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The RT9817 is a micro-power voltage detector with deglitched manual reset input supervising the power supply voltage level for microprocessors (&mu;P) or digital systems. It provides internally fixed threshold levels with 0.1V per step ranging from 1.2V to 5V, which covers most digital applications. It features low supply current of 3&mu;A. The RT9817 performs supervisory function by sending out a reset signal whenever the V<sub>DD</sub> voltage falls below a preset threshold level. This reset signal will last the whole period before V<sub>DD</sub> recovering. Once V<sub>DD</sub> recovered upcrossing the threshold level, the reset signal will be released after a certain delay time. To pull reset signal low manually, just pull the manual reset input (MR) below the specified V<sub>IL</sub> level. RT9817 is provided in SC-82 and SOT-143 packages.
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  • 固定阈值范围：1.2V~5V，以 0.1V 为可选级距
  • 电压检测精度：±1.5%
  • 电流消耗：3μA
  • 无外围元件需求
  • 在 20μs 内复位
  • 可选恢复延时时长：0ms/55ms/220ms/450ms
  • 功能有效电压起点：0.9V
  • CMOS 推挽输出
  • SC-82、SOT-143 封装
  • 符合 RoHS 规范，不含卤素
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计算机 控制器 智能仪表 关键微处理器、控制器之电源监控 便携式、电池供电设备
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