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| BQ24161B_15 Datasheet, PDF (13/52 Pages) Texas Instruments – bq2416xx 2.5A, Dual-Input, Single-Cell Switched-Mode Li-Ion Battery Charger with Power Path Management and I2C Interface | |||
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9.2 Functional Block Diagram
bq24160, bq24160A, bq24161
bq24161B, bq24163, bq24168
SLUSAO0F â NOVEMBER 2011 â REVISED JULY 2014
PMIDU PMIDI
5.2-V Reference
DRV
IN
Q1
USB
IN IINLIM
USB IUSBLIM
IN VINDPM
USB VINDPM
VSYS(REG)
IBAT(REG)
5A
CbC Current
Limit
DC-DC CONVERTER
PWM LOGIC,
COMPENSATION
AND
BATTERY FET CONTROL
VBAT(REG)
DIE Temp
Regulation
CD
SDA
SCL
bq24160, 60A, 3
D+
Dâ
bq24161, 1B, 8
PSEL
VSUPPLY References
VUSB +
VUSBOVP
SUPPLY_SEL
Termination
Reference
OVP Comparators
VIN +
VINOVP
IBAT
Termination Comparator
Recharge Comparator
VUSB +
VBAT + VSLP
Sleep Comparators
VIN +
VBAT + VSLP
Start Recharge
Cycle
Enable Linear
Charge
VBATREG â 0.12V
VBAT
VSYSREG Comparator
VSYS
VMINSYS
Good Battery
Circuit
VBAT
VBATGD
Hi-Z Mode
I2C
Enable
IBATSHRT
VBATSC Comparator
VBAT
VBATSHRT
Supplement Comparator
Interface
VBAT
VBSUP
USB
Adapter
Detection
1.5A/USB100
VBOVP Comparator
VBAT
VBATOVP
Circuitry
DISABLE
VSYS
1C/0.5C
bq24160/2/3
TS COLD
TS COOL
STAT
INT
VBATREG â 0.14V
DISABLE
CHARGE
CONTROLLER
with Timers (160/1/3)
TS WARM
TS HOT
Q2
Q3
Q4
Hi-Z Mode
VDRV
BOOT
SW
PGND
SYS
BAT
BGATE
TS
Copyright © 2011â2014, Texas Instruments Incorporated
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Product Folder Links: bq24160 bq24160A bq24161 bq24161B bq24163 bq24168
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