ADM812 - Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic High RESET Output

ADM812是AD公司的一款电压监控器产品，ADM812是Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic High RESET Output，本站介绍了ADM812的封装应用图解、特点和优点、功能等，并给出了与ADM812相关的AD元器件型号供参考。

ADM812 - Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic High RESET Output - 电压监控器 - 简单复位电源监控器 IC - Analog Devices

产品描述

The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications. The ADM811/ADM812 are designed to monitor six different voltages, each allowing a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5 V supply voltage levels.

Included in this circuit is a debounced manual reset input. Reset can be activated using an electrical switch (or an input from another digital device) or by a degradation of the supply voltage. The manual reset function is very useful, especially if the circuit in which the ADM811/ADM812 are operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system.

APPLICATIONS

Microprocessor systems

Controllers

Intelligent instruments

Automotive systems

Safety systems

Portable instruments

Data Sheet, Rev. F, 8/09

优势和特点

Superior upgrade for MAX811/MAX812

Specified over temperature

Low power consumption: 5 μA typical

Precision voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V options

Reset assertion down to 1 VCC

Power-on reset: 140 ms minimum

Logic low RESET output (ADM811)

Logic high RESET output (ADM812)

Built-in manual reset

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