MAX703 - 低成本微处理器监控电路，具有备用电池控制器

MAX703是Maxim美信半导体公司的一款监控电路、电压监测、排序产品，MAX703是低成本微处理器监控电路，具有备用电池控制器，本站介绍了MAX703的封装应用图解、特点和优点、功能等，并给出了与MAX703相关的Maxim元器件型号供参考。

MAX703 - 低成本微处理器监控电路，具有备用电池控制器 - 监控电路、电压监测、排序 - 电池备份电路，提供手动复位和电源失效比较器 - 美信半导体

产品概述

The MAX703/MAX704 microprocessor (µP) supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery control functions in µP systems. These devices significantly improve system reliability and accuracy compared to that obtained with separate ICs or discrete components.

The MAX703/MAX704 are available in 8-pin DIP and SO packages and provide four functions:

An active-low reset during power-up, power-down, and brownout conditions.
Battery-backup switching for CMOS RAM, CMOS µPs, or other low-power logic circuitry.
A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V.
An active-low manual reset input.

The MAX703 and MAX704 differ only in their supply-voltage monitor levels. The MAX703 generates a reset when the supply drops below 4.65V, while the MAX704generates a reset below 4.40V.

关键特性

以下关键特性由Maxim美信半导体提供：

Battery-Backup Power Switching

Precision Supply-Voltage Monitor

4.65V (MAX703)

4.40V (MAX704)

200ms Reset Pulse Width

Debounced TTL/CMOS-Compatible Manual ResetInput

200µA Quiescent Current

50nA Quiescent Current in Battery-Backup Mode

Voltage Monitor for Power-Fail or Low-BatteryWarning

8-Pin DIP and SO Packages

Guaranteed RESET-bar Assertion to VCC = 1V

热门应用

计算机

控制器

精确的µP电源监控

智能仪表

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