Interleaved PFC Pre-Requlator User's Guide

1 Description
2 Thermal Requirements
3 Electrical Characteristics
User's Guide
SLUU280B – May 2007 – Revised July 2008
UCC28060EVM 300-W Interleaved PFC Pre-Regulator
The UCC28060 is a dual-phase, transition-mode Power Factor Correction (PFC) pre-regulator. The
UCC28060EVM is an evaluation module (EVM) with a 390-V, 300-W, dc output that operates from a
universal input of 85 V
RMS
to 265 V
RMS
and provides power-factor correction.
Throughout this document, the acronym EVM and the phrases evaluation board and evaluation module
are synonymous with the UCC28060EVM.
The pre-regulator uses the UCC28060 PFC interleaved controller to shape the input current wave to
provide power-factor correction. This device uses TI’s Natural Interleaving™ technology to interleave
boost phases.
This user’s guide provides the schematic, List of Materials list, assembly drawing for a single-sided printed
circuit board application, and test set-up information necessary to evaluate the UCC28060 in a typical
PFC application.
This evaluation module will operate up to 300 W without external cooling in ambient tempatures of 25 ° C.
Table 1 summarizes the electrical specifications of the UCC28060EVM.
Table 1. UCC28060EVM Electrical Specifications
UCC28060EVM
PARAMETER CONDITIONS UNITS
MIN TYP MAX
RMS input voltage (ac line) 85 265 V
RMS
Output voltage, V
OUT
390 V
Line frequency 47 63 Hz
Power factor (PF) at maximum load 0.9
Output power 300 W
AC line = 115 V 94%
Full load efficiency
AC line = 230 V 97%
Natural Interleaving is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
SLUU280B – May 2007 – Revised July 2008 UCC28060EVM 300-W Interleaved PFC Pre-Regulator 1
Submit Documentation Feedback