Texas Instruments LMG3411EVM-029 Manuals

1 SNVU637–October 2018 Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM User's Guide SNVU637–October 2018 Using the LMG3411EVM-029 Half-Bridge and LMG34XX- BB-EVM Breakout Board EVM The LMG3411EVM-029 features two LMG3411R070 600V/12A GaN power transistors with integrated drivers that are configured in a half bridge with all the required bias circuit and logic/power level shifting. Essential power stage and gate driving high frequency current loops are fully enclosed on the board to minimize parasitic inductances, reducing voltage overshoots and improving performance. The LMG3411EVM-029 is configured to have a socket style external connection for easy interface with external power stages to run the LMG3411R070 in various applications. Contents 1 LMG3411EVM-029 User's Guide General TI High Voltage Evaluation User Safety Guidelines.................. 2 2 Description.................................................................................................................... 4 3 Schematic..................................................................................................................... 8 4 Test Setup................................................................................................................... 11 5 Test Procedure ............................................................................................................. 14 6 Typical Characteristics..................................................................................................... 15 7 EVM Assembly Drawing and PCB Layout .............................................................................. 17 8 Bill of Materials ............................................................................................................. 18 List of Figures 1 Simplified LMG3411EVM-029 Schematic ................................................................................ 5 2 Front and Back Side Photos of LMG3411EVM-029 .................................................................... 6 3 LMG3411EVM-029 Schematic............................................................................................. 8 4 Recommended Footprint for LMG3411EVM-029........................................................................ 9 5 LMG34XX-BB-EVM Schematic .......................................................................................... 10 6 LMG3411EVM-029 Connected with LMG34XX-BB-EVM ............................................................ 11 7 Recommended Connection Points....................................................................................... 12 8 Recommended Probe Connection for Logic Signals.................................................................. 15 9 Recommended Probe Connection for High Voltage Switch Node................................................... 15 10 Recommended Configuration for Heat Sink and Fan ................................................................. 15 11 Switching Waveforms with 480V input, 100kHz, 30% duty cycle, 6A output....................................... 15 12 Low to High Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output ........................ 15 13 High to Low Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output ........................ 15 14 LMG3411EVM-029 Top Layer and Components ...................................................................... 17 15 LMG3411EVM-029 Inner Copper Layer 1 .............................................................................. 17 16 LMG3411EVM-029 Inner Copper Layer 2 .............................................................................. 17 17 LMG3411EVM-029 Bottom Layer and Components .................................................................. 17 18 LMG34XX-BB-EVM Top Layer and Components...................................................................... 17 19 LMG34XX-BB-EVM Bottom Layer and Components.................................................................. 17 List of Tables 1 Logic Pin Function Description............................................................................................. 4 2 Power Pin Function Description ........................................................................................... 4 3 Test Point Functional Description........................................................................................ 13