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User's Guide
SLUU512–August 2011
UCC28063EVM-723 300-W Interleaved PFC Pre-Regulator
The UCC28063 is a dual-phase, transition-mode Power Factor Correction (PFC) pre-regulator. The
UCC28063EVM-723 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 UCC28063EVM.
1 Description
The pre-regulator uses the UCC28063 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, assembly drawing for a single-sided printed
circuit board application, and test set-up information necessary to evaluate the UCC28063 in a typical
PFC application.
2 Thermal Requirements
This evaluation module will operate up to 300 W without external cooling in ambient tempatures of 25°C.
3 Electrical Characteristics
Table 1 summarizes the electrical specifications of the UCC28063EVM-723.
Table 1. UCC28063EVM-723 Electrical Specifications
UCC28063EVM
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.
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SLUU512–August 2011 UCC28063EVM-723 300-W Interleaved PFC Pre-Regulator
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