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DESCRIPTION

The DS1812 EconoReset uses a precision temperature reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 150 ms to allow the power supply and processor to stabilize.

FEATURES

Automatically restarts a microprocessor after power failure

Maintains reset for 150 ms after VCC returns to an in-tolerance condition

Reduces need for discrete components

Precision temperature-compensated voltage reference and voltage sensor

Low-cost TO-92, or space saving surface mount SOT-23 packages available

Push-pull active high output

Operating temperature -40°C to +85°C