SLUUCZ9C January   2024  – December 2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Device Information
      1. 1.3.1 U1 Component Selection
      2. 1.3.2 UCC33420-Q1 Pin Definition
    4. 1.4 Specification
  7. 2Hardware
    1. 2.1 EVM Setup and Operation
      1. 2.1.1 Recommended Test Equipment
      2. 2.1.2 External Connections for Easy Evaluation
      3. 2.1.3 Powering the EVM
      4. 2.1.4 EVM Test Points
      5. 2.1.5 Oscilloscope Probes: Probing the EVM
  8. 3Implementation Results
    1. 3.1 Schematic
    2. 3.2 Performance Data
      1. 3.2.1 Efficiency Data
      2. 3.2.2 Regulation Data
      3. 3.2.3 Startup Waveforms
      4. 3.2.4 Inrush Current
      5. 3.2.5 AC Ripple Voltage
      6. 3.2.6 Load Transient
      7. 3.2.7 VCC Short-Circuit
      8. 3.2.8 Thermal Performance
  9. 4Hardware Design Files
    1. 4.1 Assembly and Printed Circuit Board (PCB)
    2. 4.2 Bill of Materials (BOM)
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6Revision History

1.3.1 U1 Component Selection

The UCC33420-Q1 is the default IC used in the UCC33420EVM-080 but any of the alternate versions listed in Table 1-2can be used for evaluation. Each of the component versions listed in Table 1-2 are pin-to-pin compatible.

Table 1-2 UCC33x20-Q1 devices
General Part Number Orderable Part Number Input Voltage/Output Voltage/Isolation
UCC33420-Q1 PUCC33420QRAQRQ1 4.5V-5.5V/5.0V/3kVRMS
UCC33420 PUCC33420RAQR 4.5V-5.5V/5.0V/3kVRMS
UCC33020-Q1 PUCC33420QRAQRQ1 3.3V-5.5V/5.0V/3kVRMS
UCC33020 PUCC33420RAQR 3.3V-5.5V/5.0V/3kVRMS

If IC replacement is required, TI recommends to always use best practice soldering techniques which can include taking appropriate ESD precautions and having qualified personnel, skilled at surface mount soldering and board level rework.