ACT81460
Rev 1.0, 18-Dec-2018
FUNCTIONAL BLOCK DIAGRAM
COUT
CIN
Lbb
VINBB
PGND34
VSYS
VINB2
VINB1
VIN
SWBB1 SWBB2
VBBST
CSYS
FB1
HSFET1
LSFET1
HSFET2
VIN Isense
HSFET
LSFET
OVP/Inrush/OCP
Gate Controller
L1
BUCK_BOOST
BUCK1
SW1
LSFET2
VINL1
HSFET
LSFET
COUT1
PGND1
FB2
OUTL1
BUCK2
LDO1
VINL2
OUTL2
L2
SW2
LDO2
PGND2
COUT2
VINL3
Charge Current
Sense
OUTL3
Tsense
ISET
LDO3
clk
Rset
System Control Logic
BFET
VINLS1
OUTLS1
LS1
LS2
LS3
Battery
Constant
Current (CC)
Feedback
VINLS2
VBAT
HSFET
LSFET
OUTLS2
SYNC
BOOST
CBAT
IFET
VINLS3
Current
Sink
GPIO1 GPIO2 GPIO3
GPIO4
NTC Detection
NTC
OUTLS3
ISNS
AGND
nPB SCL SDA
SWBST
L1
PGND
VBST
COUT
VIN_BST
CIN
Innovative PowerTM
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Copyright © 2018 Active-Semi, Inc.
3
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