SLVUDZ3 July   2026

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6. 16
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
      1. 1.3.1 Supported Wolfspeed Modules and Evaluation Platforms
      2. 1.3.2 Supported Gate Drivers
    4. 1.4 Device Information
      1. 1.4.1 Primary-Side Power
      2. 1.4.2 Primary-Side I/O and Diagnostics
      3. 1.4.3 Secondary-Side Bias Supply
      4. 1.4.4 Output Stage Gate Loop
      5. 1.4.5 Short-Circuit Detection System
        1. 1.4.5.1 Short-Circuit Detection - DESAT
      6. 1.4.6 PCB Pinout
    5. 1.5 General TI High Voltage Evaluation User Safety Guidelines
  8. 2Using the EVM
    1. 2.1 Equipment List and Board Setup
    2. 2.2 Test Setups and Procedures
      1. 2.2.1 Power-On and Bias Supply Check
      2. 2.2.2 Output Switching
  9. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials (BOM)
  10. 4Additional Information
    1. 4.1 Trademarks
  11. 5References

1.4.1 Primary-Side Power

The primary-side power supply block fulfills the following functions:

  • Provides +12V input to the board through the connector or the test-point hooks.
  • Converts the +12V input voltage to +5V VCC for the gate drivers. This functionality is realized by a TPS7A25 LDO.
  • The +12V power supply and the PWM signals must connect to the same board, either the differential board or the EVM. Failure to do so can result in EVM component damage.
    UCC2183XXQEVM-123 Primary-Side Power Figure 1-1 Primary-Side Power