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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 V<sub>DD</sub> 端电压低于预设阈值时，RT9816 将输出一个复位信号，此信号在 V<sub>DD</sub> 电压低于预设阈值期间将持续存在。在 V<sub>DD</sub> 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 V<SUB>IL</SUB> 电平即可。RT9816 以 SC-82 封装形式供货。
/content/dam/richtek-eds/resources/product-specifications/rt98/rt9816/images/circuit/24001qwzuc.GIF
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<li class="mv5"> 1.2V-5V 内部固定的电压检测阈值，级差为 0.1V</li><li class="mv5"> 电压检测精度：±1.5%</li><li class="mv5"> 电流消耗：3μA</li><li class="mv5"> 无任何外部元件</li><li class="mv5"> 20μs 内输出复位信号</li><li class="mv5"> 可预选恢复时长：0ms, 55ms, 220ms, 450ms</li><li class="mv5"> 起效电源电压：0.9V</li><li class="mv5"> N 沟道 MOSFET 开漏输出</li><li class="mv5"> SC-82 封装</li><li class="mv5"> 符合 RoHS 规范，完全无铅</li>
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<li class="mv5"> 计算机</li><li class="mv5"> 控制器</li><li class="mv5"> 智能仪器</li><li class="mv5"> 微处理器电源监控</li><li class="mv5"> 便携式、电池供电设备</li>
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