參數(shù)資料
型號: ICL7673ITV
廠商: INTERSIL CORP
元件分類: 電源管理
英文描述: Automatic Battery Back-Up Switch
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, MBCY8
封裝: METAL CAN-8
文件頁數(shù): 6/7頁
文件大?。?/td> 144K
代理商: ICL7673ITV
3-86
FIGURE 9. POWER SUPPLY FOR LOW POWER PORTABLE AC TO DC SYSTEMS
FIGURE 10. TYPICAL MICROPROCESSOR MEMORY APPLICATION
FIGURE 11. HIGH CURRENT BATTERY BACKUP SYSTEM
FIGURE 12. LOW CURRENT BATTERY BACKUP SYSTEM WITH HYSTERESIS
FUSE
120/240
VAC
BRIDGE
RECTIFIER
BATTERY
STACK
GND
V
O
V
S
V
P
1
8
2
4
2
8
4
6
STEPDOWN
TRANSFORMER
R
3
R
2
R
1
C
1
D
1
+
-
ICL7673
BATTERY
BACK-UP
ICL7663
REGULATOR
POWER
FAIL
DETECTOR
MICROPROCESSOR
VOLATILE
RAM
INTERRUPT SIGNAL
ICL7673
BACKUP CIRCUIT
+5V
MAIN
POWER
V
O
V
P
V
S
+
-
EXTERNAL
EQUIPMENT
V
O
GND
8
2
3
6
V
P
V
S
NC
P-
S-
1
PNP
PNP
MAIN
SUPPLY
3V
BACKUP
SUPPLY
+
-
(NOTE 4)
NOTE
4. > 1M
W
R
3
R
4
R
1
R
2
ICL7673
V
O
GND
8
2
3
V
P
V
S
S-
MAIN
SUPPLY
+
-
BATTERY
BACKUP
R
S
R
F
ICL7673
GND
GND
ICL7673
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