SLVUB56A July   2017  – September 2021 TPS54424

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Modifications
      1. 1.3.1 Output Voltage Setpoint
      2. 1.3.2 Adjustable UVLO
  3. 2Test Setup and Results
    1. 2.1  Input/Output Connections
    2. 2.2  Efficiency
    3. 2.3  Output Voltage Regulation
    4. 2.4  Load Transient and Loop Response
    5. 2.5  Output Voltage Ripple
    6. 2.6  Input Voltage Ripple
    7. 2.7  Powering Up
    8. 2.8  Powering Down
    9. 2.9  Start-Up Into Pre-Bias
    10. 2.10 Hiccup Mode Current Limit
  4. 3Board Layout
    1. 3.1 Layout
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

Hiccup Mode Current Limit

Figure 2-17, Figure 2-18, and Figure 2-19 show the TPS54424EVM-779 hiccup mode current limit feature. When an overcurrent event occurs, the TPS54424EVM-779 shuts down and restarts. Figure 2-17 shows the TPS54424EVM-779 entering hiccup mode in an overcurrent condition. Figure 2-18 shows TPS54424EVM-779 entering hiccup mode with a longer timescale to show the hiccup period. Figure 2-19 shows TPS54424EVM-779 exiting hiccup mode after the overcurrent condition is removed.

GUID-006159E6-BAC8-4A8C-B45D-600E6C9DA36F-low.gifFigure 2-17 TPS54424EVM-779 Hiccup Mode Current Limit
GUID-7684D60D-656C-42DF-AE6A-EE87F6D7097F-low.gifFigure 2-19 TPS54424EVM-779 Hiccup Mode Stop
GUID-89900767-D94E-4681-899A-383214E0C71B-low.gifFigure 2-18 TPS54424EVM-779 Hiccup Mode Start