bq24080

Product Folder Order Now Technical Documents Tools & Software Support & Community bq24080 bq24081 SLUS698F – MARCH 2006 – REVISED MAY 2017 BQ24080, BQ24081 1-A, Single-Chip, Li-Ion and Li-Pol Charger IC 1 Features 1 Integrated Power FET and Current Sensor for Up to 1-A 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 3.00-mm × 3.00-mm VSON Package 2 Applications PDAs, MP3 Players Digital Cameras Internet Appliances Smartphones 3 Description The bq24080 and bq24081 are highly integrated and flexible Li-Ion linear charge devices targeted at space-limited charger applications. They offer an integrated power FET and current sensor, highaccuracy 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 device 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 for charge termination. The device automatically restarts the charge if the battery voltage falls below an internal threshold. The device automatically...