Universal AC Input, 5V/500mA DC output, Non-isolated Flyback Converter Reference Design

(ACTIVE) PMP10175

Description & Features

Technical Documents

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Key Document

Description

This design demonstrates the use of UCC28880 high-voltage switcher to design an Offline Non-Isolated Flyback converter that can supply greater than 100mA output current. Using direct resistor-divider feedback, this design delivers a well-regulated 5V/500mA output with minimal component count.

Features
  • UCC28880 based Non-Isolated Flyback converter
  • Design delivers >100mA output current
  • 5V output, regulated by direct resistor divider feedback network
  • >77% efficiency at 2.5W/5V/500mA
  • Tightly regulated 5V output (<1.5%, at 25C) using direct resistor divider feedback
  • Short-circuit withstand capability of 3 seconds
  • This design is tested and includes test results and CAD files

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Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP10175.1
(Output Voltage 1)
Vin (Min) (V)90
Vin (Max) (V)275
Vout (Nom) (V)5
Iout (Max) (A).5
Output Power (W)2.5
Isolated/Non-IsolatedNon-Isolated
Input TypeAC
TopologyFlyback- Non Sync

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28880  High Voltage Switcher for Non-isolated AC/DC Conversion  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)
UCC28880 Download Download

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Technical Documents

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

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 901 23 Sep 2015 8
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 24 23 Sep 2015 5
PDF 160 23 Sep 2015 4
PDF 104 23 Sep 2015 5
PDF 196 23 Sep 2015 21

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