TIDT412A October   2024  – November 2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
    5. 2.5 PWM Duty Cycle Versus Output Voltage
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Transitions
    3. 3.3 Load Transients
    4. 3.4 High Current Load Transients
    5. 3.5 Start-up and Shutdown Sequences
    6. 3.6 Overvoltage Protection
    7. 3.7 Reverse Voltage Protection

Features

  • Able to provide 245W continuous power, and 875W peak power
  • Variable output voltage during operation across a 6V to 35V range
  • Design done with a simple two-phase converter, controlled by a single controller, LM5143A-Q1
  • Back-to-back diodes controlled by LM74930-Q1 with overvoltage and reverse voltage protection
  • No significant output voltage overshoot or undershoot for 6V to 35V VOUT transition
  • Peak efficiency of 97% at nominal load
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