TIDT193 August   2020  – MONTH 

 

  1.   Description
  2. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
  3. 2Testing and Results
    1. 2.1 Thermal Images
    2. 2.2 Efficiency and Power Dissipation graphs
    3. 2.3 Efficiency and Power Dissipation Data
    4. 2.4 Voltage Regulation
  4. 3Waveforms
    1. 3.1 Start-up
    2. 3.2 Switch Node
    3. 3.3 Output Voltage Ripple
    4. 3.4 Load Transients
    5. 3.5 Short-Circuit Recovery Response
    6. 3.6 Input Voltage Transient Response

3.1 Start-up

The following figure shows output voltage startup waveform (BLUE) after the application of 30-V input (YELLOW) with the 14-V output loaded to 130 mA.

GUID-20200728-CA0I-78ZB-GHF9-CQBMMR13GRTC-low.jpgFigure 3-1 Output Voltage Start-up Waveform (VIN: 5 V/div, VOUT: 5 V/div, 50 ms/div)

The following figure shows the output voltage startup waveform (BLUE) after the application of 30-V input (YELLOW) with the 14-V output loaded to 0 mA.

GUID-20200728-CA0I-THLM-QMVP-W74HJ9DMR2JL-low.jpgFigure 3-2 Output Voltage Start-up Waveform (VIN: 5 V/div, VOUT: 5 V/div, 50 ms/div)

The following figure shows the output voltage startup waveform (BLUE) after the application of 60-V input (YELLOW) with the 14-V output loaded to 130 mA.

GUID-20200728-CA0I-GF7F-ZS9Q-MCBZJMCV3NG6-low.jpgFigure 3-3 Output Voltage Start-up Waveform (VIN: 20 V/div, VOUT: 5 V/div, 50 ms/div).

The following figure shows the output voltage startup waveform (BLUE) after the application of 60-V input (YELLOW) with the 14-V output loaded to 0 mA.

GUID-20200728-CA0I-2NNH-3ZNW-0TGMPK94LFXM-low.jpgFigure 3-4 Output Voltage Start-up Waveform (VIN: 20 V/div, VOUT: 5 V/div, 50 ms/div).

The following figure shows the output voltage startup waveform (BLUE) after the application of 120-V input (YELLOW) with the 14-V output loaded to 130 mA.

GUID-20200728-CA0I-LCG0-K0WB-BNNJ9KRNCMFZ-low.jpgFigure 3-5 Output Voltage Start-up Waveform (VIN: 20 V/div, VOUT: 5 V/div, 50 ms/div).

The following figure shows the output voltage startup waveform (BLUE) after the application of 120-V input (YELLOW) with the 14-V output loaded to 0 mA.

GUID-20200728-CA0I-47WX-FNVG-WXB51WZPJX9H-low.jpgFigure 3-6 Output Voltage Start-up Waveform (VIN: 20 V/div, VOUT: 5 V/div, 50 ms/div).