SLUUD92 June   2025

 

  1.   1
  2.   Abstract
  3. 1General TI High Voltage Evaluation User Safety Guidelines
  4. 2Module and Gate Driver Compatibility
    1. 2.1 Supported Wolfspeed Modules and Evaluation Platforms
    2. 2.2 Supported Gate Drivers
  5. 3System Overview and Functions
    1. 3.1 Features
    2. 3.2 Specifications
    3. 3.3 PCB Pinout
    4. 3.4 EVM Information
      1. 3.4.1 Primary-Side Power
      2. 3.4.2 Primary-Side I/O and Diagnostics
      3. 3.4.3 Secondary-Side Bias Supply
      4. 3.4.4 Output Stage Gate Loop
      5. 3.4.5 Current Booster
      6. 3.4.6 Short-Circuit Detection System
        1. 3.4.6.1 Short-Circuit Detection - DESAT
        2. 3.4.6.2 Short-Circuit Detection - OC
  6. 4Using the EVM
    1. 4.1 Equipment List and Board Setup
    2. 4.2 Test Setups and Procedures
      1. 4.2.1 Power-On and Bias Supply Check
      2. 4.2.2 Output Switching
  7. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  8. 6Additional Information
    1. 6.1 Trademarks
  9. 7Revision History

3.1 Features

  • Fully compatible with UCC218xxx family of isolated gate drivers
  • Directly compatible with Wolfspeed's FM3 and XM3 modules
  • UCC34141 isolated bias supplies up to 1.5 W to each driver
    • Only a +12-V input voltage needed to generate the primary-side and secondary-side bias voltages
  • Status LEDs indicate power-good and fault feedback from each driver
  • Test points for all critical nodes to expedite debugging
  • Ability to install external buffer to increase drive strength