bq24083

bq24083 www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009 1A, LI-ION, LI-POL BATTERY CHARGER WITH ADJUSTABLE BATTERY VOLTAGE FEATURES 1 2 Pin Select Battery Voltage (4.06V/4.2V) Integrated Power FET and Current Sensor for Up to 1A Charge Applications From AC Adapter Precharge Conditioning With Safety Timer Charge and Power-Good Status Output Automatic Sleep Mode for Low Power Consumption Integrated Charge-Current Monitor Fixed 7-Hour Fast Charge Safety Timer Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-Pol Packs in Space-Limited Portable Applications Small 3-mm × 3-mm SON Package APPLICATIONS PDAs, MP3 Players Digital Cameras Internet Appliances Smartphones DESCRIPTION The bq24083 is highly integrated and flexible Li-Ion linear charge device targeted at space-limited charger applications. It offers an integrated power FET and current sensor, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device. An external resistor sets the magnitude of the charge current. The bq24083 has an option of two output battery charge voltages: 4.06 V and 4.2 V. The device charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer ...