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MAX814：±1%精度、低功耗、+3V与+5V微处理器监控电路

1%精度的微处理器监控IC

The MAX814/MAX815/MAX816 are high-accuracy microprocessor (µP) supervisory circuits that provide power-on reset, watchdog, and power-fail functions. They eliminate manual trimming and improve reliability in critical applications needing high-accuracy reset thresholds. The active-low RESET output is guaranteed to be in the correct state for VCC down to 1V. The reset comparator is designed to ignore fast transients on VCC. Reset thresholds are available for operation with a variety of 3V and 5V supply voltages. A 75µA maximum supply current makes the MAX814/MAX815/MAX816 ideal for use in portable equipment. All three devices are available in 8-pin DIP and SO packages. See the Selector Table below for a review of features.

关键特性 ±1% Worst-Case Reset Threshold Accuracy 4.8V, 4.7V, 4.55V, 3.03V, or Adjustable Reset Thresholds ±1% Low-Line Threshold Accuracy (MAX814) 60mV Above Reset Threshold 200ms Reset Time Delay Active-Low RESET Output Active-High RESET Output (MAX814/MAX816) 75µA Max Supply Current Guaranteed active-low RESET Valid to VCC = 1V Manual Reset Input ±2% Power-Fail Comparator Independent Watchdog with 1.56sec Timeout (MAX815) Power-Supply Glitch Immunity 8-Pin SO and DIP Packages

MAX814、MAX815、MAX816：典型应用电路 应用 控制器 精确的µP监控 智能仪表 医疗装置 便携式电池供电设备 机顶盒

数据手册DataSheet

关键参数

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