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

350V Input Voltage

Voltage [V] Current [A] Power [W] Voltage [V] Current [A] Power [W] Losses [W] Efficiency [%]
350.000 0.907 317.380 47.620 6.244 297.339 20.041 93.7
350.000 0.732 256.340 47.620 5.001 238.148 18.192 92.9
350.000 0.592 207.305 47.620 3.997 190.337 16.968 91.8
350.100 0.453 158.560 47.620 2.992 142.479 16.081 89.9
350.100 0.310 108.426 47.620 2.005 95.478 12.948 88.1
350.100 0.169 59.062 47.620 1.002 47.710 11.351 80.8