LP4052
400mA固定电流线性锂电池充电芯片
概述
The LP28013S is a complete constant-current/ constant voltage linear charger for single cell lithium-ion battery. 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/4.35V, and the charge current can be programmed externally by ISET pin with a single resistor.
The LP28013S automatically terminates the charge cycle when the charge current drops to 1/10 setting current value after the final float voltage is reached. Other features include charge current monitor, under voltage lockout, automatic recharge, status pins and battery temperature detection.
The LP28013S automatically terminates the charge cycle when the charge current drops to 1/10 setting current value after the final float voltage is reached. Other features include charge current monitor, under voltage lockout, automatic recharge, status pins and battery temperature detection.
应用
◆ Portable Media Players/Game
◆ Power Bank
◆ Bluetooth Applications
◆ PDA/MID
◆ Power Bank
◆ Bluetooth Applications
◆ PDA/MID
数据参数
数据参数
最大充电电流(mA)
1000
工作电压(V)
4.5~28
过压保护
7
电池电压(V)
4.2/4.35
温度检测
-
使能控制
Y
充满指示
-
充电状态指示
Y
电源状态指示
-
电池节数
1
产品特征/功能
CTC,OTP,Reverse Protection,Full voltage±1%Accuracy
封装
DFN-10 (3*3)
特征
特征
◆ Input Voltage up to 28V
◆ Input Over Voltage Protection：7V
◆ Short-circuit protection
◆ Programmable Charge Current up to 1A
◆ 1µA Battery Reverse Current
◆ Over temperature Sensing Protection
◆ Protection of Reverse Connection of Battery
◆ Constant-Current/Constant-Voltage Operation with Thermal Regulation
◆ TDFN-10 Package
◆ RoHS Compliant and 100% Lead (Pb)-Free
◆ Input Over Voltage Protection：7V
◆ Short-circuit protection
◆ Programmable Charge Current up to 1A
◆ 1µA Battery Reverse Current
◆ Over temperature Sensing Protection
◆ Protection of Reverse Connection of Battery
◆ Constant-Current/Constant-Voltage Operation with Thermal Regulation
◆ TDFN-10 Package
◆ RoHS Compliant and 100% Lead (Pb)-Free
