bq25040

bq25040 www.ti.com ...................................................................................................................................................... SLUS910B – MARCH 2009 – REVISED MARCH 2009 1.1A, Single-Input, Single Cell Li-Ion Battery Charger With 50mA LDO and 2.3A Production Test Support FEATURES 1 30V Input Rating, with Overvoltage Protection (OVP) Input Voltage Dynamic Power Management Feature 50mA Integrated Low Dropout Linear Regulator (LDO) 1% Charge Voltage Regulation Accuracy 10% Charge Current Accuracy Single-Input Interface Selects USB 100mA, 500mA or User-Programmable Maximum Input Current Limit 4.2V at 2.3A Production Test Mode Thermal Regulation and Thermal Shutdown Protection for Output Current Control Soft-Start Feature to Reduce Inrush Current Status Indication – Power Good and Charging/Done Available in Small 2mm × 3mm DFN-10 Package APPLICATIONS Mobile Phones Smart Phones Portable Media Players Portable Navigation Devices Low-Power Handheld Devices DESCRIPTION The bq25040 is an integrated Li-ion linear battery charger targeted at space-limited portable applications. It operates from either a USB port or AC adapter and charges a single cell Li-Ion battery with up to 1.1A of charge current. The bq25040 has a single power output that charges the battery. A system load can be placed in parallel with the battery. The charge current is programmed using the ISET and EN/SET inputs. The input current limit...