DS1231-20N Maxim Integrated Products, DS1231-20N Datasheet - Page 6

• Manufacturer Part Number: DS1231-20N
• Description: IC POWER MONITOR 20NS IND 8-DIP
• Manufacturer: Maxim Integrated Products
• Type: Simple Reset/Power-On Resetr

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)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: DS123120N

APPLICATION WITH MODE PIN GROUNDED Figure 6
NOTE: RST requires a pull–up resister.
AC VOLTAGE MONITOR WITH OPTO-ISOLATION Figure 7
NOTE: RST requires a pull–up resister.
DS1231/S
022698 6/9
AC LINE
INPUT
VOLTAGE SENSE POINT (TRIP VALUE)
CTR
EXAMPLE:
THEN 105
IF
VOLTAGE SENSE POINT
IC
IF
R1
VZ
CTR
100
IC
CTR = 0.2 IC = 30 A IF = 150 A
VOLTAGE SENSE POINT = 105 AND
VZ = 100 VOLTS
ZENNER VOLTAGE
CURRENT TRANSFER RATIO
0.2
30
x R1
IN
MODE
TOL
GND
IN
MODE
TOL
GND
DS1231
R1
DS1231
RST
RST
V
NMI
CC
33K
RST
RST
VZ
V
NMI
CC
-5% V
-5% V
CTR
CC
IC
THRESHOLD
+5V
CC
X R1
+5V
DC
THRESHOLD
DC
TO
TO
P
P