The LP4072 is highly integrated Single-Cell linear charger, it offers integrated MOSFET, high-accuracy voltage regulation, temperature regulator, charge termination and charge indicator.The battery is charged in three phases: trickle current, constant current and constant voltage.it automatically recharge if battery voltage falls below an internal recharge voltage threshold.
The charger supports charge current up to 1A, the device accepts an input voltage up to 28V, but it is disabled while the input voltage exceeds the input over voltage protection threshold, typically 7V. And accepts a battery voltage up to 15V, which designed for protect the chip from over-shoot voltage in single-cell LI-on/Li-Pol application.