BQ24195 Datasheet, PDF (4/41 Pages) Texas Instruments – I2C Controlled 2.5A / 4.5A Single Cell USB/Adapter Charger With 5.1V at 1A / 5.1V at 2.1A Synchronous Boost Operation

bq24195
bq24195L
SLUSB97 – OCTOBER 2012
FUNCTIONAL BLOCK DIAGRAM
VBUS
3.8V
V_BATz+80mV
18V
UVLO
SLEEP
ACOV
EN_HIZ
REGN
LDO
FBO
Q1
Q1 Gate
Control
V_INDPM
I_INDPM
IC T_J
T_REG
SYS
V_SYSMIN
I(Q2)
100mA
Q2_UCP_BOOST
I(Q3)
3.2A
Q3_OCP_BOOST
CONVERTER
CONTROL
BAT _BATOVP
104%xV_{BAT_REG}
BAT
Q2
REGN
V_{BAT_REG}
100mA
I(Q3)
UCP
Q2_OCP
Q3
I(Q2)
7A
I_{CHG_REG}
EN_HIZ
EN_CHARGE
EN_BOOST
REFRESH
V_(BTST-SW)
4.2V
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PMID
REGN
BTST
SW
PGND
ILIM
D+
D–
OTG
INT
STAT
USB Host
Adapter
Detection
REF
DAC
USB
Adapter
1.5A
I2C
Interface
BAD_SRC
CONVERTER
CONTROL
STATE ^TSHUT
MACHINE
BAT_GD
30mA
I_DC
IC T_J
T_SHUT
BAT
3.6V
RECHRG
4.1V
BAT
CHARGE
CONTROL
STATE
MACHINE
TERMINATION
I_CHG
I_TERM
SUSPEND
BATLOWV
2.8V
BAT
BATSHORT
2V
BAT
I_CHG
V_{BAT_REG}
I_{CHG_REG}
Q4 Gate
Control
Q4
bq24195L
bq24195
BATTERY
THERMISTER
SENSING
SCL SDA
CE
SYS
BAT
TS1
TS2
4
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