DS1231-35+ Maxim Integrated Products, DS1231-35+ Datasheet - Page 6

• Manufacturer Part Number: DS1231-35+
• Description: IC POWER MONITOR 35NS 8-DIP
• Manufacturer: Maxim Integrated Products
• Type: Simple Reset/Power-On Resetr

Specifications of DS1231-35+

• 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: 0°C ~ 70°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
• Manual Reset: No
• Watchdog: No
• Battery Backup Switching: No
• Power-up Reset Delay (typ): 85 ms to 300 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Supply Current (typ): 2000 uA
• Mounting Style: Through Hole
• Maximum Operating Temperature: + 70 C
• Chip Enable Signals: No
• Minimum Operating Temperature: 0 C
• Operating Supply Voltage: 5 V
• Output Type: Active High or Active Low or Open Drain
• Power Fail Detection: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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