General Description

The MAX803/MAX809/MAX810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits.

Features

♦ Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages

♦ Fully Specified Over Temperature

♦ Available in Three Output Configurations

   Open-Drain RESET Output (MAX803)

   Push-Pull RESET Output (MAX809)

   Push-Pull RESET Output (MAX810)

♦ 140ms min Power-On Reset Pulse Width

♦ 12µA Supply Current

♦ Guaranteed Reset Valid to VCC = +1V

♦ Power Supply Transient Immunity

♦ No External Components

♦ 3-Pin SC70 and SOT23 Packages

Applications

   Computers

   Controllers

   Intelligent Instruments

   Critical µP and µC Power Monitoring

   Portable/Battery-Powered Equipment

   Automotive