The DS1815 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.
Key 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
Low-cost TO-92 or space saving surface-mount SOT-23 packages available
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