User's Guide
SLUUB53–July 2014
Control Card in Digitally Controlled Off-Line Isolated
Power Converters
This user’s guide describes the characteristics, operation, and use of the UCD3138A64CEVM-660
evaluation module (EVM). The UCD3138A64CEVM-660 is a fully assembled and tested platform for
evaluating the performance of the UCD3138A64 digital controller device from Texas Instruments. This
document includes schematic diagrams, a printed circuit board (PCB) layout, bill of materials, and test
data. Throughout this document, the abbreviations EVM, UCD3138A64CEVM, and the term evaluation
module are synonymous with the UCD3138A64CEVM-660, unless otherwise noted.
Contents
1 Introduction ................................................................................................................... 2
2 Description.................................................................................................................... 3
2.1 Typical Applications ................................................................................................ 3
2.2 Features.............................................................................................................. 3
2.3 Configuring the EVM to Access EEPROM SPI or I2C Communication with UCD3138A64............... 3
3 Specifications................................................................................................................. 4
4 Schematics ................................................................................................................... 5
5 Test Equipment .............................................................................................................. 7
5.1 PC Computer........................................................................................................ 7
5.2 Oscilloscope ........................................................................................................ 7
6 Equipment Setup............................................................................................................. 8
6.1 Graphical User Interface (GUI).................................................................................... 8
6.2 Hardware Setup..................................................................................................... 8
6.3 List of Test Points .................................................................................................. 9
7 Test Procedure ............................................................................................................. 10
7.1 Download Firmware Code to UCD3138A64EVM-660........................................................ 10
7.2 Erase Firmware Code from UCD3138A64EVM-660.......................................................... 11
7.3 Equipment Shutdown............................................................................................. 11
8 EVM Assembly Drawing and PCB layout............................................................................... 12
9 Bill of Materials ............................................................................................................. 15
Appendix A Summary of Using Code Composer Studio v5.5.............................................................. 17
List of Figures
1 UCD3138A64EVM-660 Schematics (1 of 2) ............................................................................. 5
2 UCD3138A64EVM-660 Schematics (2 of 2) ............................................................................. 6
3 USB-to-GPIO Interface Adapter (HPA172)............................................................................... 7
4 UCD3138A64EVM-660 Test Connections................................................................................ 8
5 UCD3xxx/UCD9xxx Device GUI.......................................................................................... 10
6 Firmware Code Downloading............................................................................................. 11
7 UCD3138A64EVM-660 Top Layer Assembly Drawing (Top View).................................................. 12
8 UCD3138A64EVM-660 Bottom Assembly Drawing (No Components) ............................................. 12
9 UCD3138A64EVM-660 Top Copper (Top View)....................................................................... 13
10 UCD3138A64EVM-660 Internal Layer 1 (Top View) .................................................................. 13
11 UCD3138A64EVM-660 Internal Layer 2 (Top View) .................................................................. 14
12 UCD313A64CEVM-660 Bottom Copper (Top View)................................................................... 14
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SLUUB53–July 2014 Control Card in Digitally Controlled Off-Line Isolated Power Converters
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