LP28300A
2A Synchronous Buck Li-ion Charger
概述
The LP28303A is a 2.5A Li-Ion battery charger. It utilizes a 600KHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation and internal MOSFET allow a physically small charger that can be embedded in a wide range of handheld applications. The LP28303Aincludes complete charge termination circuitry,automatic recharge and ±1% 4.2V float voltage.
Battery charge current, charge timeout and end-of-charge indication parameters are set with external components. Additional features include shorted cell detection; temperature qualified charging and overvoltage protection. The LP28303A is available in a low profile ESOP8&DFN-10（3*3mm） package.
Battery charge current, charge timeout and end-of-charge indication parameters are set with external components. Additional features include shorted cell detection; temperature qualified charging and overvoltage protection. The LP28303A is available in a low profile ESOP8&DFN-10（3*3mm） package.
应用
◆ Portable Media Players
◆ Cellular and Smart mobile phone
◆ PDA/DSC
◆ Handheld Battery-Powered Devices
◆ Handheld Computers
◆ Charging Docks and Cradles
◆ Cellular and Smart mobile phone
◆ PDA/DSC
◆ Handheld Battery-Powered Devices
◆ Handheld Computers
◆ Charging Docks and Cradles
数据参数
数据参数
最大充电电流(mA)
2500
工作电压(V)
4.5~7
过压保护(V)
6
电池电压(V)
4.2
温度检测
Y
使能控制
-
充电状态指示
Y
充满状态指示
Y
电池节数
1
产品特征/功能
2.5A Large current,Low size,OTP,OCP
封装
ESOP8/DFN-10(3*3)
特征
特征
◆ Input voltage range 4.5V~5.5V
◆ Dynamic input current allocation for maximumcharging rate
◆ 2.5A Maximum Charge Current
◆ No External MOSFETs and Blocking DiodeRequired
◆ Efficiency up to 90%
◆ Constant-Current/Constant-Voltage Operationwith Thermal Regulation to Maximize ChargeRate Without Risk of Overheating
◆ Optional Battery Temperature Monitoring Beforeand During Charge Automatic Sleep Mode forLow-Power
◆ ESOP8 & DFN-10 package
◆ RoHS Compliant and 100% Lead (Pb)-Free
◆ Dynamic input current allocation for maximumcharging rate
◆ 2.5A Maximum Charge Current
◆ No External MOSFETs and Blocking DiodeRequired
◆ Efficiency up to 90%
◆ Constant-Current/Constant-Voltage Operationwith Thermal Regulation to Maximize ChargeRate Without Risk of Overheating
◆ Optional Battery Temperature Monitoring Beforeand During Charge Automatic Sleep Mode forLow-Power
◆ ESOP8 & DFN-10 package
◆ RoHS Compliant and 100% Lead (Pb)-Free
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