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