The IMP809/IMP810 are 3.0V, 3.3V and 5.0V power supply supervisor circuits
optimized for low-power microprocessor (μP), microcontroller (μC)
and digital systems. The IMP809/810 are improved drop-in replacements
for the Maxim MAX809/810 and feature 60% lower supply current.
A reset signal is issued if the power supply voltage drops below a preset
reset threshold and is asserted for at least 140ms after the supply has
risen above the reset threshold. The IMP809 has an active-low RESET
output that is guaranteed to be in the correct state for VCC down to 1.1V.
The IMP810 has an active-high RESET output. The reset comparator is
designed to ignore fast transients on VCC.
Low supply current makes the IMP809/IMP810 ideal for use in portable
and battery operated equipment. The IMP809/IMP810 are available in a
compact 3-pin SOT23 package.
Six voltage thresholds are available to support 3V to 5V systems:

在IMP809 / imp810是3.0V，3.3V和5.0V电源监控电路
低功耗微处理器优化（μP）、微控制器（μC）
数字系统。810是改进的IMP809 /下降的替代品
该准则具有810特征60%低电源电流。
如果电源电压低于预设值，则发出复位信号。
复位阈值，至少140ms后宣称的供应
高于复位门限。在IMP809具有低有效复位
输出，保证是在正确的状态下VCC到1.1V。
的imp810具有高电平有效复位输出。复位比较器
旨在忽略快速瞬变的VCC。
低电源电流是用于便携式的IMP809 / imp810理想
电池供电设备。在IMP809 / imp810在可
紧凑的3引脚SOT23封装。
六电压阈值可支持3V至5V系统：

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