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L6983I:絶縁型スイッチング電源、ゲート・ドライバ向け38V、10W同期整流絶縁バック・コンバータ

 

 

Specifically designed for isolated buck topology, the L6983I’s primary output voltage can be accurately adjusted, while the isolated secondary output is derived by using a given transformer ratio.

The switching frequency can be programmed in the 200 kHz - 1 MHz range with optional spread spectrum for improved EMC. The Enable (EN) pin provides enable/disable functions and includes an internal voltage divider.

 

Key features

  • 3.5 to 38V operating input voltage
  • Primary output voltage regulation / no optocoupler required
  • 200 kHz to 1 MHz programmable switching frequency.
  • Stable with low ESR capacitor (min. 2 µF)
  • Internal compensation network

 

  • 2 µA shutdown current
  • Internal soft-start
  • Overvoltage protection
  • Output voltage sequencing

Application examples

igbt Isolated IGBT/SiC MOSFET gate drive supply
on-board-charger OBC (On-board charger) for HEV/EV
power-management Electric traction systems
e-charger Charging stations
 

 

Recommended resources
 

 

STEVAL-L6983IV1 evaluation board

Based on the L6983I, a 38 V, 10 W synchronous iso-buck converter designed for isolated applications.

eDSim: fast and powerful electrical simulation software for SMPS and analog ICs

Design your analog circuit, get a quick preview with fully annotated schematic and BOM, and then run the electrical simulation through eDSim for fast and accurate simulations and reliable design validation.

 

 

Switching Converters (DC-DC) Quick reference guide

This guide provides developers with an overview of our most commonly used switching regulators and will help identify the most appropriate solution for each type of application.

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