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EJW3655 - High Efficiency 3A Multi-Cells Li-Ion Battery Charger

General Description

The EJW3655 is a buck boost converter targets HVDC fast charging system.

The EJW3655 supports 1 to 3 cells Li-ion battery, the full charge voltage and charge current can be programmed through external resistor.

The EJW3655 implements the Buck Boost converter with an H-bridge.

Key Features

  • Integrate low RDS(on) power MOSFET.
  • Wide input range:4.2V-20.0V, support 1 to 3 cells battery charge.
  • Full charge voltage: 1.2V-20.0V through external resistor or selectable by BATFB pin EJW3655A(4.2V/cell)/ EJW3655A1 (4.35V/cell).
  • High efficiency buck-boost transition.
  • 450kHz Switching frequency.
  • Programmable charge current, up to 3A.
  • Quiescent current:.

📥 Download Datasheet

Datasheet Details

Part number EJW3655
Manufacturer E-CMOS
File Size 1.10 MB
Description High Efficiency 3A Multi-Cells Li-Ion Battery Charger
Datasheet download datasheet EJW3655 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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High Efficiency,3A, Multi-Cells Li-Ion Battery Charger EJW3655 DESCRIPTION The EJW3655 is a buck boost converter targets HVDC fast charging system. The EJW3655 supports 1 to 3 cells Li-ion battery, the full charge voltage and charge current can be programmed through external resistor. The EJW3655 implements the Buck Boost converter with an H-bridge. The integrated low RDS(on) MOSFET minimizes physical footprint, maximizes charge efficiency. Built-in loop compensation simplifies the circuit and design. PFM is engaged to maintain high efficiency at light load current. EJW3655 guarantees robustness with thermal protection and battery under voltage lockout. Features ◆Integrate low RDS(on) power MOSFET ◆Wide input range:4.2V-20.0V, support 1 to 3 cells battery charge ◆Full charge voltage: 1.