BQ25606 Datasheet, PDF (15/43 Pages) Texas Instruments – Standalone 3.0-A, Single Cell Battery Charger With 40V Over Voltage Protection Controller

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8.2 Functional Block Diagram
bq25606
SLUSCK6 – MAY 2017
VBUS
PMID
ACDRV
IIN
EN_REGN
VVVAC_PRESENT
+
VVAC
±
VBAT + VSLEEP
+
VVAC _±
VVAC ₊
VVAC_OV _±
UVLO
SLEEP
ACOV
EN_REGN
EN_HIZ
REGN
LDO
RBFET (Q1)
Q1 Gate
Control
FBO
REGN
BTST
VIN
VAC
VVBUS
±
VINDPM
+
IIN ₊
IINDPM
±
IC TJ
+
TREG
±
SYS
±
VSYSMIN
+
VVBUS
+
VOTG_OVP
±
VBUS_OVP_BOOST
IQ2
+
VOTG_HSZCP
±
Q2_UCP_BOOST
IQ3
+
VOTG_BAT
±
Q3_OCP_BOOST
BAT
+
104% × V BAT_REG
±
BAT
+
ILSFET_UCP
+
± ^VBAT_REG
IQ3
±
BATOVP
UCP
+ ^ICHG
± ^ICHG_REG
EN_HIZ
EN_CHARGE
EN_BOOST
HSFET (Q2)
CONVERTER
Control
REGN
Q2_OCP
REFRESH
LSFET (Q3)
IQ2
+
IHSFET_OCP
±
VBTST - VSW
+
VBTST_REFRESH
±
SW
PGND
SYS
ILIM
ICHG
VSET
D+
'Å
OTG
STAT
/PG
Input
Source
Detection
REF
DAC
USB
Adapter
BAD_SRC
Converter
Control State
Machine
TSHUT
BAT_GD
RECHRG
TERMINATION
CHARGE
CONTROL
STATE
MACHINE
BATLOWV
BATSHORT
SUSPEND
IBADSRC
+
IDC
±
IC TJ
+
TSHUT
±
BAT
+
VBATGD
±
VREG -VRECHG
+
BAT
±
ICHG
+
ITERM
±
VBATLOWV
+
BAT
±
VSHORT
+
BAT
±
VBAT_REG
ICHG_REG
ICHG
Q4 Gate
Control
BATFET
(Q4)
BAT
bq25606
Battery
Sensing
TS
Thermistor
/CE
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