bq24061

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...