SLVU578A December   2011  – September 2021 TPS54428

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
    2. 3.2 Output Filter and Closed-Loop Response
  5. 4Test Setup and Results
    1. 4.1  Input/Output Connections
    2. 4.2  Start-Up Procedure
    3. 4.3  Efficiency
    4. 4.4  Load Regulation
    5. 4.5  Line Regulation
    6. 4.6  Frequency
    7. 4.7  Load Transient Response
    8. 4.8  Output Voltage Ripple
    9. 4.9  Input Voltage Ripple
    10. 4.10 Start-Up and Shut-Down
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic, Bill of Materials, and Reference
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
    3. 6.3 Reference
  8. 7Revision History

4.10 Start-Up and Shut-Down

The TPS54428EVM-052 start-up and shut-down waveforms relative to VIN with no load are shown in Figure 4-12 and Figure 4-13.

GUID-D36B3C2E-F9E2-4C35-BF71-08B227E3D9CF-low.gifFigure 4-12 TPS54428EVM-052 Start-Up Relative to VIN
GUID-6597D86F-F788-4435-93A9-157E358146D0-low.gifFigure 4-13 TPS54428EVM-052 Shut-down Relative to VIN

The TPS54428EVM-052 start-up and shut-down waveforms relative to enable (EN) with no load are shown in Figure 4-14 and Figure 4-15.

GUID-27C54B55-ACDE-42D9-BC9A-2B8F0AEB0D2D-low.gifFigure 4-14 TPS54428EVM-052 Start-Up Relative to EN
GUID-5FF21818-A82A-43EF-98E4-6827BC72A703-low.gifFigure 4-15 TPS54428EVM-052 Shut-down Relative to EN