The LP28014SE device is a highly advanced linear charger for single cell Li-Ion and Li-Polymer battery. The device is ideally suited for portable applications since the DFN-8 package and low number of external components required.The device employs a full charge algorithm with trickle current/constant current/constant voltage mode, charge termination and recharge. The device supports charge current up to 1A programmed by one external resistor. The device can withstand an input voltage up to 40V which can protect from the accidental insertion of high voltage adaptor. The device can withstand a BAT voltage up to 15V which is suited for power battery application. Without input supply, the battery reverse current is less than 0.1µA.The device provides various safety features for battery charging, including input-over-voltage protection, battery reverse connection protection and device junction temperature-limit protection by limiting the charge current, which is implemented by an internal thermal fold back regulation loop.
The LP28014SE is available in a DFN-8 (2mmx2mm) package.