uP8001

uP8001 Li-ion/Li Polymer Battery Charger in VDFN and VQFN Packages General Description Features The uP8001 is a highly integrated single-cell Li-ion or LiPolymer battery charger specifically designed to work with AC adaptor or USB port. The uP8001 charges battery with a minimum current when the battery voltage is lower than 2.8V. The charger works at constant current mode when the battery voltage is between 2.8V and 4.2V, the charge current is programmable up to 2A by an external resistor. The charge works at constant voltage mode when the battery voltage is 4.2V. When the input voltage is removed, the uP8001 automatically enters a low quiescent current sleep mode, dropping the battery drain current to 1uA. Other features include thermal foldback charge current, NTC thermistor interface and automatic recharge. The uP8001 is available in thermal-enhanced and space-saving VQFN and VDFN packages. Applications † Cellular Phones † Handheld Computers and PDAs † Charging Docks and Cra...