TIDUF68A February   2024  – March 2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 LMG2100
      2. 2.3.2 INA241A
      3. 2.3.3 AMC0106M05
      4. 2.3.4 LMR38010
  9. 3System Design Theory
    1. 3.1 Three-Phase GaN Inverter Power Stage
      1. 3.1.1 LMG2100 GaN Half-Bridge Power Stage
    2. 3.2 Inline Shunt Precision Phase-Current Sensing
      1. 3.2.1 INA241A Ultra-Precise Current Sense Amplifier with Enhanced PWM Rejection
      2. 3.2.2 AMC0106M05 Precision, ±50mV Input, Functionally Isolated, Delta-Sigma Modulator
    3. 3.3 Phase Voltage and DC Input Voltage Sensing
    4. 3.4 Power-Stage PCB Temperature Monitor
    5. 3.5 Power Management
      1. 3.5.1 48V to 5V DC/DC Converter
      2. 3.5.2 5V to 3.3V Rail
    6. 3.6 Interface to Host MCU
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
      1. 4.1.1 TIDA-010936 PCB Overview
      2. 4.1.2 TIDA-010936 Jumper Settings
      3. 4.1.3 Interface to C2000™ MCU LaunchPad™ Development Kit
    2. 4.2 Software Requirements
    3. 4.3 Test Setup
    4. 4.4 Test Results
      1. 4.4.1 Power Management and System Power Up and Power Down
      2. 4.4.2 GaN Inverter Half-Bridge Module Switch Node Voltage
        1. 4.4.2.1 Switch Node Voltage Transient Response at 48V DC Bus
          1. 4.4.2.1.1 Output Current at ±1A
          2. 4.4.2.1.2 Output Current at ±10A
        2. 4.4.2.2 Impact of PWM Frequency to DC-Bus Voltage Ripple
        3. 4.4.2.3 Efficiency Measurements
        4. 4.4.2.4 Thermal Analysis
        5. 4.4.2.5 No Load Loss Test (COSS Losses)
      3. 4.4.3 Phase-Current Sensing
  11. 5Design and Documentation Support
    1. 5.1 Design Files [Required Topic]
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
      3. 5.1.3 PCB Layout Recommendations
        1. 5.1.3.1 Layout Prints
      4. 5.1.4 Altium Project
      5. 5.1.5 Gerber Files
      6. 5.1.6 Assembly Drawings
    2. 5.2 Tools and Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  12. 6About the Author
  13. 7Recognition
  14. 8Revision History

5.2 Tools and Software

Tools

    BOOSTXL-LMG2100-MDThe BOOSTXL-LMG2100-MD evaluation module (EVM) implements a GaN inverter with precision in-line shunt-based phase-current sensing for accurate control of precision drives such as servo drives. The EVM offers a TI BoosterPack™ compatible interface to connect to a C2000™ MCU LaunchPad™ development kit for easy performance evaluation.
    LAUNCHXL-F28P65X C2000™ Real-Time MCU F28P65x LaunchPad™ Development KitLAUNCHXL-F28P65X is a low-cost development board for TI C2000™ real-time microcontrollers series of F28P65x devices. An excellent choice for initial evaluation and prototyping, the board provides a standardized and easy-to-use platform to develop applications. This extended version LaunchPad™ development kit offers extra pins for development and supports the connection of two BoosterPack™ plug-in modules. As part of the vast TI MCU LaunchPad ecosystem, the board is also cross-compatible with a broad range of plug-in modules.

Software

    MotorControl Software Development Kit (SDK) for C2000™ MCUMotorControl SDK for C2000™ microcontrollers (MCU) is a cohesive set of software infrastructure, tools, and documentation designed to minimize C2000 real-time controller-based motor control system development time targeted for various three-phase motor control applications. The software includes firmware that runs on C2000 motor control evaluation modules (EVMs) and TI reference designs which are targeted for industrial drives, robotics, appliances, and automotive applications. MotorControl SDK provides all the needed resources at every stage of development and evaluation for high performance motor control applications.