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RT9819 是微功耗的电压检测器,可用于微处理器或数字系统对其电源电压进行监测,具有 1.2V~5V 的固定电压检测阈值,级差为 0.1V ,可覆盖绝大多数数字系统的需求,电流消耗仅为 3μA。当其 VDD 电压低于预设的阈值时,RT9819 将输出一个复位信号,该信号将在 VDD 电压恢复以前持续存在。当 VDD 电压重新回到阈值以上后,复位信号将在延迟预定的时间以后恢复正常。RT9819 的封装是 SC-70-3、SC-82、SOT-23-3 和 WDFN-6L 1.6x1.6。
1.2V~5V 固定的内部阈值,级差 0.1V
±1.5% 精度
无需使用外部元件
20μs 以内的快速复位输出
内建恢复延时选项:0ms, 55ms, 200ms, 450ms
800ns 手动复位输入去抖动时间
功能有效工作电压:0.9V
CMOS 推挽输出
SC-70-2, SC-82, SOT-23-3 和 WDFN-6L 1.6x1.6 封装
符合 RoHS 规范,不含卤素
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