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SY6953 - 2-4 cell Buck Li-Ion Battery Charger

Datasheet Summary

Description

SY6953 is a wide input, high integrated and high efficiency Buck mode battery charger.

It accepts 428V input and supports 2-4 cells Li-ion and Lipolymer battery.

The charge current up to 2A can be programmed by using the external resistor for different portable applications.

Features

  • Wide Input Voltage Range: 4V to 28V.
  • Constant Voltage Selectable: 4.1V/4.2V/4.35V per Cell.
  • Charge Current up to 2A for 2 Cells Battery.
  • Charge Current up to 1.6A for 3 Cells Battery.
  • Charge Current up to 1.5A for 4 Cells Battery.
  • Programmable VDPM.
  • Programmable Input Current Limit.
  • Programmable Charge Timer.
  • Trickle Current / Constant Current / Constant Voltage Charging Mode.
  • Thermal Regulation.
  • Input Voltage UVLO and OVP Protection.

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Datasheet preview – SY6953

Datasheet Details

Part number SY6953
Manufacturer Silergy
File Size 1.06 MB
Description 2-4 cell Buck Li-Ion Battery Charger
Datasheet download datasheet SY6953 Datasheet
Additional preview pages of the SY6953 datasheet.

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Full PDF Text Transcription

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Application Note: SY6953 High Efficiency, 2-4 cell Buck Li-Ion Battery Charger Advanced Design Specification General Description SY6953 is a wide input, high integrated and high efficiency Buck mode battery charger. It accepts 428V input and supports 2-4 cells Li-ion and Lipolymer battery. The charge current up to 2A can be programmed by using the external resistor for different portable applications. It also has a programmable charge timeout and adaptive input power limit for safety battery charge operation. It consists of 30V rating reverse blocking FET and power switching FETs with low ON resistance to achieve high charge efficiency and simple peripheral circuit design. SY6953 along with small QFN3x3-18 footprint provides small PCB area application.
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