TIDT389 March   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Considerations
    3. 1.3 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graph
    2. 2.2 Efficiency Data
      1. 2.2.1 10V Input Voltage
      2. 2.2.2 12V Input Voltage
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients

1.2 Considerations

  • Unless otherwise noted, the input voltage was set to 10V at the input of the boost converter (after the input filter)
  • The voltage drop from the input terminal to the voltage sense point was about 405mV at 109A input current (1kW output power)
  • Electrolytic input capacitance 2mF, electrolytic output capacitance 1mF
  • Heat sinks are mounted to the bottom side and artificial airflow was provided during testing. No other components are mounted on the bottom side.
  • Peak output power (1kW) was tested at 10V input voltage measured directly at the input of the converter. Converter efficiency at 25A was about 92.5%