ICL7673 Intersil Corporation, ICL7673 Datasheet - Page 6

• Manufacturer Part Number: ICL7673
• Description: Automatic Battery Back-Up Switch
• Manufacturer: Intersil Corporation

BACKUP
SUPPLY
SUPPLY
SUPPLY
SUPPLY
MAIN
MAIN
MAIN
GND
+V
3V
FIGURE 12. LOW CURRENT BATTERY BACKUP SYSTEM WITH HYSTERESIS
6
FIGURE 13. HIGH CURRENT BACKUP SYSTEM WITH HYSTERESIS
+
-
+
-
SUPPLY
FIGURE 11. HIGH CURRENT BATTERY BACKUP SYSTEM
MAIN
GND
BACKUP
SUPPLY
R
S
BATTERY
BACKUP
V
V
V
V
P
P
S
S
R
S
8
2
8
2
ICL7673
+
-
ICL7673
GND
R
4
ICL7673
F
V
V
P
S
V
1
6
3
6
3
O
8
2
P-
1
P-
S-
S-
ICL7673
R
NC
NC
F
GND
R
3
R
2
2
S-
R
R
1
1
(NOTE 4)
PNP
PNP
R
R
R
R
NOTE 4. > 1M
GND
3
3
V
4
4
O
PNP
PNP
EQUIPMENT
EQUIPMENT
EXTERNAL
EXTERNAL
W
July 22, 2005
FN3183.4