Datasheet

MCP73811/2
DS22036B-page 2 © 2007 Microchip Technology Inc.
Typical Applications
Functional Block Diagram
CE
V
DD
V
SS
PROG
V
BAT
+
-
Single
Li-Ion
Cell
4
MCP73812
5
3
1
500 mA Li-Ion Battery Charger
2
2kΩ
CE
V
DD
V
SS
PROG
V
BAT
+
-
Single
Li-Ion
Cell
4
MCP73811
5
3
1
1µF
450 mA Li-Ion Battery Charger
2
V
IN
1µF
1µF
V
IN
1µF
+
-
Reference
Generator
V
REF
(1.21V)
V
BAT
V
DD
V
BAT
G=0.001
V
SS
Direction
Control
+
-
Direction
Control
6µA
+
-
CA
157.3 kΩ
388.7 kΩ
+
-
VA
CE
Charge
Enable
2.7 kΩ
PROG
111 kΩ
528.6 kΩ
MCP73811MCP73812
12 kΩ