DS1231-20N+ Maxim Integrated Products, DS1231-20N+ Datasheet - Page 4
![IC POWER MONITOR 20NS 8-DIP](/photos/1/39/13900/175-8-dip_sml.jpg)
DS1231-20N+
Manufacturer Part Number
DS1231-20N+
Description
IC POWER MONITOR 20NS 8-DIP
Manufacturer
Maxim Integrated Products
Type
Simple Reset/Power-On Resetr
Datasheet
1.DS1231-20.pdf
(9 pages)
Specifications of DS1231-20N+
Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active High/Active Low
Reset Timeout
150 ms Minimum
Voltage - Threshold
4.37V, 4.62V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Monitored Voltage
4.5 V to 5.5 V
Undervoltage Threshold
4.5 V
Overvoltage Threshold
4.74 V
Output Type
Active High, Active Low, Open Drain
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Supply Current (typ)
2000 uA
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Minimum Operating Temperature
- 40 C
Power Fail Detection
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
INPUT PIN HYSTERESIS Figure 3
APPLICATION WITH MODE PIN CONNECTED TO V
NOTE: RST requires a pull–up resister.
DS1231/S
022698 4/9
V
V
NMI
V
NMI
V
OH
OH
OL
OL
MODE = GND, V
MODE = V
CC
V SENSE
EXAMPLE: V SENSE = 8 VOLTS AT TRIP POINT AND A
THEN 8
, V
V
V
TP-
TP-
CC
CC
= +5V
= +5V
R1
R2
V
V
MAXIMUM VOLTAGE OF 17.5V WITH R2 = 10K
R1
TP
TP
R1
+
+
10K
R2
VOLTAGE SENSE POINT
+5V
10K
R2
V
V
IN
IN
X 2.3
(-5% V
X 2.3
CC
IN
MODE
TOL
GND
THRESHOLD)
DS1231
CC
V MAX
R1 = 25K
Figure 4
RST
RST
V
NMI
NOTE: HYSTERESIS TOLERANCE IS +60 mV
CC
V
V
TP
TP-
+
V SENSE
VTP
+5V
–20
2.3
2.5
X 5.0
2.15
–35
2.5
TO
P
–50
2.0
2.5