Introduction
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SLUUBS3A – October 2017 – Revised January 2018
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UCC28056EVM-296 Evaluation Module
ADVANCE INFORMATION
1
Introduction
The purpose of the UCC28056EVM-296 (EVM) is to aid in evaluation of the UCC28056 transition mode
boost PFC converter. The EVM is a stand-alone PFC converter designed to operate with 85 to 265 V
RMS
,
47 to 63 Hz, AC input and up to 165-W DC output from 90 VAC to 265 VAC and 140 W at 85 VAC. The
EVM can be used as it is delivered without additional work, to evaluate a transition mode boost PFC
converter. This user’s guide provides basic evaluation instruction from a viewpoint of system operation of
a stand-alone PFC boost power converter.
2
Description
2.1
Typical Applications
This EVM is used in the following applications:
•
AC adapter front end
•
Set top box
•
Desktop computing
•
Gaming
•
Electronic lamp ballast
•
Digital TV
•
Entry-level server and web server
2.2
Features
This EVM has the following features:
•
Unified algorithm for working in critical mode (CRM) and discontinuous conduction mode (DCM) with a
high power factor across the entire operating range
•
AC input voltage from 85 to 265 V
RMS
•
AC line frequency from 47 to 63 Hz
•
Up to 165-W output power
•
High efficiency
•
TM, DCM control gives improved light-load efficiency
•
Burst mode for reduced standby consumption
•
Non-linear gain gives improved transient response
•
User-adjustable valley switching
•
Robust full-featured protection including overtemperature protection, brown-out protection, output
overvoltage, cycle-by-cycle overcurrent, and gross overcurrent protections
•
Test points to facilitate device and topology evaluation
