BQ24298_15 Datasheet, PDF (14/51 Pages) Texas Instruments – bq24298 I2C Controlled 3A Single Cell USB Charger With Narrow VDC Power Path Management and Adjustable Voltage USB OTG

bq24298
SLUSC59 – APRIL 2015
8.2 Functional Block Diagram
VBUS
V_{VBUS_UVLOZ}
V_BATZ+V_SLEEP
V_ACOV
V_INDPM
UVLO
SLEEP
ACOV
EN_HIZ
REGN
LDO
FBO
VBUS
V_{OTG_OVP}
VBUS_OVP_BOOST
I(Q2)
I_{OTG_HSZCP}
Q2_UCP_BOOST
RBFET (Q1)
Q1 Gate
Control
I_INDPM
IC T_J
T_REG
SYS
V_SYSMIN
I(Q3)
I_{OTG_LSOCP}
Q3_OCP_BOOST
CONVERTER
CONTROL
BAT _BATOVP
104%xV_{BAT_REG}
BAT
V_{BAT_REG}
I_{LSFET_UCP}
I(Q3)
UCP
HSFET (Q2)
REGN
Q2_OCP
LSFET (Q3)
I(Q2)
I_{HSFET_OCP}
I_{CHG_REG}
EN_HIZ
EN_CHARGE
EN_BOOST
REFRESH
V_BTST-SW
V_{BTST_REFRESH}
www.ti.com
PMID
REGN
BTST
SW
PGND
ILIM
PSEL
OTG
INT
STAT
PG
USB Host
Adapter
Detection
I_CHG
SYS
REF
DAC
USB
Adapter
I2C
Interface
BAD_SRC
CONVERTER
CONTROL
STATE ^TSHUT
MACHINE
BAT_GD
I_BADSRC
I_DC
IC T_J
T_SHUT
BAT
V_BATGD
V_{BAT_REG}
I_{CHG_REG}
Q4 Gate
Control
BATFET (Q4)
REGN
RECHRG
V_{BAT_REG} - V_RECHG
BAT
bq24298
CHARGE
CONTROL
STATE
MACHINE
TERMINATION
I_CHG
I_TERM
SUSPEND
BATLOWV
V_BATLOWV
BAT
BATTERY
THERMISTER
SENSING
BATSHORT
V_SHORT
BAT
BAT
QON
TS
SCL SDA
CE
14
Submit Documentation Feedback
Product Folder Links: bq24298
Copyright © 2015, Texas Instruments Incorporated