MAX805L - 微处理器监控电路

MAX805L是Maxim美信半导体公司的一款监控电路、电压监测、排序产品，MAX805L是微处理器监控电路，本站介绍了MAX805L的封装应用图解、特点和优点、功能等，并给出了与MAX805L相关的Maxim元器件型号供参考。

MAX805L - 微处理器监控电路 - 监控电路、电压监测、排序 - 工业标准、功能完备的µP监控电路 - 美信半导体

产品概述

The MAX690A/MAX692A/MAX802L/MAX802M/MAX805Lreduce the complexity and number of componentsrequired for power-supply monitoring and battery-controlfunctions in microprocessor (µP) systems. They significantlyimprove system reliability and accuracy comparedto separate ICs or discrete components.

These parts provide four functions:
1) A reset output during power-up, power-down, andbrownout conditions.
2) Battery-backup switching for CMOS RAM, CMOSµP, or other low-power logic.
3) A reset pulse if the optional watchdog timer has notbeen toggled within 1.6sec.
4) A 1.25V threshold detector for power-fail warning orlow-battery detection, or to monitor a power supplyother than +5V.

The parts differ in their reset-voltage threshold levelsand reset outputs. The MAX690A/MAX802L/MAX805Lgenerate a reset pulse when the supply voltage dropsbelow 4.65V, and the MAX692A/MAX802M generate areset below 4.40V. The MAX802L/MAX802M guaranteepower-fail accuracies to ±2%. The MAX805L is thesame as the MAX690A except that RESET is providedinstead of active-low RESET.

All parts are available in 8-pin DIP and SO packages.The MAX690A/MAX802L are pin compatible with theMAX690 and MAX694. The MAX692A/MAX802M arepin compatible with the MAX692.

关键特性

以下关键特性由Maxim美信半导体提供：

Precision Supply Voltage Monitor:

4.65V for MAX690A/MAX802L/MAX805L

4.40V for MAX692A/MAX802M

Reset Time Delay: 200ms

Watchdog Timer: 1.6s Timeout

Battery-Backup Power Switching

200µA Quiescent Supply Current

50nA Quiescent Supply Current in Battery-Backup Mode

Voltage Monitor for Power-Fail or Low-Battery Warning

Power-Fail Accuracy Guaranteed to ±2% (MAX802L/M)

Guaranteed Active-Low RESET Assertion to VCC = 1V

8-Pin SO and DIP Packages

热门应用

电池供电计算机/控制器

精确的µP监控

智能仪表

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