TIDT373 December   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency
    2. 2.2 Standby Power
    3. 2.3 Load Regulation
    4. 2.4 Line Regulation
    5. 2.5 Thermal Images
      1. 2.5.1 43 VAC Input Voltage
      2. 2.5.2 274 VAC Input Voltage
    6. 2.6 Bode Plots
  7. 3Waveforms
    1. 3.1 Switch Node Voltage
      1. 3.1.1 40 VDC Input Voltage
        1. 3.1.1.1 No Load
        2. 3.1.1.2 100-mA Load Current
        3. 3.1.1.3 1-A Load Current
      2. 3.1.2 630-VDC Input Voltage
        1. 3.1.2.1 No Load
        2. 3.1.2.2 500-mA Load Current
        3. 3.1.2.3 1-A Load Current
    2. 3.2 Output Voltage Ripple
      1. 3.2.1 40-VDC Input Voltage
      2. 3.2.2 325-VDC Input Voltage
      3. 3.2.3 630 VDC Input Voltage
    3. 3.3 Input Voltage Ripple
    4. 3.4 Load Transients
      1. 3.4.1 40-VDC Input Voltage
      2. 3.4.2 325-VDC Input Voltage
      3. 3.4.3 630-VDC Input Voltage
    5. 3.5 Start-Up Sequence
      1. 3.5.1 With Load
        1. 3.5.1.1 43-VAC Input Voltage
        2. 3.5.1.2 630-VDC Input Voltage
      2. 3.5.2 Without Load
        1. 3.5.2.1 40-VDC Input Voltage
        2. 3.5.2.2 630-VDC Input Voltage

3.1.2.2 500-mA Load Current

GUID-20231211-SS0I-9KHW-JTJJ-RGVKK4W7BGRL-low.png Figure 3-6 Switching at 630-VDC Input Voltage; 500-mA Load Current; 20 µs / div

The waveform in Figure 3-7 displays the same measurement as in Figure 3-6 with a different time scale.

GUID-20231211-SS0I-MFDP-BLZV-BWHPCFQGKLGQ-low.png Figure 3-7 Switching at 630-VDC Input Voltage; 500-mA Load Current; 800 ns / div