25W 88% Efficiency Multiple Isolated Output Auxiliary Supply Reference Design for AC-DC Power Supply

(ACTIVE) TIDA-00706

Description & Features

Technical Documents

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Key Document

Description

The TIDA-00706 reference design is a 25W, multiple output, auxiliary power supply designed for use in power converters targeted for Server, Telecom and Industrial system applications. This solution is a multiple output flyback converter implemented using the  UCC28700 to provide Constant-Voltage (CV) and Constant-Current (CC) output regulation and uses quasi-resonant valley-switching to achieve higher efficiency. The design is compact and low cost due to minimal component count with all the necessary built-in protections such as output overcurrent and output short circuit.  Hardware is designed and tested to pass EFT requirements and meets low power efficiency performance of Department of Energy (DoE) Level VI standards.  Additionally, the design has a built-in eFuse for  fault isolation on 12V main rail without affecting any other outputs.

Features
  • High average efficiency of 83.8% at 400VDC and 87.2% at 165VDC to meet DoE Level VI and EU CoC Tier-2 energy efficiency norms
  • Peak efficiency of ~86% at 400VDC and ~88% at 165VDC at full load
  • Low stand-by power (<100mW) to help meet no- load condition limits of multiple energy norms (DoE level VI and EU CoC Tier-2)
  • Wide input voltage range from 120VDC to 400VDC to power universal input AC-DC converters
  • Multiple outputs: -7.2/5/12V and isolated 6/7.2/11/12V to address all system rails in one unit

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


  




TI Devices (2)

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
TPS25924  12V, 5A, 28mΩ eFuse with BFET Driver for Reverse Current Protection  Protection, Monitoring and Hot Swap  Sample & Buy View Design Kits & Evaluation Modules
UCC28700  Constant-Voltage, Constant-Current PWM With Primary-Side Regulation  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.

Datasheet (1)
Title Abstract Type Size (KB) Date Views
PDF 1880 12 Dec 2014
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 4949 05 Jul 2016 380
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 2906 10 Mar 2016 37
PDF 127 10 Mar 2016 26
ZIP 284 10 Mar 2016 72
PDF 1554 10 Mar 2016 28
PDF 132 10 Mar 2016 43
PDF 234 10 Mar 2016 145
Related Tools & Software

Reference Designs (1)

Software (1)




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