SLVUD94 September   2025

 

  1.   1
  2. 1Description
  3. 2Features
  4. 34
  5. 3Evaluation Module Overview
    1. 3.1 Introduction
    2. 3.2 Kit Contents
    3. 3.3 Specifications
    4. 3.4 Device Information
  6. 4Hardware
    1. 4.1 Definitions
    2. 4.2 Equipment
      1. 4.2.1 Power Supply
      2. 4.2.2 Function Generator
      3. 4.2.3 DMM
      4. 4.2.4 Oscilloscope
    3. 4.3 Connection Descriptions
  7. 5Implementation Results
    1. 5.1 Evaluation Setup
      1. 5.1.1 DC Power Supply Settings
      2. 5.1.2 Digital Multi-Meter Settings
      3. 5.1.3 Two-Channel Function Generator Settings
      4. 5.1.4 Oscilloscope Settings
      5. 5.1.5 Bench Setup Diagram
    2. 5.2 External Bootstrap Diode
    3. 5.3 Power Up and Power Down Procedure
      1. 5.3.1 Power Up
      2. 5.3.2 Power Down
    4. 5.4 Typical Performance Waveforms (CL = 1000pF)
      1. 5.4.1 Propagation Delays
  8. 6Hardware Design Files
    1. 6.1 Schematic
    2. 6.2 PCB Layouts
    3. 6.3 Bill of Materials (BOM)
  9. 7Additional Information
    1. 7.1 Trademarks

5.4.1 Propagation Delays

The waveforms below illustrate the HI input and HO output on the top traces, and the LI input and LO output on the bottom traces in each plot.

To evaluate propagation delays and rising and falling details, it is recommended to have scope probe connections with short ground leads, see Figure 5-3 and Figure 5-4.

UCC27735Q1EVM HI and HO Propagation Delay Waveforms (Green and Magenta are PWM Inputs, Yellow and Blue are Driver Outputs) Figure 5-3 HI and HO Propagation Delay Waveforms (Green and Magenta are PWM Inputs, Yellow and Blue are Driver Outputs)
UCC27735Q1EVM LI and LO Propagation Delay Waveforms (Green and Magenta are PWM Inputs, Yellow and Blue are Driver Outputs) Figure 5-4 LI and LO Propagation Delay Waveforms (Green and Magenta are PWM Inputs, Yellow and Blue are Driver Outputs)