DS1812 Datasheet, PDF (2/5 Pages) Dallas Semiconductor – 5V EconoReset with Active High Push-Pull Output

DS1812
OPERATION - POWER MONITOR
The DS1812 provides the function of detecting out-of-tolerance power supply conditions and warning a
processor-based system of impending power failure. When V_CC is detected as out-of-tolerance, the RST
signal is asserted. On power-up, RST is kept active for approximately 150 ms after the power supply has
reached the selected tolerance. This allows the power supply and microprocessor to stabilize before RST
is released.
BLOCK DIAGRAM (CMOS OUTPUT) Figure 1
APPLICATION EXAMPLE Figure 2
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