BQ24160 Datasheet, PDF (1/44 Pages) Texas Instruments – 2.5A, Dual-Input, Single Cell Switchmode Li-Ion Battery Charger with Power Path

bq24160, bq24161
bq24163, bq24168
www.ti.com
SLUSAO0A – NOVEMBER 2011 – REVISED MARCH 2012
2.5A, Dual-Input, Single Cell Switchmode Li-Ion Battery Charger with Power Path
Management and I²C Interface
Check for Samples: bq24160, bq24161, bq24163, bq24168
FEATURES
1
•2 High-Efficiency Switch Mode Charger with
Separate Power Path Control
– Make a GSM Call with a Deeply Discharged
Battery or No Battery
– Instantly Start Up System from a Deeply
Discharged Battery or No Battery
• Dual Input Charger
• Highly Integrated Battery N-Channel MOSFET
Controller for Power Path Management
– 20 V input rating, with Overvoltage
Protection (OVP)
– 6.5 V for USB Input
– 10.5 V for IN input (bq24160/1/3)
– 6.5 V for IN input (bq24168)
– Integrated FETs for Up to 2.5A Charge Rate
– Up to 2.5 A from IN Input (input current
limit)
– Up to 1.5 A from USB Input (input
current limit)
• Safe and Accurate Battery Management
Functions
– 0.5% Battery Regulation Accuracy
– 10% Charge Current Accuracy
• Charge Parameters Programmed Using I²C™
Interface
– Charge Voltage, Current, Termination
Threshold, Input Current Limit, V_INDPM
Threshold
• Voltage Based, NTC Monitoring Input
– JEITA Compatible (bq24160/3/8)
• Thermal Regulation Protection for Output
Current Control
• Low Battery Leakage Current, BAT Short-
Circuit Protection
• Soft-Start Feature to Reduce Inrush Current
• Thermal Shutdown and Protection
• Available in small 2.8mm × 2.8mm 49-ball
WCSP or 4mm × 4mm QFN-24 Packages
APPLICATIONS
• Handheld Products
• Portable Media Players
• Portable Equipment
• Netbook and Portable Internet Devices
DESCRIPTION
The bq24160/ bq24161/ bq24163/ bq24168 are highly
integrated single cell Li-Ion battery charger and
system power path management devices targeted for
space-limited, portable applications with high capacity
batteries. The single cell charger has dual inputs
which allow operation from either a USB port or
higher-power input supply (i.e., AC adapter or
wireless charging input) for a versatile solution. The
two inputs are fully isolated from each other and are
easily selectable using the I²C interface.
APPLICATION SCHEMATIC
AC Adapter or
Wireless Power
VBUS
D+
D–
GND
IN
PMIDI
USB
PMIDU
SW
BOOT
SYS
System
Load
HOST
V_SYS
D+
D–
SDA
SCL
INT
PGND
BAT
TS
DRV
TEMP PACK+
+
–
PACK–
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
I²C is a trademark of NXP Semiconductor.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2012, Texas Instruments Incorporated