Linear Charger

Specification For Download
LP28055-Linear Charger
1000Charge Current(mA):
4.3-28Input Voltage(V):
-Input OVP(V):
1Cells:
CC/CVMode:
YesTemperature Monitor:
2State Monitor:
1A Large Current,Low Cost,OTP,OVP,OCPSpecial Features:
ESOP8Package:


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



General Description

The LP28055 is a complete constant-current/ constant voltage linear charger for single cell lithium-ion batteries. Its ESOP8 package and low external component count make the LP28055 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 LP28055 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 LP28055 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
PDA/MID
Bluetooth Applications

 


Features
 

input voltage up to 28V
input Over Voltage Protection:7V
Short-circuit protection
Programmable Charge Current Up 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
Programmable Charge Termination AC Adapter Power
Good Indicator
ESOP8 Package
RoHS Compliant and 100% Lead (Pb)-Free
 

Marking Information
 

Please see specification. 
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