General Description

The MAX6832–MAX6840 are microprocessor (μP) supervisory circuits used to monitor low-voltage power supplies in μP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +1.2V to +1.8V powered circuits.

特性 Features

? Factory-Set Reset Threshold Voltages for Nominal Supplies from 1.2V to 1.8V

? Low Power Consumption: 7.5μA (typ)

? Space-Saving 3- and 4-Pin SC70 Packages

? ±2.5 Reset Threshold Accuracy Over Temperature

? Five Different Timeout Periods Available: 70μs (voltage detector), 1.5ms, 30ms, 210ms, and 1.68s

? Three Reset Output Configurations Push-Pull RESET Push-Pull RESET Open-Drain RESET

? Guaranteed Reset Valid to VCC = 0.55V—Active-Low 0.75V—Active-High

? Adjustable Threshold Reset-In Option

? Manual Reset Input Option

? Immune to Short Negative VCC Transients

? Pin Compatible with MAX803/MAX809/MAX810, MAX6711/MAX6712/MAX6713, and MAX6381–MAX6390 Series

Applications

??? Computers

??? Controllers

??? Intelligent Instruments

??? Critical μP and μC Power Monitoring

??? Portable/Battery-Powered Equipment