General Description

The MAX6736–MAX6745 are low-power dual-/triple-voltage microprocessor (µP) supervisors. These devices assert a reset if any monitored supply falls below its factory-trimmed or adjustable threshold and maintain reset for a minimum timeout period after all supplies rise above their thresholds. The integrated dual/triple supervisory circuits significantly reduce size and power compared to separate ICs or discrete components. The low supply current of 6µA makes these devices ideal for portable equipment.

Features

♦ Dual-/Triple-Supply Reset Voltage Monitors

♦ Precision Factory-Set Reset Thresholds for Monitoring from 0.9V to 5.0V

♦ Adjustable Reset Input Down to 0.488V

♦ 150ms and 1200ms (min) Reset Timeout Period Options

♦ VCC1 Power-OK Output for Power-Supply Sequencing Applications (MAX6741/MAX6744)

♦ Power-Fail Input/Power-Fail Output (MAX6742/MAX6745)

♦ 6µA Supply Current

♦ Tiny SC70 Package

Applications

    Portable/Battery Powered Equipment

    Multivoltage Systems

    Notebook Computers

    Controllers

    PDAs

    GPS Equipment

    POS Equipment