SLVUD94 September   2025 UCC27734 , UCC27734-Q1 , UCC27735 , UCC27735-Q1

 

  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

4.3 Connection Descriptions

Table 4-1 details the connection descriptions.

Table 4-1 Connection Descriptions
PinsDescription
VCCVCC positive input bias supply test point. Powers IC VDD pin, use 10V to 21V range.
VDDVDD positive input bias of UCC27735-Q1 IC
GNDMultiple test points. VCC negative input, HI_IN,LI_IN, and ENA_IN negative inputs, and ground at UCC27735-Q1 IC
HI_INHigh-side input to EVM
HIHigh-side input pin, HI
LI_INLow-side input to EVM
LILow-side input pin, LI
ENA_INEnable input to EVM. Connect to GND to disable driver.

ENA

Enable input pin, EN/NC
VHBHB pin voltage
HO LDHigh-side output at capacitive load
HOHigh-side output pin
HSHigh-side driver return pin. Usually connected to high-side MOSFET source.
LO LDLow-side output at capacitive load
LOLow-side output pin

COM

Low-side driver return pin. Usually connected to low-side MOSFET source.

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