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BL4054 - 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 BL4054
Manufacturer Shanghai Belling
File Size 415.00 KB
Description 800mA Standalone Linear Li-Ion Battery Charger
Datasheet download datasheet BL4054 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.

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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.