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PDF DS1812 Data sheet ( Hoja de datos )
| Número de pieza | DS1812 | |
| Descripción | 5V EconoReset | |
| Fabricantes | Dallas Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de DS1812 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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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
DS1812
5V EconoReset with Active
High Push-Pull Output
PIN ASSIGNMENT
3
123
123
TO-92 PACKAGE
See Mech.
Drawings
12
SOT-23 PACKAGE
See Mech. Drawing
PIN DESCRIPTION
TO-92
1 RST
2 VCC
3 GND
Active High Reset Output
Power Supply
Ground
SOT-23
1 RST
2 VCC
3 GND
Active High Reset Output
Power Supply
Ground
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.
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1 page  
NOTES:
1. All voltages are referenced to ground.
2. wMwwe.DasautarSehdeewt4Uit.hcoVm CC ≥ 2.7 volts.
3. Measured with RST output open.
4. tR = 5 µs.
PART MARKING CODES
DS1812
SOT-23 PACKAGE
“A”, “B”, &“C” represent the device type.
810 - DS1810
811 - DS1811
812 - DS1812
813 - DS1813
815 - DS1815
816 - DS1816
817 - DS1817
818 - DS1818
“D” represents the device tolerance.
A-
5%
B-
10%
C-
15%
D-
20%
5 of 5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet DS1812.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DS1810 | 5V EconoReset | Dallas Semiconductor |
| DS1811 | 5V EconoReset | Dallas Semiconductor |
| DS1812 | 5V EconoReset | Dallas Semiconductor |
| DS1813 | 5V EconoReset | Dallas Semiconductor |
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