Active-Semi
FUNCTIONAL BLOCK DIAGRAM
BODY
SWITCH
ACT8828
Rev 3, 24-Sep-09
(Optional)
AC Adaptor
USB
Active-Semi
ACT8828
BODY
SWITCH
CHG_IN
Up to 12V
ACIN
VSYS
System Supply
BAT
DCCC
VSYS
ActivePath
Control
CURRENT SENSE
100µA
Li+ Battery
+
TH
nSTAT
CHARGE STATUS
VOLTAGE SENSE
PRE-
CONDITION
2.9V
110°C
BTR
ISET
VSYS
CHGLEV
OUT1
nRSTO
Charge
Control
THERMAL
REGULATION
VP1
To VSYS
SW1
REG1
OUT1
OUT1
GP1
VP2
nIRQ
SW2
REG2
OUT2
OUT2
GP2
VP3
VSYS
nPBIN
PUSH BUTTON
OUT1
To VSYS
SCL
SDA
ON1
ON2
ON3
ON4
VSEL
REFBP
GA
EP
REG4
System
Control
REG3
To VSYS
SW3
OUT3
OUT3
GP3
SW4
OVP4
FB4
GP4
To VSYS
OUT4
7s x 3p
WLEDs
Reference
Innovative Power
TM
ActivePMU
and
ActivePath
are trademarks of Active-Semi.
I
2
C
TM
is a trademark of Philips Electronics.
TM
TM
-3-
www.active-semi.com
Copyright © 2009 Active-Semi, Inc.