SLVUD74A April   2025  – June 2025 LM72880-Q1

 

  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 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Test Setup and Procedure
      1. 2.1.1 EVM Connections
      2. 2.1.2 Test Equipment
      3. 2.1.3 Recommended Test Setup
        1. 2.1.3.1 Input Connections
        2. 2.1.3.2 Output Connections
        3. 2.1.3.3 I2C Connections
      4. 2.1.4 Test Procedure
        1. 2.1.4.1 Graphic User Interface (GUI)
          1. 2.1.4.1.1 Quick Overview
        2. 2.1.4.2 Basic Test Procedure
  9. 3Implementation Results
    1. 3.1 Test Data and Performance Curves
      1. 3.1.1 Efficiency
      2. 3.1.2 Operating Waveforms
        1. 3.1.2.1 Start-Up and Shutdown
        2. 3.1.2.2 Switching
        3. 3.1.2.3 Load Transient (CV), ISET Modulation (CC)
      3. 3.1.3 Thermal Performance
      4. 3.1.4 EMI Performance
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Device and Documentation Support
    1. 6.1 Device Support
      1. 6.1.1 Development Support
    2. 6.2 Documentation Support
      1. 6.2.1 Related Documentation
        1. 6.2.1.1 PCB Layout Resources
        2. 6.2.1.2 Thermal Design Resources
  13. 7Revision History

2.1.2 Test Equipment

  • Power Supply: use an input voltage source capable of supplying 0V to 70V and 7A.
  • Voltmeter 1: measure the input voltage at VIN+ to VIN–.
  • Voltmeter 2: measure the output voltage at VOUT+ to VOUT–.
  • Ammeter 1: measure the input current. Connect to the power supply and VIN+.
  • Load 1: the load must be an electronic load capable of constant-voltage (CV) and constant-current (CC) regulation. The electronic load must be capable of sinking 8A at 20V and below.

Oscilloscope: with the scope set to 20MHz bandwidth and AC coupling, measure the output voltage ripple directly across an output capacitor with a short ground lead normally provided with the scope probe. TI does not recommend using a long-leaded ground connection because this can induce additional noise given a large ground loop. To measure other waveforms, adjust the oscilloscope as needed. Always use caution when touching any circuits that can be live or energized.