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RT9816 是具有手动复位输入端的微功耗电压检测器,可对微处理器或数字系统的电源供应进行监测,必要时即输出复位信号使之还原到初始状态。它对手动输入的复位信号具有抖动消除能力,对电源供应则以内部固定的检测阈值为基准进行检测,检测范围在 1.2V-5V 之间,可选级差为 0.1V,可满足绝大多数数字应用系统的需求,自身电流消耗仅为 3μA。当 VDD 端电压低于预设阈值时,RT9816 将输出一个复位信号,此信号在 VDD 电压低于预设阈值期间将持续存在。在 VDD 电压重新回到阈值上方以后,复位信号将在延迟预定的时长以后恢复正常。如欲人为地输出复位信号,只需人为地使手动复位输入端 MR 的电压低于规格书所定义的 VIL 电平即可。RT9816 以 SC-82 封装形式供货。
1.2V-5V 内部固定的电压检测阈值,级差为 0.1V
电压检测精度:±1.5%
电流消耗:3μA
无任何外部元件
20μs 内输出复位信号
可预选恢复时长:0ms, 55ms, 220ms, 450ms
起效电源电压:0.9V
N 沟道 MOSFET 开漏输出
SC-82 封装
符合 RoHS 规范,完全无铅
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