LP28014-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
LP28014 1000 4.5-40 4.2,4.3,4.35 1 CC/CV - 2 OVP,OCP,OTP,CTC,IBF,±5%Current Accuracy,±1%voltage Accuracy DFN-8

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

General Description

The LP28014 is a complete constant-current/ constant voltage linear charger for single cell lithium-ion battery. Its TDFN-8 package and low external component count make the LP28014 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 LP28014 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.


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



 input voltage up to 28V
 input Over Voltage Protection:7V
 Short-circuit protection
 Programmable Charge Current:300mA to 1000mA
 < 1μA Battery Reverse Current
 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
 TDFN-8 2mmx2mm Package
 RoHS Compliant and 100% Lead (Pb)-Free

Marking Information

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