LP4052
400mA固定电流线性锂电池充电芯片
概述
The LP4063 is a complete constant-current/ constant voltage linear charger for single cell lithium-ion battery.Its SOT23-5 package and low external component count make the LP4063 ideally suited for portable applications. 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 ISET programmed externally with a single resistor.
The LP4063 automatically terminates the charge cycle when the charge current drops to 1/10 setting current value after the final float voltage is reached.When the input supply is removed, the LP4063 automatically enters a low current state, dropping the battery drain current to less than
The charge voltage is fixed at 4.2V, and the charge current can be ISET programmed externally with a single resistor.
The LP4063 automatically terminates the charge cycle when the charge current drops to 1/10 setting current value after the final float voltage is reached.When the input supply is removed, the LP4063 automatically enters a low current state, dropping the battery drain current to less than
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)
300~800
工作电压(V)
4.4~28
过压保护
7
电池电压(V)
4.2
温度检测
-
使能控制
-
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,High Vin voltage,Low size,OTP
封装
SOT23-5
特征
特征
◆ Input Voltage up to 28V
◆ Input Over Voltage Protection：7V
◆ Short-circuit protection
◆ Programmable Charge Current：300mA to 800mA
◆ ◆ Protection of Reverse Connection of Battery
◆ No MOSFET, Sense Resistor or Blocking Diode Required
◆ Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating
◆ SOT23-5 Package
◆ RoHS Compliant and 100% Lead (Pb)-Free
◆ Input Over Voltage Protection：7V
◆ Short-circuit protection
◆ Programmable Charge Current：300mA to 800mA
◆ ◆ Protection of Reverse Connection of Battery
◆ No MOSFET, Sense Resistor or Blocking Diode Required
◆ Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating
◆ SOT23-5 Package
◆ RoHS Compliant and 100% Lead (Pb)-Free
