SLUUCW5 November   2023 UCC28750

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
  8. 2Hardware
    1. 2.1 Test Points
    2. 2.2 Test Setup
      1. 2.2.1 Test Setup Requirements
      2. 2.2.2 Test Setup Diagram
    3. 2.3 Best Practices
      1. 2.3.1 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  9. 3Implementation Results
    1. 3.1 Performance Data and Typical Characteristic Curves
      1. 3.1.1 Efficiency
      2. 3.1.2 Startup
      3. 3.1.3 Load Transients
      4. 3.1.4 Output Ripple Voltage at Full Load
      5. 3.1.5 Q1 Drain Voltage Evaluation
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 EVM Assembly and Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks

1.1 Introduction

The UCC28750EVM-071 has frequency foldback and burst mode enable higher efficiency and standby performance at light load. Opto-coupled feed-back maintains a tightly regulated output with fast dynamic response to load transients. The controller further enhances the efficient operation with valley switching. The UCC287502 also includes a omprehensive protection features including UVLO/OVLO, OTP, OPP, OVP, OCP, brown-out detection, and options to latch and auto-restart. The UCC287502 also uses dithering of the gate drive helps to ease EMI compliance. This user’s guide provides the schematic, component list, assembly drawing, art work, and test set up necessary to evaluate the UCC287502 in a typical off-line converter application.