GENERAL DESCRIPTION

The ADM690A/ADM692A/ADM802L/M/ADM805L/M family of supervisory circuits offers complete single chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include µP reset, backup battery switchover, watchdog timer, and power failure warning.

FEATURES

Precision Supply Voltage Monitor

4.65 V ADM690A/ADM802L/ADM805L

4.40 V ADM692A/ADM802M/ADM805M

Reset Assertion Down to 1 V VCC

Reset Timeout—200 ms

Watchdog Timer—1.6 s

100 μA Quiescent Supply Current

Automatic Battery Backup Power Switching

Voltage Monitor for Power Fail

±2 Power Fail Accuracy on ADM802L/M

Space-Saving MicroSOIC Package (ADM690A)

APPLICATIONS

Microprocessor Systems

Computers

Controllers

Intelligent Instruments