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PMP31288

7.8W wide AC input non-isolated high-side buck reference design

PMP31288

Design files

Overview

The is an ultra wide input offline high-side buck power supply reference design that provides an 13V output at a maximum of 0.6A. The input accepts a voltage range of 85 VAC to 485 VAC. The reference design uses the UCC28750 current-mode flyback controller with opto-coupler feedback. The design is developed to be resistant to magnetic fields up to 200mT near the inductor.

Features
  • Fixed-frequency operation for full load
  • Frequency foldback and burst mode for improved light-load efficiency
  • Very wide input voltage range: 85VAC to 485VAC
  • Over-voltage and under-voltage lockout
  • Output short-circuit (OSC) protection
  • Cycle-by-cycle peak over-current limit
  • High magnetic resistance
Output voltage options PMP31288.1
Vin (Min) (V) 85
Vin (Max) (V) 485
Vout (Nom) (V) 13
Iout (Max) (A) .6
Output Power (W) 7.8
Isolated/Non-Isolated Non-Isolated
Input Type AC
Topology Buck
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

PDF | HTML
TIDT390.PDF (1504 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDMCW6.PDF (285 K)

Detailed schematic diagram for design layout and components

TIDMCW7.PDF (128 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDMCW8.PDF (228 K)

Detailed overview of design layout for component placement

TIDMCX0.ZIP (2488 K)

Files used for 3D models or 2D drawings of IC components

TIDCGO9.ZIP (428 K)

Design file that contains information on physical board layer of design PCB

TIDMCW9.PDF (860 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC28750Current-mode flyback controller with secondary-side regulation (SSR) for offline applications

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 7.8W Wide AC Input Non-Isolated High-Side Buck Reference Design PDF | HTML May 06, 2024

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