Datasheet

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FEATURES
§ Automatically restarts a microprocessor after
power failure
§ Maintains reset for 150 ms after V
CC
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
PIN ASSIGNMENT
PIN DESCRIPTION
TO-92
1 RST Active High Reset Output
2 V
CC
Power Supply
3 GND Ground
SOT-23
1 RST Active High Reset Output
2 V
CC
Power Supply
3 GND Ground
DESCRIPTION
The DS1812 EconoReset uses a precision temperature reference and comparator circuit to monitor the
status of the power supply (V
CC
). When an out-of-tolerance condition is detected, an internal power-fail
signal is generated which forces reset to the active state. When V
CC
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.
DS1812
5V EconoReset with Active
High Push-Pull Output
www.maxim-ic.com
12
3
TOP VIEW
SOT-23 PACKAGE
See Mech.
Drawings Section
On Website
1 2 3
1 2 3
BOTTOM VIEW
TO-92 PACKAGE
See Mech.
Drawings Section
On Website
DALLAS
DS1812
Econo
Reset

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