Texas Instruments UCD3138 Digital Resonant LLC Converter Evaluation Module UCD3138LLCEVM-028 UCD3138LLCEVM-028 데이터 시트
제품 코드
UCD3138LLCEVM-028
Description
2
Description
The UCD3138LLCEVM-028 along with the UCD3138CC64EVM-030 demonstrates an LLC resonant half-
bridge DC-DC power converter with digital control using the UCD3138 device. The UCD3138 device is
located on the UCD3138CC64EVM-030 board. The UCD3138CC64EVM-030 is a daughter card with
preloaded firmware that provides the required control functions for an LLC converter. For details of the
firmware please contact TI. UCD3138LLCEVM-028 accepts a DC input from 350 V
bridge DC-DC power converter with digital control using the UCD3138 device. The UCD3138 device is
located on the UCD3138CC64EVM-030 board. The UCD3138CC64EVM-030 is a daughter card with
preloaded firmware that provides the required control functions for an LLC converter. For details of the
firmware please contact TI. UCD3138LLCEVM-028 accepts a DC input from 350 V
DC
to 400 V
DC
, and
outputs a nominal 12 V
DC
with full load output power of 340 W, or full output current of 29 A.
NOTE:
This EVM does not have an input fuse and relies on the input current limit from the input
voltage source used.
2.1
Typical Applications
•
Offline DC-to-DC Power Conversion
•
Servers
•
Telecommunication Systems
2.2
Features
•
Digitally Controlled LLC Resonant Half-Bridge DC-to-DC Power Conversion
•
DC Input from 350 V
DC
to 400 V
DC
•
12 V
DC
Regulated Output from No Load to Full Load
•
Full-Load Power 340 W, or Full-Load Current 29 A
•
High Efficiency
•
Constant Soft-Start Time
•
Protection: Over Voltage, Over Current, Brownout and Output Short-Circuit Protection
•
Test Points to Facilitate Device and Topology Evaluation
•
Synchronous Rectification
•
Automatic Mode Switching between LLC Mode and PWM Mode
•
Cycle-by-Cycle Current Limiting with Duty Cycle Matching
•
Constant Current and Constant Power Control Mode
•
PMBUS Communication
•
Current Sharing Capability (GUI Enable), Across Paralleled Units
4
Digitally Controlled LLC Resonant Half-Bridge DC-DC Converter
SLUU979A – August 2012 – Revised July 2013
Copyright © 2012–2013, Texas Instruments Incorporated