SLVT223 August   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Magnetics Construction
      1. 1.2.1 LLC Transformer
      2. 1.2.2 Resonant Inductor
    3. 1.3 Considerations
    4.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
    5. 1.4 Precautions
    6. 1.5 Dimensions
  7. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
      1.      225V Input Voltage
      2.      250V Input Voltage
      3.      300V Input Voltage
      4.      350V Input Voltage
      5.      400V Input Voltage
      6.      450V Input Voltage
    3. 2.3 Load Regulation
    4. 2.4 Thermal Images
      1. 2.4.1 Top Side
      2. 2.4.2 Bottom Side
    5. 2.5 Bode Plots
  8. 3Waveforms
    1. 3.1 Switching
      1. 3.1.1 Switching Primary Side
        1. 3.1.1.1 225V Input Voltage
        2. 3.1.1.2 300V Input Voltage
        3. 3.1.1.3 350V Input Voltage
        4. 3.1.1.4 400V Input Voltage
        5. 3.1.1.5 450V Input Voltage
      2. 3.1.2 Switching Secondary Side
        1. 3.1.2.1 225V Input Voltage
        2. 3.1.2.2 300V Input Voltage
        3. 3.1.2.3 350V Input Voltage
        4. 3.1.2.4 400V Input Voltage
        5. 3.1.2.5 450V Input Voltage
    2. 3.2 Output Voltage Ripple
      1. 3.2.1 225V Input Voltage
      2. 3.2.2 350V Input Voltage
      3. 3.2.3 450V Input Voltage
    3. 3.3 Load Transients
      1. 3.3.1 225V Input Voltage
      2. 3.3.2 350V Input Voltage
      3. 3.3.3 450V Input Voltage
    4. 3.4 Start-up Using Secondary Side Soft-Start
      1. 3.4.1 Start-Up Under No Load Conditions
        1. 3.4.1.1 225V Input Voltage
        2. 3.4.1.2 350V Input Voltage
        3. 3.4.1.3 450V Input Voltage
      2. 3.4.2 Start-up under Full Load Conditions
        1. 3.4.2.1 225V Input Voltage
        2. 3.4.2.2 350V Input Voltage
        3. 3.4.2.3 450V Input Voltage
  9. 4Trademarks

250V Input Voltage

Voltage [V] Current [A] Power [W] Voltage [V] Current [A] Power [W] Losses [W] Efficiency [%]
249.100 1.274 317.279 47.610 6.244 297.277 20.002 93.7
249.100 1.032 257.096 47.600 5.001 238.048 19.049 92.6
249.000 0.839 208.787 47.600 3.996 190.210 18.577 91.1
249.000 0.643 160.032 47.600 2.992 142.419 17.613 89.0
249.000 0.451 112.175 47.600 2.006 95.486 16.689 85.1
249.400 0.240 59.731 47.610 1.002 47.681 12.050 79.8