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RT9833 是对手动输入的复位信号具有抖动消除能力的对微处理器或其他数字系统的电源供应电压进行监测的微功耗电压检测器，在 1V~5V 的电压检测范围内以 0.1V 的级差提供内部固定的电压检测阈值，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，RT9833 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。RT9833 以 SC-82 封装形式供货。
/content/dam/richtek-eds/resources/product-specifications/rt98/rt9833/images/circuit/61941nehyj.GIF
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<li class="mv5">0.1V 级差、1V~5V 内部固定的电压检测阈值</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，不含卤素</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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