Datasheet4U Logo Datasheet4U.com

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

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.

Key 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.

📥 Download Datasheet

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

📁 Similar Datasheet

Part Number Description Manufacturer
SY69753AL Clock and Data Recovery Micrel Semiconductor
SY69753L 155MBPS CLOCK AND DATA RECOVERY Micrel Semiconductor
SY69754AL Clock and Data Recovery Micrel Semiconductor
SY69952 OC-3/STS-3 CLOCK RECOVERING TRANSCEIVER Micrel Semiconductor
SY604 125MHz TRIGGER PROGRAMMABLE TIMING EDGE VERNIER Micrel Semiconductor

Other Datasheets by Silergy

Part Number Description
SY6952B 2A Single-Cell High Efficiency Switching Charger
SY6912A 2A Multi-Cell High Efficiency Switching Charger
SY6918 High Efficiency Bi-Direction Power Bank Regulator
SY6924 Multi-Cell Li-Ion Battery Charger
SY6926 Bi-directional Regulator

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.

View original datasheet text
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.