SLVUBW7 May   2020

 

  1.   TPS7H4001QEVM-CVAL Evaluation Module User's Guide
    1.     Trademarks
    2. 1 TPS7H4001QEVM-CVAL Overview
      1. 1.1 Features
      2. 1.2 Applications
    3. 2 TPS7H4001QEVM-CVAL Default Configuration
    4. 3 TPS7H4001QEVM-CVAL Initial Setup
    5. 4 TPS7H4001QEVM-CVAL Testing
      1. 4.1 Output Voltage Regulation
      2. 4.2 Quadrature Phases
      3. 4.3 Output Voltage Ripple
      4. 4.4 Soft Startup
      5. 4.5 Transient Response to Positive/Negative Load Step (27 A to 67 A to 27 A)
      6. 4.6 Loop Frequency Response
      7. 4.7 Efficiency
      8. 4.8 Current Limiting
      9. 4.9 Current Sharing
    6. 5 TPS7H4001QEVM-CVAL EVM Schematic
    7. 6 TPS7H4001QEVM-CVAL Bill of Materials (BOM)
    8. 7 Board Layout
    9. 8 Appendix A

1 TPS7H4001QEVM-CVAL Overview

The TPS7H4001-SP is a radiation hardened, 7-V, 18-A synchronous step-down converter with integrated high-side and low-side MOSFETs. High efficiency and efficient usage of space are achieved through low resistance MOSFETs and a current mode control implementation.

The EVM is configured in a default state to accept a 5-V input but can be modified to disable or change the under voltage lock out (UVLO) protection, allowing for any input voltage from 3 V to 7 V. The EVM is also configured for a 1-V output. . The regulated output voltage can be modified by changing one resistor on the board. The TSP7H4001-SP has a dedicated soft start, enable, and adjustable slope compensation pins providing design flexibility to meet specific application requirements.

Finally, as shown in Figure 1, this EVM is populated and configured to support four channel parallel operation. However, users may wish to evaluate 1-channel, 2-channel, or 3-channel operation using this same EVM. Please refer to series of application reports that are available outlining the modifications needed to the BOM to make such conversions.