LP28013/A-Linear Charger

产品型号 充电电流(mA) 输入电压(V) 电池电压(V) 电池节数 工作模式 温度检测 状态指示 特征 封装 规格书
LP28013/A 300-1000 4.5-28 4.2,4.35,4.4 1 CC/CV Yes 2 CTC,OTP,Reverse Protection,Full voltage±1%Accuracy DFN-10 3*3mm


1A Single Chip Li-Ion and Li-Polymer Charger




General Description

The LP28013 is a complete constant-current/ constant voltage linear charger for single cell lithium-ion battery. Its TDFN-10 package and low external component count make the LP28013 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/4.35V/4.4V, and the charge current can be ISET programmed externally with a single resistor. When the input supply is removed, the LP28013 automatically enters a low current state, dropping the battery drain current to less than < 1μA. Other features include charge current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage.
 
 


General Description

The LP28013A is a complete constant-current/ constant voltage linear charger for single cell lithium-ion battery. Its TDFN-10 package and low external component count make the LP28013A 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. When the input supply is removed, the LP28013A automatically enters a low current state, dropping the battery drain current to less than < 1μA. Other features include charge current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage.
 

Applications
 

 Portable Media Players/Game
 Power Bank
 Bluetooth Applications
 PDA/MID

 


Features
 

 Programmable Charge Current Up to 500mA
 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
 2.9V Trickle Charge Threshold
 C/10 Charge Termination
 Output OCP
 Charging OTP
 Package in SOT23-5
 

Marking Information
 

Please see specification. 
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