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

3.4 Load Transients

The following image illustrates the 14-V output voltage (AC coupled) when the load current is stepped between 80 mA and 130 mA (50-mA load step), VIN = 30 V.

GUID-20200728-CA0I-P8NC-Q3FR-TQVDL8BWCCPM-low.jpgFigure 3-19 Load Transient, 14-V Output Voltage (AC Coupled) (VOUT: 100 mV/div, IOUT: 50 mA/div, 1 ms/div)

The following image illustrates the 14-V output voltage (AC coupled) when the load current is stepped between 130 mA and 80 mA (50-mA load step), VIN = 30 V.

GUID-20200728-CA0I-FMH4-PCMX-ZD2JP60FLPV7-low.jpgFigure 3-20 Load Transient, 14-V Output Voltage (AC Coupled) (VOUT: 100 mV/div, IOUT: 50 mA/div, 1 ms/div)

The following image illustrates the 14-V output voltage (AC coupled) when the load current is stepped between 80 mA and 130 mA (50-mA load step), VIN = 120 V.

GUID-20200728-CA0I-Z9SW-PJ4H-MB74QMJTW2PP-low.jpgFigure 3-21 Load Transient, 14-V Output Voltage (AC Coupled) (VOUT: 100 mV/div, IOUT: 50 mA/div, 1 ms/div).
The following image illustrates the 14-V output voltage (AC coupled) when the load current is stepped between 130 mA and 80 mA (50-mA load step), VIN = 120 V.
GUID-20200728-CA0I-6QQ1-BHFR-JRK4B3XWXSNN-low.jpgFigure 3-22 Load Transient, 14-V Output Voltage (AC Coupled) (VOUT: 100 mV/div, IOUT: 50 mA/div, 1 ms/div).