BQ24165 Datasheet, PDF (1/35 Pages) Texas Instruments – 2.5A, Dual-Input, Single Cell Switch Mode Li-Ion Battery Charger with Power Path

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bq24165
bq24166
bq24167
SLUSAP4A – DECEMBER 2011 – REVISED MARCH 2012
2.5A, Dual-Input, Single Cell Switch Mode Li-Ion Battery Charger with Power Path
Management
Check for Samples: bq24165 , bq24166, bq24167
FEATURES
1
• High-Efficiency Switch Mode Charger with
Separate Power Path Control
– Make a GSM Call with a Deeply Discharged
Battery or No Battery
– Instantly Startup System from a Deeply
Discharged Battery or No Battery
• Dual Input Charger
– 20V Input Rating, With Over-Voltage
Protection (OVP)
– 6.5V for USB Input
– 10.5V for IN Input
– Integrated FETs for Up to 2.5A Charge Rate
– Up to 2.5A from IN Input
– Up to 1.5A from USB Input
• Highly Integrated Battery N-Channel MOSFET
Controller for Power Path Management
• Safe and Accurate Battery Management
Functions
– 0.5% Battery Regulation Accuracy
– 10% Charge Current Accuracy
• Adjustable Charge Current, Input Current
Limit, and VINDPM Threshold (for IN input)
• Easy JEITA Implementation
– Charge Parameter Selector Inputs (CE1,
CE2) for (bq24165)
• Voltage-based, NTC Monitoring Input (TS)
– Standard Temperature Range (bq24166)
– JEITA Compatible (bq24167)
• 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 x 2.8mm 49-ball
WCSP or 4mm x 4mm QFN-24 Packages
APPLICATIONS
• Handheld Products
• Portable Media Players
• Portable Equipment
• Netbook and Portable Internet Devices
DESCRIPTION
The bq24165, bq24166 and bq24167 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
managed by the bq24165/166/167 with the IN input
having precedence.
APPLICATION SCHEMATIC
AC Adapter or
Wireless Power
VBUS
D+
D–
GND
IN
VDPM
PMIDI
USB
PMIDU
SW
BOOT
SYS
System
Load
HOST
IUSB1
IUSB2
IUSB3
CE1
CE2 _{PGND CHG PG}
BAT
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.
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