LP4072QVF线性锂离子电池充电IC_LP4072QVF数据手册

发表时间：2023-11-26 21:35

LP4072QVF.Its SOT23-5 package and low external component count make the LP4072QVF ideally suited for portable applications.Furthermore,the LP4072QVF is specifically designed to work within USB power specifications.No external sense resistor is needed,and no blocking diode is required due to the internal MOSFET architecture.Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature.The charge voltage is fixed at 4.2V,and the charge current can be programmed externally with a single resistor.

The LP4072QVF automatically terminates the charge cycle when the charge current drops to 1.5/10th the programmed value after the final float voltage is reached.When the input supply(wall adapter or USB supply)is removed,the LP4072QVF automatically enters a low current state,dropping the battery drain current to less than 1µA.Other features include charge current monitor,automatic recharge and a status pin to indicate charge termination and the presence of an input voltage.

1,Features

•Programmable Charge Current Up to 600mA

•No MOSFET,Sense Resistor or Blocking Diode Required

•Constant-Current/Constant-Voltage Operation with

Thermal Regulation to Maximize

•Charge Rate Without Risk of Overheating

•4.2V Charge Voltage with±1%Accuracy

•Charge Current Monitor Output for Gas Gauging

•Automatic Recharge

•3V Trickle Charge Threshold

•Charging OTP

•Package in SOT23-5/SOT23-6.

2,Applications

•Portable Media Players/MP3 players

•Cellular and Smart mobile phone

•PDA/DSC

•Bluetooth Applications.