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.

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