The LP4078 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-10 package and low number of external components required.
The LP4078 device employ a completed charge algorithm with trickle current/constant current/constant voltage mode and charge termination. The device supports charge current up to 1A which can be program 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 20V which is suited for power battery application. Without input supply, the battery reverse current is less than 0.1µA.
The LP4078 device support JEITA temperature standardby an NTC monitoring battery temperature circuit. 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 feedback regulation loop.
The LP4078 is available in a DFN-10 (3x3mm) package.
