AiT Semiconductor Battery Management IC_A4055E5R-IC-589-D

Get the high-quality BATTERY MANAGEMENT_A4055E5R at the best price in India.

The A4055 is a complete constant-current / constant-voltage linear charger for single cell lithium-Ion batteries. 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 programmed externally with a single resistor. The A4055 automatically terminates the charge cycle when the charge current drops to 1/10 the programmed value after the final float voltage is reached.

When the input supply (wall adapter or USB supply) is removed, the A4055 automatically enters a low current state, dropping the battery drain current to less than 2μA. The A4055 can be put into shutdown mode, reducing the supply current to 25μA. 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.

BATTERY MANAGEMENT_A4055E5R Features:-
Programmable Charge Current Up to 800mA
No MOSFET, Sense Resistor or Blocking Diode Required
Preset 4.2V Charge Voltage with ±1% Accuracy
Charge Current Monitor Output for Gas Gauging
Thermal Regulation Maximizes Charge Rate Without Risk of Overheating
Charges Single Cell Li-Ion Batteries directly from USB Port
Over-Voltage Protect
Automatic Recharge
Charge Status Output Pin
C/10 Charge Termination
25μA Supply Current in Shutdown
2.9V Trickle Charge Threshold
Soft-Start Limits Inrush Current
Available in SOT-25 Package

BATTERY MANAGEMENT_A4055E5R Applications:-
Cellular and Smart Phones
Charging Docks and Cradles
Blue Tooth Applications
PDAs
MP3/MP4/MP5 Players

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Attachment:-
BATTERY MANAGEMENT_A4055E5R Datasheet

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