STEVAL-ISA054V1: 100W, 3-Ph, 24V and 3.3V or 5V

Summary

This demonstration board introduces a solution for industrial power supplies. It takes advantage of the high voltage Power MOSFET, i.e. 1500 V breakdown voltage, to optimize the operation of the flyback converter based on the primary controller UC3844B.

The demonstration board has been designed and developed in order to address medium power applications. The board features two outputs, 24 V, 5V or 3.3 V, and is able to deliver more than 100 W in total.

The 5 V/3.3 V output is obtained by means of an integrated DC-DC converter based on L5970D, connected to the 24 V output, and adjustable by means of an external voltage divider.

Specifications

Manufacturer STMicroelectronics
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Multi Output
Eval Board Part Number 497-8849-ND
Eval Board Supplier STMicroelectronics
Eval Board Board not Stocked
AC Voltage 230 V
Outputs and Type 2 Isolated
Voltage Out: Highest Current First 24V, 3.3V or 5V
Current Out 4A, 1A (Max 100W)
Output Power 100 W
Efficiency @ Conditions >74%, 230V in, 24V @ 1.5 ~ 4 A
No-load Input Power @ Voltage - Not Given
Features
Switching Frequency 500 kHz
Internal Switch No
Component Count + Extras 69 + 5
Voltage In 180 ~ 265 or 320 ~ 480 VAC
Application / Target Market Set-Top Boxes
Design Author STMicroelectronics
Main I.C. Base Part STW9N150
UC3844B
Date Created By Author
Date Added To Library 2011-03

Support Documents & Media

STW9N150 - Datasheet UC3844B - Datasheet STEVAL-ISA054V1 - User Guide - UM0674

Media

STEVAL_ISA054V1_Schematic.JPG STEVAL_ISA054V1_Board.JPG