TIDA-00618

8.5W Dual Output (5V/12V) Universal Input AC/DC Isolated Flyback Reference Design with PSR

TIDA-00618

Design files

Overview

The TIDA-00618 reference design is a Primary Side Regulation switcher which provides isolated dual outputs, 5V and 12V rails, with DC stacking of the secondaries to provide output voltage regulation that is equivalent to opto-coupler based solution.

Low system parts count and built in advanced protection features result in a cost-effective solution with an average efficiency of nearly 75% at 230V

Features
  • Isolated 5V and 12V output at 500mA maximum
  • Conducted EMI compliant
  • 100ms typical start-up time
  • Primary side control eliminates need for optocoupler
  • Input under & Output over voltage protection
  • Primary over current protection
  • Controlled start up and restart after fault Protection
Output voltage options TIDA-00618.1 TIDA-00618.2
Vin (Min) (V) 85 85
Vin (Max) (V) 265 265
Vout (Nom) (V) 5 12
Iout (Max) (A) .5 .5
Output Power (W) 2.5 6
Isolated/Non-Isolated Isolated Isolated
Input Type AC AC
Topology Flyback- DCM Flyback- DCM
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUAD0.PDF (813 K)

Reference design overview and verified performance test data

TIDRG76.PDF (237 K)

Detailed schematic diagram for design layout and components

TIDRG77.PDF (30 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRG78.PDF (106 K)

Detailed overview of design layout for component placement

TIDCAP0.ZIP (253 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

UCC28911700V Flyback switcher with constant-voltage constant-current and primary-side regulation

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide TIDA-00618 Test Results Jul. 28, 2015
Technical article Designing multiple output converters with primary side sensing PDF | HTML Aug. 04, 2015

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