TIDUFF7A October   2025  – March 2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Terminology
    2. 1.2 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 AM2612
      2. 2.3.2 DRV7167A
      3. 2.3.3 AMC0106M05
      4. 2.3.4 DP83826A
  9. 3System Design Theory
    1. 3.1 AM2612 Motor Control and Communication Interface
    2. 3.2 DC Link and Ground Configuration
    3. 3.3 Three-Phase Inverter With DRV7167A Half-Bridge GaN Motor Driver Power Stage
    4. 3.4 Inline Shunt Precision Phase-Current Sensing With AMC0106M05 Functionally Isolated, Delta-Sigma Modulator
    5. 3.5 System Power Management
    6. 3.6 Functional Safety Concept
    7. 3.7 Ethernet Physical Layer
    8. 3.8 Position Feedback Interface
  10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
      1. 4.1.1 TIDA-010979 PCB Overview
      2. 4.1.2 TIDA-010979 Hardware Setting
    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 Half-Bridge GaN Motor Driver Power Stage Switch Node
      3. 4.4.3 Power Stage Thermal Measurements
      4. 4.4.4 Phase-Current Sensing and Position Feedback
      5. 4.4.5 EtherCAT® Communication
  11. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
      3. 5.1.3 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. 7Revision History

Description

This reference design features TI Sitara™ MCU-AM261x devices handling an industrial Ethernet-connected motor drive. The design uses a 70mm diameter printed circuit board (PCB) to drive a humanoid robot joint (48V, 1kW Eyoubot motor). The design demonstrates a small form factor and simplified integrated platform. The platform includes a high-power density section using three DRV7167 half-bridge GaN motor driver power stages, an accurate real-time control stage with an AM2612 500MHz R5F core MCU and AMC0106 functionally isolated delta-sigma modulator, plus high-bandwidth communication through industrial Ethernet.