General Description

The MAX8215 contains five voltage comparators; four are for monitoring +5V, -5V, +12V, and -12V, and the fifth monitors any desired voltage. The MAX8216 is identical, except it monitors ±15V supplies instead of ±12V. The resistors required to monitor these voltages and provide comparator hysteresis are included onchip. All comparators have open-drain outputs. These devices consume 250µA max supply current over temperature.

Features

♦ 4 Dedicated Comparators plus 1 Auxiliary Comparator

♦ 5V Dedicated Comparator Has ±1.25 Accuracy

♦ -5V, +12V, -12V, +15V, -15V Dedicated Comparators Have ±1.5 Accuracy

♦ Overvoltage/Undervoltage Detection or Programmable Delay Using Auxiliary Comparator

♦ Internal 1.24V Reference with ±1 Initial Accuracy

♦ Wide Supply Range: 2.7V to 11V

♦ Built-In Hysteresis

♦ 250µA Max Supply Current Over Temp.

♦ Independent Open-Drain Outputs

♦ All Precision Components Included

Applications

    Microprocessor Voltage Monitor

        +5V, -5V, +12V, -12V Supply Monitoring (MAX8215)

        +5V, -5V, +15V, -15V Supply Monitoring (MAX8216)

    Overvoltage/Undervoltage Detection with Uncommitted Comparator

    Industrial Controllers

    Mobile Radios

    Portable Instruments

    Industrial Equipment

    Data-Acquisition Systems