1A SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT
bq2406x
www.ti.com
SLUS689A – JUNE 2006 – REVISED OCTOBER 2006
1A SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC WITH ...
Description
bq2406x
www.ti.com
SLUS689A – JUNE 2006 – REVISED OCTOBER 2006
1A SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC WITH THERMAL REGULATION
FEATURES
Ideal for Low-Dropout Designs for Single-Cell Li-Ion or Li-Pol Packs in Space Limited Applications
Integrated Power FET and Current Sensor for up to 1-A Charge Applications
Reverse Leakage Protection Prevents Battery Drainage
±0.5% Voltage Regulation Accuracy Thermal Regulation Maximizes Charge Rate Charge Termination by Minimum Current and
Time
Precharge Conditioning With Safety Timer Status Outputs for LED or System Interface
Indicate Charge, Fault, and Power Good Outputs
Short-Circuit and Thermal Protection Automatic Sleep Mode for Low Power
Consumption
Small 3×3 mm MLP Package Selectable Battery Insertion and Battery
Absent Detection
Input Overvoltage Protection – 6.5 V and 10.5 V Options
APPLICATIONS
PDA, MP3 Players, Digital Cameras Internet Appliances and Handheld Devices
DESCRIPTION
The bq2406x series are highly integrated Li-Ion and Li-Pol linear chargers, targeted at space-limited portable applications. The bq2406x series offers a variety of safety features and functional options, while still implementing a complete charging system in a small package. The battery is charged in three phases: conditioning, constant or thermally regulated current, and constant voltage. Charge is terminated based on minimum current. An internal programmable charge timer provides a backup safety feature for cha...
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