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XT2051 - 1.0A Compatible With The USB Interface Linear Battery Management

Description

The XT2051 is a constant- current / constant- voltage charger circuit for single cell lithium-ion batteries.

The device includes an internal power transistor, does not need external current sense resistor and blocking diode in applications.

Features

  • Programmable charge current up to 1A.
  • No MOSFET, sense resistor or blocking diode required.
  • Complete linear charger in small 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.
  • Monitor output charge current.
  • default charging voltage of 4.2V1%, can be adjusted by the.

📥 Download Datasheet

Datasheet Details

Part number XT2051
Manufacturer Silinktek
File Size 315.67 KB
Description 1.0A Compatible With The USB Interface Linear Battery Management
Datasheet download datasheet XT2051 Datasheet

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Full PDF Text Transcription

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XT2051 1.0A Compatible With The USB Interface, Linear Battery Management Chip ■ General Description The XT2051 is a constant- current / constant- voltage charger circuit for single cell lithium-ion batteries. The device includes an internal power transistor, does not need external current sense resistor and blocking diode in applications. XT2051 requires minimal external components, and meet the USB bus specification, is very suitable for portable applications in the field. Thermal modulation circuit can control the internal chip temperature in a safe range when the device power dissipation be relatively large or the ambient temperature be higher. Within a fixed constant charge voltage 4.2V, can also be adjusted by an external resistor. Charge current set by an external resistor.
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