MCP73838 Microchip Technology Inc., MCP73838 Datasheet - Page 3

• Manufacturer Part Number: MCP73838
• Description: Advanced Stand-alone Li-ion / Li-polymer Battery Charge Management Controller With Autonomous Ac-adapter Or Usb-port Source Selection
• Manufacturer: Microchip Technology Inc.

Functional Block Diagram (MCP73837/8)
© 2007 Microchip Technology Inc.
V
PROG1
PROG2
STAT1
STAT2
PG (TE)
V
AC
USB
VO
REG
REFERENCE,
BIAS, UVLO,
AND SHDN
CHARGE
CONTROL,
TIMER,
AND
STATUS
LOGIC
SENSEFET
G=0.001
SENSEFET
G=0.001
SENSEFET
G=0.001
SENSEFET
G=0.001
UVLO
DIRECTION
CONTROL
DIRECTION
CONTROL
V REF (1.21V)
HTVT
LTVT
CHARGE
LDO
TERM
+
+
+
+
+
-
-
-
-
-
157.3k
72.7k
310k
6k
100 mA/500 mA
AC/USB
AC/USB
470.6k
121k
PRECONDITION
111k
+
-
1M
10k
1k
VO
V
REG
REF
10k
470.6k
48k
175k
175k
2k
MCP73837/8
+
-
+
-
+
-
CURRENT
LIMIT
CA
VA
50 µA
6 µA
VO
VO
REG
REG
DS22071A-page 3
V
V
THERM
BAT
SS