ICL7665AESA Maxim Integrated Products, ICL7665AESA Datasheet - Page 10

• Manufacturer Part Number: ICL7665AESA
• Description: Supervisory Circuits Integrated Circuits (ICs)
• Manufacturer: Maxim Integrated Products

Specifications of ICL7665AESA

• Number Of Voltages Monitored: 2
• Undervoltage Threshold: 1.275 V, 1.225 V
• Overvoltage Threshold: 1.325 V, 1.375 V
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Supply Voltage (max): 16 V
• Supply Voltage (min): 2 V
• Supply Current (typ): 15 uA
• Maximum Power Dissipation: 471 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-8
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: No

Microprocessor Voltage Monitor with
Dual Over/Undervoltage Detection
Figure 6. Fault Monitor for a Single Supply
Figure 8. Low-Battery Warning and Low-Battery Disconnect
Figure 9. Power-Fail Warning and Power-Up/Power-Down Reset
UNREGULATED
10
OVERVOLTAGE
DC INPUT
DETECTOR
V
V
324k
U
L
______________________________________________________________________________________
5.55V
5.45V
715k
5.6M
130k
13M
5%
4700µF
100k
OUT1
HYST1
SET1
5V REGULATOR
HYST1
SET1
ICL7665
OUT1
7805
V+
+5V SUPPLY
ICL7665
HYST2
V+
OUT2
SET2
R31
R21
R11
HYST2
OUT2
SET2
HYST1
SET1
OUT1
1M
ICL7665
POWER-FAIL WARNING
22M
470µF
V+
GND
2.2M
100k
7.5M
5%
LOW-BATTERY SHUTDOWN
HYST2
OUT2
SET2
POWER OK
UNDERVOLTAGE
DETECTOR
V
V
U
L
249k
4.45V
4.55V
BACK-UP
BATTERY
ENABLE
RESET
WRITE
OUTPUT
5V, 1A
OR
R32
R22
R12
Figure 7. Multiple-Supply Fault Monitor
Figure 10. AC Power-Fail and Brownout Detector
10VAC
60Hz
+15V
+5V
1M
681k
100k
1.02M
R21B
R21A
274k
SHDN
V+
20V CENTER
TAPPED TRANS
ICL7663
OUT1 OUT2
Q1
GND
49.9k
R11
R2
1M
SENSE
R31
22M
SET
1M
R3
100
4700 F
HYST2
SET2
HYST1
SET1
OUT2
OUT1
ICL7665
LOW-BATTERY WARNING
ICL7665
+5V
C1
V+
HYST1
OUT2
OUT1
5V REGULATOR
SET1
HYST2
SET2
V+
7805
+5V
+5V, 1A
OUTPUT
301k
R1
22M
-5V
POWER OK
-15V
+5V
POWER-FAIL
WARNING
100k
787k
5V, 1A