DESCRIPTION

The DS1816 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 150ms to allow the power supply and processor to stabilize.

FEATURES

Automatically restarts a microprocessor after power failure

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

Reduces need for discrete components

Precision temperature-compensated voltage reference and voltage sensor

Accurate 5%, 10% or 20% power monitoring

20% tolerance for use with 3V systems

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

Efficient open-drain output with internal 5k
pull-up resistor

Operating temperature -40C to +85C