Texas Instruments LMG3411EVM-029 User Manual
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Texas Instruments LMG3411EVM-029 User Manual

Texas Instruments LMG3411EVM-029 User Manual

Half-bridge and breakout board evm
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Using the LMG3411EVM-029 Half-Bridge and LMG34XX-
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.
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Low to High Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output
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High to Low Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output
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LMG3411EVM-029 Inner Copper Layer 2
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LMG34XX-BB-EVM Top Layer and Components
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LMG34XX-BB-EVM Bottom Layer and Components
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Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout
Copyright © 2018, Texas Instruments Incorporated
BB-EVM Breakout Board EVM
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List of Figures
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List of Tables
User's Guide
SNVU637 - October 2018
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Board EVM
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Summary of Contents for Texas Instruments LMG3411EVM-029

  • Page 1: Table Of Contents

    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.

  • Page 2: Lmg3411Evm-029 User's Guide General Ti High Voltage Evaluation User Safety Guidelines

    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 LMG3411EVM-029 User's Guide General TI High Voltage Evaluation User Safety Guidelines www.ti.com • Personal Safety: – Wear personal protective equipment, for example, latex gloves and/or safety glasses with side shields or protect EVM in an adequate lucent plastic box with interlocks from accidental touch.

  • Page 4: Description

    Description www.ti.com Description The LMG3411EVM-029 operates as a daughter card as part of a larger custom designed system or with the LMG34XX-BB-EVM breakout motherboard. LMG3411EVM-029 The LMG3411EVM-029 configures two LMG3411R070 GaN FETs in a half bridge. All the bias and level shifting components are included, allowing low side referenced signals to control both FETs.

  • Page 5: Simplified Lmg3411Evm-029 Schematic

    2.1.1 FAULT The FAULT pin of LMG3411EVM-029 is active low when an under voltage lockout on an auxiliary voltage rail, over temperature or overcurrent event occurs on the LMG3411R070. The FAULT signal for both LMG3411R070 devices are level shifted to AGND, where they are logic AND connected to the FAULT pin.

  • Page 6: Front And Back Side Photos Of Lmg3411Evm-029

    2.1.3 Bootstrap Mode The LMG3411EVM-029 card can be modified to operate in bootstrap mode, where the 12V bias voltage is used to power both LMG3411R070 devices. This can be achieved by removing U4, U5 and R1, and placing a 20 Ω resistor on R2, a 0 Ω resistor on R7 and a 600V SOD-123 diode on D1, such as Micro Commercial Components UFM15PL-TP.
  • Page 7 There is an option to disable PWM input to the FET card in the event of a fault signal from the LMG3411EVM-029. When the FAULT Protect jumper is placed in the EN mode, PWM is disabled when either LMG3411R070 has an active fault. This disable is not latching, so when the fault clears PWM immediately resumes.

  • Page 8: Schematic

    Schematic www.ti.com Schematic Figure 3. LMG3411EVM-029 Schematic Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout SNVU637 – October 2018 Board EVM Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 9: Recommended Footprint For Lmg3411Evm-029

    Schematic www.ti.com Figure 4. Recommended Footprint for LMG3411EVM-029 SNVU637 – October 2018 Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 10: Lmg34Xx-Bb-Evm Schematic

    AGND PGND PGND Green PGND2 AGND ACMGND AGND2 Copyright © 2016, Texas Instruments Incorporated Figure 5. LMG34XX-BB-EVM Schematic Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout SNVU637 – October 2018 Board EVM Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 11: Test Setup

    Function Generator: Capable of 0 V to 5 V square wave output with adjustable duty cycle and frequency in desired operating range. It is recommended to operate the LMG3411EVM-029 and LMG34XX-BB-EVM with a switching frequency between 50 kHz to 200 kHz.

  • Page 12: Recommended Connection Points

    Figure 7. Recommended Connection Points PCB Notes: • Probe points for gate drive logic • 100 mil header for PWM input, PWM signals to LMG3411EVM-029 and FAULT output • BNC connector for PWM input • 12V bias supply input •...

  • Page 13: Test Point Functional Description

    Single 0 V to 5 V PWM input for gate LOGIC Header to connect PWM, FAULT logic HB Card PIN Connector to interface LMG3411EVM-029 board SNVU637 – October 2018 Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 14: Test Procedure

    6 (PWM) and pin 5 (GND) at B. • Enable an external fan to direct airflow across the heat sink attached to the LMG3411EVM-029 Startup and Operating Procedure The following procedure is recommended to enable the LMG34XX-BB-EVM with the LMG3411EVM-029: 1.

  • Page 15: Typical Characteristics

    Figure 9. Recommended Probe Connection for High Figure 8. Recommended Probe Connection for Logic Voltage Switch Node Signals SNVU637 – October 2018 Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout Board EVM Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...

  • Page 16: Recommended Configuration For Heat Sink And Fan

    Figure 12. Low to High Transition Waveform with 480V Figure 13. High to Low Transition Waveform with 480V input, 100kHz, 30% duty cycle, 6A output input, 100kHz, 30% duty cycle, 6A output Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout SNVU637 – October 2018 Board EVM Submit Documentation Feedback...

  • Page 17: Evm Assembly Drawing And Pcb Layout

    EVM Assembly Drawing and PCB Layout www.ti.com EVM Assembly Drawing and PCB Layout Figure 15. LMG3411EVM-029 Inner Copper Layer 1 Figure 14. LMG3411EVM-029 Top Layer and Components Figure 17. LMG3411EVM-029 Bottom Layer and Figure 16. LMG3411EVM-029 Inner Copper Layer 2 Components Figure 18.

  • Page 18: Bill Of Materials

    Channel Digital Isolator, DBQ0016A (SSOP- U4, U5 Low-Noise 1 A, 420 kHz Transformer Driver, SN6505BDBVR Texas Instruments DBV0006A (SOT-6) Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout SNVU637 – October 2018 Board EVM Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 19 Bill of Materials www.ti.com Table 5. LMG3411EVM-029 List of Materials (continued) QTY DESIGNATOR DESCRIPTION PART NUMBER MANUFACTURER Single 2-Input Positive-AND Gate, SN74AHC1G08DBVR Texas Instruments DBV0005A Diode, Ultrafast, 600 V, 1 A, SOD-123FL UFM15PL-TP Micro Commercial Components FID1, FID2, FID3, FID4, Fiducial mark.
  • Page 20 DUAL 2-INPUT POSITIVE-AND GATE, SN74LVC2G08IDCTRQ1 Texas Instruments DCT0008A 1A Low Dropout Regulator, 4-pin SOT-223, LM2940IMP-5.0/NOPB Texas Instruments Pb-Free Using the LMG3411EVM-029 Half-Bridge and LMG34XX-BB-EVM Breakout SNVU637 – October 2018 Board EVM Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated...
  • Page 21 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
  • Page 22 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 23 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/ /www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 3.4 European Union 3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a low-voltage power-supply network that supplies buildings used for domestic purposes.
  • Page 24 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2018, Texas Instruments Incorporated...
  • Page 25 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2018, Texas Instruments Incorporated...

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