BQ24013 Datasheet, PDF (1/21 Pages) Texas Instruments – SINGLE-CHIP, LI-ION CHARGE MANAGEMENT IC FOR HANDHELD APPLICATIONS (bq TINY)

bq24010, bq24012, bq24013, bq24014
www.ti.com
SLUS530F − SEPTEMBER 2002 − REVISED AUGUST 2005
SINGLEĆCHIP, LIĆION CHARGE MANAGEMENT IC FOR
HANDHELD APPLICATIONS (bqTINYt)
FEATURES
D Small 3 mm × 3 mm MLP (QFN) Package
D Ideal for Low-Dropout Designs for Single-Cell
Li−Ion or Li−Pol Packs in Space Limited
Applications
D Integrated Power FET and Current Sensor for
Up to 1-A Charge Applications
D Reverse Leakage Protection Prevents Battery
Drainage
D Integrated Current and Voltage Regulation
D ± 0.5% Voltage Regulation Accuracy
D Charge Termination by Minimum Current
and Time
D Precharge Conditioning With Safety Timer
D Status Outputs for LED or System Interface
Indicates Charge and Fault Conditions
D Battery Insertion and Removal Detection
D Works With Regulated and Unregulated
Supplies
D Short-Circuit Protection
APPLICATIONS
D Cellular Phones
D PDAs, MP3 Players
D Digital Cameras
D Internet Appliances
DESCRIPTION
The bqTINYt series are highly integrated Li-Ion and
Li-Pol linear charge management devices targeted at
space limited portable applications. The bqTINYt
series offer integrated powerFET and current sensor,
reverse blocking protection, high accuracy current and
voltage regulation, charge status, and charge
termination, in a small package.
The bqTINYt charges the battery in three phases:
conditioning, constant current, and constant voltage.
Charge is terminated based on minimum current. An
internal charge timer provides a backup safety feature
for charge termination. The bqTINYt automatically
re-starts the charge if the battery voltage falls below an
internal threshold. The bqTINYt automatically enters
sleep mode when V_CC supply is removed.
In addition to the standard features, different versions
of the bqTINYt offer a multitude of additional features.
These include temperature sensing input for detecting
hot or cold battery packs; power good (PG) output
indicating the presence of valid input power; a
TTL−level charge-enable input (CE) used to disable or
enable the charge process; and a TTL-level timer and
termination enable (TTE) input used to disable or
enable the fast-charge timer and charge termination.
AC ADAPTER
bq24012DRC
1 IN
OUT 10
2 VCC BAT 9
BATTERY
PACK+ ^PACK
+
PACK−
SYSTEM
SYSTEM
INTERFACE
3 STAT1 CE 8
4 STAT2 PG 7
5 VSS ISET 6
RSET
UDG−02106
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.
bqTINY is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2002−2005, Texas Instruments Incorporated