SLVU953A October   2013  – May 2021 TPS65580 , TPS65581

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
  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 Load Transient Response
    7. 4.7 Input Voltage Ripple
    8. 4.8 Start-Up
  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

4.8 Start-Up

The TPS65581EVM-575 start-up waveform for CH1 relative to VIN is shown in Figure 4-11. Load = 4 Ω resistive. The start up waveforms for CH2 and CH3 are similar and not shown.

GUID-CFDA3260-1031-49E7-BB39-9A8D736A11D1-low.gifFigure 4-11 TPS65581EVM-575 CH1 Start-Up Relative to VIN

The TPS65581EVM-575 start-up waveform for CH1 relative to enable (EN) is shown in Figure 4-12. Load = 4 Ω resistive. The start up waveforms for CH2 and CH3 are similar and not shown.

GUID-6361F9C9-55EB-409A-A2F9-F5D7ADA506DC-low.gifFigure 4-12 TPS65581EVM-575 CH1 Start-Up Relative to EN