Product Brief, 05-Dec-12
ACT8942
1150mA
1150mA
1300mA
80mA
320mA
320mA
320mA
PRODUCT OPTIONS
Block
REG1
REG2
REG3
REG4
REG5
REG6
REG7
Function
Step-Down DC/DC
Step-Down DC/DC
Step-Down DC/DC
LDO
LDO
LDO
LDO
Output Voltage
0.6V to 3.9V
0.6V to 3.9V
0.6V to 3.9V
0.6V to 3.9V
0.6V to 3.9V
0.6V to 3.9V
0.6V to 3.9V
Capability
FUNCTIONAL BLOCK DIAGRAM
(Optional)
AC Adaptor
USB
ACIN
BODY
SWITCH
BODY
SWITCH
4.35V to 6V CHGIN
ACT8942
VSYS
System Supply
VSYS
ActivePath
Control
BAT
Li
+
Battery
nSTAT
CHARGE STATUS
CURRENT SENSE
102µA
+
TH
VOLTAGE SENSE
CHGLEV
Charge
Control
PRE-
CONDITION
2.85V
VP1
THERMAL
REGULATION
ISET
OUT4
nRSTO
To VSYS
110°C
SW1
OUT1
OUT1
VSYS
nPBIN
PUSH BUTTON
OUT4
nPBSTAT
GP12
VP2
To VSYS
SW2
OUT2
OUT2
OUT4
GP12
nIRQ
VP3
To VSYS
SW3
PWRHLD
PWREN
VSEL
INL
To VSYS
SCL
BAT
SDA
LBI
-
OUT4
nLBO
1.2V
+
REG6
LDO
REG7
LDO
REFBP
Reference
OUT3
System
Control
OUT3
GP3
REG4
LDO
REG5
LDO
OUT4
OUT4
OUT5
OUT5
OUT6
OUT6
OUT7
OUT7
GA
EP
Innovative Power
TM
ActivePMU
TM
and
ActivePath
TM
are trademarks of Active-Semi.
I
2
C
TM
is a trademark of NXP.
-2-
www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
