Texas Instruments LMG341-EVM-018, User Manual

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1 SNOU165A – September 2018 – Revised March 2019
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Copyright © 2018–2019, Texas Instruments Incorporated
Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout
board EVM
User's Guide
SNOU165A – September 2018 – Revised March 2019
Using the LMG341xEVM-018 half-bridge and LMG34XX-
BB-EVM breakout board EVM
The LMG341xEVM-018 features two LMG341xR050 600V 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 LMG341xEVM-018 is
configured to have a socket style external connection for easy interface with external power stages to run
the LMG341xR050 in various applications.
Contents
1 LMG341xEVM-018 User's Guide General TI High Voltage Evaluation User Safety Guidelines
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2 Description
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3 Schematic
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4 Test Setup
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5 Test Procedure
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6 Typical Characteristics
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7 EVM Assembly Drawing and PCB Layout
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8 Bill of Materials
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List of Figures
1 Simplified LMG341xEVM-018 Schematic
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2 Top Side View of LMG341xEVM-018
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3 Back Side View of LMG341xEVM-018
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4 LMG3410EVM-018 Schematic
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5 Recommended Footprint for LMG341xEVM-018
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6 LMG34XX-BB-EVM Schematic
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7 LMG3410EVM-018 Connected with LMG34XX-BB-EVM
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8 Recommended Connection Points
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9 Recommended Probe Connection for Logic Signals
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10 Recommended Probe Connection for High Voltage Switch Node
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11 Recommended Configuration for Heatsink and Fan
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12 Switching Waveforms with 480V input, 100kHz, 30% duty cycle, 6A output
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13 Low to High Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output
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14 High to Low Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output
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15 LMG341xEVM-018 Top Layer and Components
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16 LMG341xEVM-018 Inner Copper Layer 1
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17 LMG341xEVM-018 Inner Copper Layer 2
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18 LMG341xEVM-018 Bottom Layer and Components
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19 LMG34XX-BB-EVM Top Layer and Components
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20 LMG34XX-BB-EVM Bottom Layer and Components
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List of Tables
1 Logic Pin Function Description
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2 Power Pin Function Description
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