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

4.4 Soft Startup

Display CH1 (PH1) and CH2 (VOUT1) [DC coupled, 500 mV/div] on oscilloscope to monitor the switching phase and the soft start profile of the output voltage as shown in Figure 6.

TPS7H4001QEVM-CVAL SS_72A_2.pngFigure 6. VOUT Soft Start (VIN = 5 V, VOUT = 1 V, IOUT = 72 A)
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