Universal AC Input, 10.5V/1.8A DC Output, Isolated Synchronous Flyback Converter Reference Design PMP10164 (ACTIVE)

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Key Document

Description

The PMP10164 reference design supplies 10.5V@1.8A from universal AC mains; the isolated Flyback topology is the most used for low power range due to single magnetic component. Since the load is a power line communication chip, a fixed frequency modulation has been chosen. The controller LM5021 performs also pulse skip mode thus improving efficiency at light load. A synchronous rectification controller UCC24630 has been employed to increase the efficiency and the thermal performance.

Features
  • LM5021 based Isolated Flyback in constant switching frequency delivering 10.5V@1.8A
  • >87% efficiency at full load and 230Vac
  • Synchronous rectification with UCC24630 improves efficiency and thermal performance
  • Output overvoltage protection with latch, in case of loop opto fail
  • This design is tested and includes test results and CAD files

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP10164.1
(Output Voltage 1)
Vin (Min) (V)90
Vin (Max) (V)265
Vout (Nom) (V)10.5
Iout (Max) (A)1.8
Output Power (W)18.9
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- Synchronous

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19533Q5A  100V, 7.8mOhm, SON5x6 N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy Not Available
LM5021  AC-DC current mode PWM controller  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
TL431  Adjustable precision shunt regulator  Voltage references  Sample & Buy Not Available
UCC24630  Synchronous Rectifier Controller With Ultra Low Standby Current  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)
CSD19533Q5A VSONP (DQJ)| 8 Download
LM5021 Download Download
Download Download
TL431 Download Download
Download Download
Download -
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Download -
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UCC24630 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 984 28 Sep 2015
Design files (4)
Title Type Size (KB) Date
ZIP 1004 28 Sep 2015
PDF 1477 28 Sep 2015
PDF 129 28 Sep 2015
PDF 390 28 Sep 2015

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