SLUUCX0 February   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Recommended Power Requirements
    2. 2.2 I/O Description
    3. 2.3 Jumper Description
    4. 2.4 Setup for Different UCC57108 Variants
    5. 2.5 DESAT Setup
  7. 3Implementation Results
    1. 3.1 Out-The-Box Evaluation
    2. 3.2 Equipment Setup
      1. 3.2.1 Power Supply
      2. 3.2.2 Function Generator
      3. 3.2.3 Oscilloscope
      4. 3.2.4 Digital Multimeter (DMM)
    3. 3.3 Bench Setup
    4. 3.4 Procedure and Results
  8. 4Typical Performance Waveforms
    1. 4.1 DESAT Feature
    2. 4.2 Bipolar Feature of UCC57108B
  9. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials
  10. 6Compliance Information
  11. 7Additional Information
    1. 7.1 Trademarks

3.4 Procedure and Results

Before powering up the test procedure, make sure that the connections are correct as shown as in Section 3.3.

  1. Turn on PSU #1 and check the current on DMM #1. If the current shown is more than 0.5mA and less than 1.25mA, then everything is set correctly.
  2. Turn on the function generator output and examine for the following conditions:
    1. The current on DMM #1 with the function generator ON must show 2.7mA±1mA.
    2. The OUT signal must have a narrower width compared to the IN signal. Use Figure 4-2 as reference.
    3. Look at the FAULT signal, this must be high at all times except when the OUT signal is low during the period where IN is high. When IN becomes low, the FAULT rises to high again. Use Figure 4-2 as reference.
    4. There must be a 5V signal on VREF.
  3. Once testing is satisfied, power down the EVM by following the order:
    1. Turn off function generator.
    2. Turn off power supply #1.
    3. Disconnect cables and probes.
GUID-D35BE477-28A3-4890-8F13-ADD47EEC386A-low.png Figure 3-2 Reference waveforms for UCC57108EVM out-of-box evaluation.
Note: To learn more about why the Out-The-Box Evaluation causes this behavior to occur, see Section 2.5.