BL4054 Datasheet - Shanghai Belling

BL4054 800mA Standalone Linear Li-Ion Battery Charger

The BL4054/BL4054B 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 .

BL4054 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 Sin

BL4054_ShanghaiBelling.pdf