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38W Offline AC/DC Transition Mode Synchronous Flyback Converter Reference Design
PMP10145
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Key Document

Description

The PMP10145 reference design uses the UCC28610 flyback controller for the transition mode flyback topology. It generates an isolated output (9V@4.22A) from a wide AC input voltage range (80VAC - 291VAC). The controller maintains discontinuous mode operation and valley switching over the entire operating range. The UCC24630 synchronous rectifier controller provides good efficiency at heavy loads.

Features
  • Synchronous rectification
  • Wide input voltage range
  • Valley switching

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP10145.1
(Output Voltage 1)
Vin (Min) (V)80
Vin (Max) (V)291
Vout (Nom) (V)9
Iout (Max) (A)4.22
Output Power (W)37.98
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- Quasi Resonant

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19531Q5A  100V, N ch NexFET MOSFET™, single SON5x6, 6.4mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
TL431  Adjustable precision shunt regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
UCC24630  Synchronous rectifier controller With Ultra Low Standby current  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC28610  12-65W green-mode Flyback power supply controller  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)
CSD19531Q5A VSONP (DQJ)| 8 Download
TL431 Download Download
Download Download
Download -
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Download Download
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Download -
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UCC24630 Download Download
UCC28610 Download Download
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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 842 14 Apr 2016
Design files (3)
Title Type Size (KB) Date
ZIP 486 14 Apr 2016
PDF 137 14 Apr 2016
PDF 152 14 Apr 2016

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