20W, 100-425VDC, 85% Efficient, Multi-Output, Auxiliary Power Supply Reference Design

(ACTIVE) TIDA-01503

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Key Document

Description

This 20-W multiple output, auxiliary power reference design supports AC/DC industrial power supplies with a wide input voltage range (100-425 VDC). The design achieves a peak efficiency of 85% by using discontinuous conduction mode (DCM) valley-switching of TI’s UCC28704 flyback controller with primary side regulation. The compact design uses a minimum number of components to help protect the system, including output overcurrent and output short circuit. The hardware is tested to meet Conducted Emission norm EN55022 Class A using an external EMI filter.

Features
  • Peak power conversion efficiency of >85% at 400VDC full load
  • Designed for wide operating input voltage range from 100- to 425-V DC
  • Delivers full power of 20 W over the entire operating voltage range
  • Configurable outputs: 15V (primary referred), 5V & 15V (isolated)
  • Low stand-by power of <100mW
  • Compact form-factor to achieve high power density solutions: 40mm × 40mm

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (1)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28704  Off-Line Constant-Voltage Constant-Current Flyback Controller With Primary-Side Regulation (PSR)  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1189 28 Sep 2017 336
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 639 27 Sep 2017 52
ZIP 2641 27 Sep 2017 84
PDF 357 27 Sep 2017 61
PDF 138 27 Sep 2017 47
PDF 54 27 Sep 2017 119
PDF 237 27 Sep 2017 281


Support & Training

TI E2E Community

As a member of  myTI you can join the TI E2E™ Community  where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Content is provided "AS IS" by the respective TI and Community contributors and does not constitute TI specifications. See  Terms of use.

Engage in the Community

Blogs

Wikis

Visit the TI Wiki