SLUUB60B May   2015  – August 2021

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Description
    1. 2.1 Typical End-User Applications
    2. 2.2 EVM Features
  4. 3 EVM Electrical Performance Specifications
  5. 4 Schematic
  6. 5 Test Setup
    1. 5.1 Test and Configuration Software
      1. 5.1.1 Description
      2. 5.1.2 Features
    2. 5.2 Test Equipment
    3. 5.3 The PWR-681EVM
    4. 5.4 List of Test Points, Jumpers ans Switch
  7. 6 EVM Configuration Using the Fusion GUI
    1. 6.1 Configuration Procedure
  8. 7 Test Procedure
    1. 7.1 Line/Load Regulation Measurement Procedure
    2. 7.2 Efficiency
    3. 7.3 Bode Plot Measurement Procedure
    4. 7.4 Equipment Shutdown
  9. 8 Performance Data and Typical Characteristic Curves
    1. 8.1  Efficiency
    2. 8.2  Load Regulation
    3. 8.3  Line Regulation
    4. 8.4  Transient Response
    5. 8.5  Output Ripple
    6. 8.6  Control On
    7. 8.7  Control Off
    8. 8.8  Overcurrent Protection
    9. 8.9  Control Loop Bode Plot
    10. 8.10 Thermal Image
  10. 9 Fusion GUI
  11. 10EVM Assembly Drawing and PCB Layout
  12. 11List of Materials
  13. 12Revision History

1 Introduction

The PWR681EVM evaluation module uses either the TPS544B25 or TPS544C25 devices. The TPS544B25 and TPS544C25 are highly integrated synchronous buck converters that are designed for up to 20-A or 30-A current output, respectively.