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FEATURES DESCRIPTION
APPLICATIONS
1
2
3
4
10
9
8
5
IN
GND
OUT
VSS
STAT1
STAT2 7
6
GND
ISET
RSET
bq24080
+
BATTERY PACKPACK+
PACK-
SYSTEM
UDG-02184
SYSTEM
INTERFACE
VDC
GND
AC
ADAPTER
CE
PG
bq24080
SLUS698B – MARCH 2006 – REVISED MAY 2006
SINGLE-CHIP, LI-ION AND LI-POL CHARGER IC
• Small 3 mm × 3 mm MLP Package The bq24080 is a highly integrated and flexible Li-Ion
linear charge device targeted at space-limited• Integrated Power FET and Current Sensor for
charger applications. It offers an integrated powerUp to 1-A Charge Applications From AC
FET and current sensor, high-accuracy current andAdapter
voltage regulation, charge status, and charge• Precharge Conditioning With Safety Timer
termination, in a single monolithic device. An external
• Charge and Power Good (AC Adapter Present resistor sets the magnitude of the charge current.
With Fixed Safety) Status Output The bq24080 charges the battery in three phases:
• Automatic Sleep Mode for Low-Power conditioning, constant current, and constant voltage.
Consumption Charge is terminated based on minimum current. An
internal charge timer provides a backup safety for• Fixed 7-Hour Fast Charge Safety Timer
charge termination. The bq24080 automatically• Ideal for Low-Dropout Charger Designs for
restarts the charge if the battery voltage falls belowSingle-Cell Li-Ion or Li-Pol Packs in
an internal threshold. The bq24080 automaticallySpace-Limited Portable Applications
enters sleep mode when the input supply is
removed.
• PDAs, MP3 Players
• Digital Cameras
• Internet Appliances
• Smartphones
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.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Copyright © 2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.