700-W interleaving transition-mode PFC reference design
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Key Document


This reference design uses a UCC28064A, Natural Interleaving(TM) transition-mode power factor correction (PFC) controller to provide a universal AC input to 380-V/700-W conversion. This design achieves 98% peak efficiency at the 230 VAC input and the light-load efficiency is maintained at a level close to full-load efficiency because of the burst mode operation provided by UCC28064A. This is an advantageous feature for customers who want to meet certain standards (i.e.: 80PLUS) with light-load efficiency requirements.

  • Interleaving transition-mode PFC with improved light load efficiency
  • Universal AC input, 385-V/700-W output
  • Over 94.5% efficiency from 5% load to 100% load at 115VAC input
  • Over 96% efficiency from 5% load to 100% load at 230VAC input
  • Achieve 98% peak efficiency at 230VAC input

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Design Files

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(Output Voltage 1)
Vin (Min) (V)90
Vin (Max) (V)264
Vout (Nom) (V)390
Iout (Max) (A)1.8
Output Power (W)702
Input TypeAC
TopologyBoost- PFC

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
UCC28064A  Natural Interleaving™ transition-mode PFC controller with high light-load efficiency  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)
UCC28064A Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1586 05 Nov 2018
Design files (6)
Title Type Size (KB) Date
ZIP 2062 05 Nov 2018
ZIP 1129 05 Nov 2018
PDF 584 05 Nov 2018
PDF 186 05 Nov 2018
PDF 32 05 Nov 2018
PDF 151 05 Nov 2018

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