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XT4054 - Standalone Linear Li-Ion Battery Charger

Description

The XT4054 is a complete constant-current /constant -voltage linear charger for single cell lithium-ion batteries.

Its ThinSOT package and low external component count make the XT4054 ideally suited for portable applications.

Features

  • Programmable Charge Current Up to 500mA.
  • No MOSFET, Sense Resistor or Blocking Diode Required.
  • Complete Linear Charger in ThinSOT Package for single Cell Lithium-Ion Batteries.
  • Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating.
  • Charges Single Cell Li-Ion Batteries Directly from USB Port.
  • y.
  • Charge Current Monitor Output for Gas Gauging.
  • Automatic Recharge.
  • Charge St.

📥 Download Datasheet

Datasheet Details

Part number XT4054
Manufacturer Silinktek
File Size 268.07 KB
Description Standalone Linear Li-Ion Battery Charger
Datasheet download datasheet XT4054 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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XT4054 Standalone Linear Li-Ion Battery Charger with Thermal Regulation ■ General Description The XT4054 is a complete constant-current /constant -voltage linear charger for single cell lithium-ion batteries. Its ThinSOT package and low external component count make the XT4054 ideally suited for portable applications. Furthermore, the XT4054 is specifically designed to work within USB power specifications. 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.
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