12-Watt Magnetically Resistant Quasi-Resonant Flyback Reference Design PMP21462 (ACTIVE)

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Key Document

Description

This reference design is a quasi-resonant flyback developed to be resistant to large magnetic fields near the transformer. It has a regulated 4 Volt output that can handle up to 2 A of current and secondary 10 V output that can handle 0.4 A.

Features
  • 90 VAC to 490 VAC input to 4 V/2 A isolated output
  • Secondary output of 10 V/ 400 mA
  • Iron Powder Transformer for improved magnetic resistance
  • Topology designs to run at a low frequency to further increase magnetic resistance

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP21462.1
(Output Voltage 1)
PMP21462.2
(Output Voltage 2)
Vin (Min) (V)9090
Vin (Max) (V)490490
Vout (Nom) (V)410
Iout (Max) (A)2.4
Output Power (W)84
Isolated/Non-IsolatedIsolatedIsolated
Input TypeACAC
TopologyFlyback- Non SyncFlyback- Non Sync

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TLV431A  1% Accuracy Low-Voltage Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
UCC28742  High-Efficiency Flyback Controller With Optocoupler Feedback  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TLV431A Download Download
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Download -
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UCC28742 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 7135 28 Sep 2018
Design files (6)
Title Type Size (KB) Date
ZIP 829 28 Sep 2018
ZIP 402 28 Sep 2018
PDF 619 28 Sep 2018
PDF 107 28 Sep 2018
PDF 59 28 Sep 2018
PDF 123 28 Sep 2018

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