STMicroelectronics Protects Power Conversion and Gate Driving

By Chad Cox

Production Editor

Embedded Computing Design

April 25, 2023


STMicroelectronics Protects Power Conversion and Gate Driving
Image Credit: STMicroelectronics

Geneva. A new customized 10W isolated-buck IC from STMicroelectronics has been released to protect power conversion and gate driving in IGBTs, SiC, and GaN transistors. The L6983i includes low quiescent current and 3.5V-38V input-voltage range.

The L6983I utilizes an iso-buck topology with no requirements for an optocoupler and contains fewer components than a general isolated flyback converter and saves on BOM and PCB space.

The device enables an adjustable switching frequency from 200kHz to 1MHz with external synchronization and sourcing/sinking up to 4.5A main current. Ideal solutions for the L69831 are industrial automation, small traction systems and charging stations, and isolated safety equipment.

Expanded Features Include:

  • 2µA shutdown current
  • Integrated functions (adjustable soft-start time)
  • Internal loop compensation  
  • Power good indicator
  • Protection from overcurrent and thermal shutdown
  • Selectable spread-spectrum (improves EMC performance)

Visit for more information.

Chad Cox. Production Editor, Embedded Computing Design, has responsibilities that include handling the news cycle, newsletters, social media, and advertising. Chad graduated from the University of Cincinnati with a B.A. in Cultural and Analytical Literature.

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