DS1812R-15-U Maxim Integrated, DS1812R-15-U Datasheet - Page 2
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DS1812R-15-U
Manufacturer Part Number
DS1812R-15-U
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
DS1812r
Datasheet
1.DS1812R-5-U.pdf
(5 pages)
Specifications of DS1812R-15-U
Number Of Voltages Monitored
1
Monitored Voltage
0 V to 5.5 V
Undervoltage Threshold
4 V
Overvoltage Threshold
4.24 V
Output Type
Active High, Push-Pull
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
300 ms
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
SOT-23
Chip Enable Signals
No
Minimum Operating Temperature
- 40 C
Power Fail Detection
Yes
Supply Current (typ)
40 uA
Supply Voltage - Min
0 V
Part # Aliases
90-1812R-U15
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
is detected as out-of-tolerance, the RST
CC
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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