TIDT263 March   2022

 

  1.   Description
  2.   Features
  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 Load Regulation
    4. 2.4 Thermal Images
    5. 2.5 Bode Plot
  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 J4. Input power during short circuit is 48.02 V, 59 mA, and 2.83 W.

GUID-20220304-SS0I-RXGQ-V2LQ-T57RS1HP1DRN-low.png Figure 3-7 Output Current, 2 A/div, 20 ms/div, Measured 12.13 Apeak
GUID-20220304-SS0I-H5J5-D912-FZKVHMKCDHQR-low.png Figure 3-8 Output Voltage Recovery From Short Circuit, 2 V/div, 2 A/div, 5 ms/div

Figure 3-9 and Figure 3-10 show thermal plots during short circuit.

GUID-20220304-SS0I-QJV8-MST9-GPGZSZRMMBBF-low.jpg Figure 3-9 Thermal Plot During Short Circuit, Top
GUID-20220304-SS0I-VTW7-FHPD-JW43JCPQDK0S-low.jpg Figure 3-10 Thermal Plot During Short Circuit, Bottom (Diode D100)