The LP4068H 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 the small SOT23-5 package and low number of external components required.
The device employs a full charge algorithm with trickle current, constant current (CC), constant voltage (CV) modes, charge termination and automatic recharge. The device supports charge current up to 800mA, programmed by an external resistor. The device can withstand an input voltage up to 36V, which can protect the charger from the accidental insertion of high voltage and hot plug-in. The device can withstand a BAT voltage up to 14V, which is suited for power battery applications.
Without an input supply, the battery reverse current is only 30nA typical.
The device provides various safety features for battery charging, including input under voltage lockout (UVLO), input over-voltage protection (OVP), battery reverse connection protection, and thermal regulation foldback protection that is implemented by reducing the charge current while the junction temperature reaches 140℃.The LP4068H is available in a SOT23-5 package.
