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XT4052 - Standalone Linear Li-Ion Battery Charger

General Description

The XT4052 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 XT4052 ideally suited for portable applications.

Key Features

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  • 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.
  • Preset 4.2V Charge Voltage with 1% Accuracy.
  • Charge Current Monitor Output for Gas Gauging.
  • Automat.

📥 Download Datasheet

Datasheet Details

Part number XT4052
Manufacturer natlinear
File Size 528.81 KB
Description Standalone Linear Li-Ion Battery Charger
Datasheet download datasheet XT4052 Datasheet

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XT4052 Standalone Linear Li-Ion Battery Charger with Thermal Regulation ■ General Description The XT4052 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 XT4052 ideally suited for portable applications. Furthermore, the XT4052 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.