Cxlb7247adr cxlb7247dr is a complete single lithium-ion battery with constant current / constant voltage linear charger. The dfn8 package with heat sink at the bottom and the small number of external components make the cxlb7247adr cxlb7247dr the ideal cxlb7247adr cxlb7247dr for portable applications to work with USB power supply and adapter power supply. Because of the internal PMOSFET architecture and anti reverse charging circuit, no external isolation diode is needed. Thermal feedback can adjust the charging current automatically, so as to limit the chip temperature under high power operation or high ambient temperature conditions. The charging voltage is 4.2V and the charging current can be set externally through a resistor. The cxlb7247adr cxlb7247dr automatically terminates the charging cycle when the charging current drops to 1 / 10 of the set value after the final floating charge voltage is reached. When the input voltage (AC adapter or USB power supply) is removed, cxlb7247adr cxlb7247dr moves to a low current state, reducing the battery leakage current to less than 1uA. Cxlb7247adr cxlb7247dr can also be placed in shutdown mode when there is power supply to reduce the power supply current to 55ua. Cxlb7247adr other features of cxlb7247dr include undervoltage blocking, automatic recharging, and two LED status pins to indicate charging and ending