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

5.1.5 Bench Setup Diagram

The bench setup diagram includes the function generator and oscilloscope connections.

Use the following connection procedure, refer to Figure 5-1.

  • First, make sure the output of the function generator and power supplies are disabled before connection.
  • Apply function generator channel-A on HI_IN-GND.
  • Apply function generator channel-B on LI_IN-GND.

  • Ensure shunt is installed on J1 pins 1-2 to connect EN to VDD.

  • Ensure shunt is installed on J2 pins 1-2 to connect HS to GND.

  • Power supply #1: apply positive lead to current input of DMM #1 and current output of DMM #1 to test point VCC; apply negative lead to test point GND.
  • Apply oscilloscope channel-1 probes on HO LD-HS, minimizing the loop area as much as possible. Note the scope ground is connected to HS test point.
  • Apply oscilloscope channel-2 probes on LO LD-GND, minimizing the loop area as much as possible.
UCC27735Q1EVM Bench Setup Diagram and ConfigurationFigure 5-1 Bench Setup Diagram and Configuration