部品番号
LP4068
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Lowpower Semiconductor inc
LP4068 データシート - Lowpower Semiconductor inc
Lowpower Semiconductor inc
General Description
The LP4068 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 LP4068 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.
Features
✦ Input Voltage up to 28V
✦ Input Over Voltage Protection： 7V
✦ Short-circuit protection
✦ Programmable Charge Current up to 800mA
✦ 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
✦ SOT23-5 /TDFN-8(2mm*3mm)Package
✦ RoHS Compliant and 100% Lead (Pb)-Free
Applications
✧ Portable Media Players/Game
✧ Power Bank
✧ Bluetooth Applications
✧ PDA/MID
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