Description
2
Description
UCD3138PFCEVM-026 together with UCD3138CC64EVM-030 is an EVM of PFC pre-regulator with digital
control using UCD3138 device in boost converter topology and in the application of single-phase AC input.
UCD3138 device is located on the board of UCD3138CC64EVM-030. UCD3138CC64EVM-030 is a
daughter card and serves all PFC required control functions with preloaded single-phase boost PFC
firmware. UCD3138PFCEVM-026 accepts universal AC line input from 90 V
AC
to 264 V
AC
, and outputs
nominal 390 V
DC
with full load output power 360 W, or full output current 0.92 A.
2.1
Typical Applications
•
Single-Phase Universal AC Line Power Factor Correction Pre-Regulator
•
Servers
•
Telecommunication Systems
2.2
Features
•
Digitally Controlled PFC Pre-Regulator
•
Universal AC Line Input from 90 V
AC
to 264 V
AC
with AC Line Frequency 47 Hz to 63 Hz
•
Regulated Output 390 V
DC
with Output from No-Load to Full-Load
•
Full-Load Power 360 W, or full-Load Current 0.92 A
•
High Power Factor Close to 0.999 and Low THD Below 5% in Most Operation Conditions
•
High Efficiency
•
Protection:
–
Over Voltage
–
Over Current
–
Brownout
–
Power-On Inrush Current
•
Test Points to Facilitate Device and Topology Evaluation
•
Re-Configurable to Dual-Phase Interleaved PFC or Bridgeless PFC (please contact TI for detail)
4
Digitally Controlled Single-Phase PFC Pre-Regulator
SLUU885B – March 2012 – Revised July 2012
Copyright © 2012, Texas Instruments Incorporated