SNVU890 January   2024

 

  1.   1
  2.   Description
  3.   3
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  8. 2Hardware
    1. 2.1 Test Points
      1. 2.1.1 Key Connections
        1. 2.1.1.1 Connect a Supply to J3 Connector
        2. 2.1.1.2 PWM Input
        3. 2.1.1.3 J1 Connector: Power Supply
    2. 2.2 Power-Up Procedure
      1. 2.2.1 Step 1: Driver Bias Supply
      2. 2.2.2 Step 2: Input Supply
      3. 2.2.3 Step 3: Measure SW Voltage
      4. 2.2.4 Setting Dead-Time
    3. 2.3 Power-Down Procedure
  9. 3Implementation Results
    1. 3.1 Electrical Performance Specifications
      1. 3.1.1 Evaluation Setup
      2. 3.1.2 Performance Data and Results
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks

Performance Data and Results

The following waveforms and thermal image are collected from a buck converter test setup with the following conditions: Vin: 60V, Fsw: 200kHz, Duty Cycle: 50%, Iout: 20A, Tamb: 23C, with heat sink no airflow

GUID-20240111-SS0I-54WX-WVTW-SKWBJHSBHBSW-low.pngFigure 3-3 SW Node Full Switching Period
GUID-20240111-SS0I-GJSB-LRCC-XTXZCLVDWSJS-low.pngFigure 3-5 SW Node Low-Side Turn-Off
GUID-20240111-SS0I-SBPS-VZPP-8XBLTZ5GFH00-low.jpgFigure 3-4 Thermal Capture of EVM After Steady State
GUID-20240111-SS0I-R5T5-LFPH-VKMK3VWMXWQ8-low.pngFigure 3-6 SW Node Low-Side Turn-On
Note: Visit the E2E forum Gallium Nitride Solutions for more information regarding LMG3100 or LMG3100 hard-switched EVM.