進行控制。當 MR 變高時,CTR 信號將立即變成低電平。RT9823 的封裝是 SOT-23-6。
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