GENERAL DESCRIPTION

The ADM691A/ADM693A/ADM800L/ADM800M 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, CMOS RAM write protection, and power-failure warning. The family of products provides an upgrade for the MAX691A/93A/800M family of products.

FEATURES

Low Power Consumption:

Precision Voltage Monitor

±2 Tolerance on ADM800L/M

Reset Time Delay—200 ms, or Adjustable

1 μA Standby Current

Automatic Battery Backup Power Switching

Fast Onboard Gating of Chip Enable Signals

Also Available in TSSOP Package (ADM691A)

APPLICATIONS

Microprocessor Systems

Computers

Controllers

Intelligent Instruments

Automotive Systems

Critical mP Power Monitoring