TI Home >   TI Designs >   Power management >   Primary-Side Regulated Flyback with 85 to 265VAC Input (12V @ 1A) Reference Design

Primary-Side Regulated Flyback with 85 to 265VAC Input (12V @ 1A) Reference Design PMP8780 (ACTIVE)

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

The PMP8780 reference design uses the UCC28700 primary-side regulated flyback controller to generate a 12V/1A output from a univeral AC input. The valley switching of the UCC28700 allows this low-cost design to achieve an average efficiency over 83%; no load losses are less than 40mW.

Features
  • Over 83% average efficiency
  • Primary side regulation eliminates optocoupler and error amplifier for a low cost solution
  • Meets Class B conducted EMI emissions

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

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

Download Design Files
Parametrics
 PMP8780.1
(Output Voltage 1)
Vin (Min) (V)85
Vin (Max) (V)265
Vout (Nom) (V)12
Iout (Max) (A)1
Output Power (W)12
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- DCM
Flyback- Quasi Resonant

Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 2590 07 Oct 2015
Design files (3)
Title Type Size (KB) Date
PDF 54 07 Oct 2015
PDF 79 07 Oct 2015
PDF 122 07 Oct 2015

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles