TIDT300 August   2022

 

  1.   Description
  2.   Feature
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Short-Circuit Protection
    5. 3.5 Start-Up Sequence

3.4 Short-Circuit Protection

Short at output connector J9. Input power during short circuit is 48.01 V, 150 mA, and 7.20 W.

GUID-20220719-SS0I-JLMQ-1RVB-FGBMNMW6L93N-low.jpgFigure 3-8 Output Current, 5 A/div, 20 ms/div, Measured 12. 2 Apeak
GUID-20220720-SS0I-N0SS-WPBT-GVKZTHKWKLNQ-low.jpgFigure 3-9 Output Voltage Recovery From Short Circuit, 2 V/div, 2 A/div, 5 ms/div

Figure 3-10 and Figure 3-11 show thermal plots during short circuit.

GUID-20220720-SS0I-FZLC-TVTM-VM8TGJPCZJ9R-low.jpgFigure 3-10 Thermal Plot During Short Circuit, Top
GUID-20220720-SS0I-JN4K-WJN3-5BZ9MGSFXLH1-low.jpgFigure 3-11 Thermal Plot During Short Circuit, Bottom