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Using the LMG341xEVM-018 half-bridge and LMG34XX-
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.
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LMG341xEVM-018 User's Guide General TI High Voltage Evaluation User Safety Guidelines
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SNOU165A - September 2018 - Revised March 2019
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Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout
Copyright © 2018-2019, Texas Instruments Incorporated
SNOU165A - September 2018 - Revised March 2019
BB-EVM breakout board EVM
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Related Manuals for Texas Instruments LMG341-EVM-018
Summary of Contents for Texas Instruments LMG341-EVM-018
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Page 1: Table Of Contents
LMG34XX-BB-EVM Bottom Layer and Components List of Tables ..................... Logic Pin Function Description ................... Power Pin Function Description SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... - Page 2 Any other use and/or application are strictly prohibited by Texas Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM.
- Page 3 For safety, use of isolated test equipment with overvoltage and overcurrent protection is highly recommended. SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated...
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Page 4: Description
Input DC voltage of the half bridge PGND Power ground of the half bridge. Functionally isolated from AGND. Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 5: Simplified Lmg341Xevm-018 Schematic
VSW to VDC, PGND and any logic pins. The two grounds PGND and AGND are functionally isolated from each other on the LMG341xEVM-018. SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 6: Top Side View Of Lmg341Xevm-018
50 ns of dead time between both transitions of the PWM signals. Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... - Page 7 Maximum recommended operating voltage of 480V and absolute maximum voltage of 600V • Maximum recommended operating inductor current of 8A SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated...
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Page 8: Schematic
Schematic www.ti.com Schematic Figure 4. LMG3410EVM-018 Schematic Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 9: Recommended Footprint For Lmg341Xevm-018
Schematic www.ti.com Figure 5. Recommended Footprint for LMG341xEVM-018 SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 10: Lmg34Xx-Bb-Evm Schematic
PGND Green PGND2 AGND ACMGND AGND2 Copyright © 2016, Texas Instruments Incorporated Figure 6. LMG34XX-BB-EVM Schematic Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 11: Test Setup
The LMG341xEVM-018 connects to the LMG34XX-BB-EVM as Figure 7 shows. Figure 7. LMG3410EVM-018 Connected with LMG34XX-BB-EVM SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 12: Recommended Connection Points
GaN devices used on this EVM. The data shown in this user guide has been obtained using such a measurement method. Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 13: Test Point Functional Description
Header to connect PWM, FAULT logic HB Card PIN Connector to interface LMG341xEVM-018 board SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 14: Test Procedure
Fault protection on the LMG34XX-BB-EVM is not latching, so if a fault clears and the LMG34XX-BB- EVM is still operational PWM will resume. Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 15: Typical Characteristics
Figure 12. Switching Waveforms with 480V input, 100kHz, 30% duty cycle, 6A output Figure 11. Recommended Configuration for Heatsink and SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 16: Evm Assembly Drawing And Pcb Layout
Figure 16. LMG341xEVM-018 Inner Copper Layer 1 Figure 15. LMG341xEVM-018 Top Layer and Components Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 17: Lmg341Xevm-018 Inner Copper Layer
Figure 19. LMG34XX-BB-EVM Top Layer and Components Figure 20. LMG34XX-BB-EVM Bottom Layer and Components SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... -
Page 18: Bill Of Materials
U1, U3 High Speed, Robust EMC Reinforced ISO7731DBQR Texas Instruments Triple-Channel Digital Isolator, DBQ0016A (SSOP-16) Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... - Page 19 Thermal Transfer Printable Labels, THT-14-423-10 Brady 0.650" W x 0.200" H - 10,000 per roll SNOU165A – September 2018 – Revised March 2019 Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated...
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Page 20: Lmg34Xx-Bb-Evm List Of Materials
SN74LVC2G08IDCTRQ1 Texas Instruments DCT0008A 1A Low Dropout Regulator, 4-pin SOT-223, LM2940IMP-5.0/NOPB Texas Instruments Pb-Free Using the LMG341xEVM-018 half-bridge and LMG34XX-BB-EVM breakout SNOU165A – September 2018 – Revised March 2019 board EVM Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated... - Page 21 NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (September 2018) to A Revision ....................Page .................... • Updated UG covering both LMG341xR050 SNOU165A – September 2018 – Revised March 2019 Revision History Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated...
- Page 22 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2022, Texas Instruments Incorporated...
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