TIDUFG9A December   2025  – March 2026

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
      1. 2.2.1 Switching Pattern of a 3-Level Flying Capacitor Switching Cell
      2. 2.2.2 Power Switching Devices Selection and Cooling Approach
      3. 2.2.3 Boost Inductor Selection
      4. 2.2.4 Flying Capacitor Selection
      5. 2.2.5 Cx Capacitance Selection
      6. 2.2.6 DC-Link Output Capacitance Selection
   3. 2.3 Highlighted Products
      1. 2.3.1 LMG3522R030 - 650V, 30mΩ GaN FET With Integrated Driver
      2. 2.3.2 LMG367xR010 650V 10mΩ GaN FET With Integrated Driver and Protection
      3. 2.3.3 TMDSCNCD28P55X - controlCARD Evaluation Module
         1. 2.3.3.1 Hardware Features
         2. 2.3.3.2 Software Features
      4. 2.3.4 TMCS1126 - Precision 500kHz Hall-Effect Current Sensor With Reinforced Isolation
      5. 2.3.5 UCC33421-Q1 Ultra-Small, 1.5W, 5.0V, 5kVRMS Isolation, DC/DC Module
9. 3Hardware, Software, Testing Requirements, and Test Results
   1. 3.1 Hardware Requirements
   2. 3.2 Test Setup
      1. 3.2.1 Testing TIDA-010957 Connected to the Grid With DC-Link
   3. 3.3 Test Results
      1. 3.3.1 Testing TIDA-010957 Connected to the Grid With DC-Link Using LMG3522R030: Balanced Currents
         1. 3.3.1.1 Nominal Apparent Power
         2. 3.3.1.2 Efficiency vs Power vs DC-Link Voltage
            1. 3.3.1.2.1 Testing the Converter: 700VDC Input to 400VAC Output
            2. 3.3.1.2.2 Testing the Converter: 800VDC Input to 400VAC Output
            3. 3.3.1.2.3 Testing the Converter: 900VDC Input to 400VAC Output
            4. 3.3.1.2.4 Testing the Converter: 800VDC Input to 480VAC Output
      2. 3.3.2 Testing TIDA-010957 Tied to the Grid With DC-Link Using LMG3522R030: Unbalance Currents
      3. 3.3.3 Testing TIDA-010957 Connected to the Grid With DC-Link Using LMG3670R010: Balanced Currents
10. 4Design and Documentation Support
    1. 4.1 Design Files
       1. 4.1.1 Schematics
       2. 4.1.2 BOM
    2. 4.2 Documentation Support
    3. 4.3 Support Resources
    4. 4.4 Trademarks
11. 5About the Author
12. 6Revision History