The LP4077 device is a highly advanced linear charger for single cell Li-Ion and Li-Polymer batteries. The device is ideally suited for portable applications due to a small DFN-6 package and low number of external components required.
The device employs a full charge algorithm with trickle current mode, constant current (CC) mode, constant voltage (CV) mode, charge termination and automatic recharge. The device supports charge current up to 300mA, programmed by an external resistor.Without an input supply, the battery leakage current is only 10nA when ambient temperature is 25°C， so it can save energy and improve standby time.The device provides input under voltage lockout (UVLO) and thermal regulation foldback protection that is implemented by reducing the charge current while the junction temperature reaches 125°C.The LP4077 is available in a DFN-6 (1mmx1mm)package.
