USB compatible battery charger system with integrated power switch for Li-Ion/Li-Polymer

Features
■ Fully integrated solution, with power MOSFET, reverse blocking diode, sense resistor, and thermal protection
■ Charges single-cell Li-Ion batteries from selectable AC adapter or USB input
■ Programmable charge current up to 1 A in AC adapter mode
■ Programmable charging current in USB mode for both high power and low power inputs
■ 4.2 V output voltage with ± 1 % accuracy
■ Linear or quasi-pulse operating mode
■ Closed loop thermal control
■ Programmable end-of-charge current
■ Programmable charge timer
■ (NTC) or (PTC) thermistor interface for battery temperature monitoring and protection
■ Status outputs to drive LEDs or to interface with a host processor
■ Small VFQFPN 16-leads package (3 x 3 mm)

Applications
■ PDAs, GPS and MP3 players
■ USB powered devices
■ Cellular phones
■ Digital still cameras
■ Standalone chargers
■ Wireless appliances