SLVUCK1 April   2024 TPS7H4011-SP

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Description
  5. 2Features
  6. 3Evaluation Module Overview
    1. 3.1 Introduction
    2. 3.2 Kit Contents
    3. 3.3 Specification
    4. 3.4 Device Information
  7. 4Hardware
    1. 4.1 Setup
      1. 4.1.1 Jumper Configuration
      2. 4.1.2 Transient Load Circuit
    2. 4.2 Connector Descriptions
    3. 4.3 Best Practices
  8. 5Implementation Results
    1. 5.1 Default Configuration Results
    2. 5.2 Soft Startup
    3. 5.3 Voltage Ripple on VOUT
    4. 5.4 Load Step
    5. 5.5 Frequency Response
  9. 6Hardware Design Files
    1. 6.1 Schematics
    2. 6.2 PCB Layouts
    3. 6.3 Bill of Materials (BOM)
  10. 7Compliance Information
  11. 8Related Documentation

4.1.2 Transient Load Circuit

The TPS7H4011EVM-CVAL provides a transient load circuit using CSD16408Q5 N-Channel Power MOSFET, along with a 333mΩ load resistance created by 3, 1Ω chip resistors connected in parallel. While the CSD16408Q5 power MOSFET is capable of conducting the full 12A output current of the TPS7H4011-SP, the chip resistors are each rated for only 2W. When utilizing the transient circuit on the TPS7H4011EVM-CVAL, the signal sent to the MOSFET gate through TP30 (TRANS) can be modulated to keep the average power through the load resistors below the 2W rating.

For additional information on operation of the power MOSFET, please see the CSD16408Q5 data sheet.