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BL4054B - 800mA Standalone Linear Li-Ion Battery Charger

General Description

The BL4054/BL4054B is a complete constant current / constant voltage linear charger for single cell Lithium-Ion batteries.

required due to the internal MOSFET architecture.

Key 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.
  • 25A Supply Current in Shutdown.

📥 Download Datasheet

Datasheet Details

Part number BL4054B
Manufacturer BELLING
File Size 415.00 KB
Description 800mA Standalone Linear Li-Ion Battery Charger
Datasheet download datasheet BL4054B Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
BL4054/BL4054B 800mA Standalone Linear Li-Ion Battery Charger with Thermal Regulation in SOT23-5/TSOT23-5 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  25A Supply Current in Shutdown  2.