DS1816R-20-U Maxim Integrated, DS1816R-20-U Datasheet - Page 2
![no-image](/images/no-image-200.jpg)
DS1816R-20-U
Manufacturer Part Number
DS1816R-20-U
Description
Supervisory Circuits
Manufacturer
Maxim Integrated
Series
DS1816r
Datasheet
1.DS1816R-20-U.pdf
(5 pages)
Specifications of DS1816R-20-U
Number Of Voltages Monitored
1
Monitored Voltage
0 V to 5.5 V
Undervoltage Threshold
2.47 V
Overvoltage Threshold
2.64 V
Output Type
Active Low, Open Drain
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
250 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)
35 uA
Supply Voltage - Min
0 V
Part # Aliases
90-1816R-U20
OPERATION — POWER MONITOR
The DS1816 provides the function of detecting out-of-tolerance power supply conditions and warning a
processor-based system of impending power failure. When V
signal is asserted. On power-up,
reached the selected tolerance. This allows the power supply and microprocessor to stabilize before
is released.
BLOCK DIAGRAM (OPEN-DRAIN OUTPUT) Figure 1
APPLICATION EXAMPLE Figure 2
RST
is kept active for approximately 150ms after the power supply has
2 of 5
CC
is detected as out-of-tolerance, the
DS1816
RST
RST