TIDT256A March   2022  – March 2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 LM5156-Q1
      1. 1.1.1 Loading LM5156-Q1
      2. 1.1.2 LM5156-Q1 SEPIC Bode Loop Testing
    2. 1.2 Loading UCC14240-Q1
    3. 1.3 UCC5870-Q1 and UCC5870-Q1 EVM GUI
    4. 1.4 Voltage and Current Requirements
    5. 1.5 Required Equipment
    6. 1.6 Considerations
    7. 1.7 Dimensions
  5. 2Testing and Results
    1. 2.1 SEPIC Efficiency Graphs
    2. 2.2 SEPIC Efficiency Data
    3. 2.3 SEPIC Bode Plots
    4. 2.4 Thermal Images
  6. 3Waveforms
    1. 3.1 SEPIC Switching
    2. 3.2 SEPIC Output Voltage Ripple
    3. 3.3 SEPIC Load Transients
    4. 3.4 SEPIC Start-Up Sequence
    5. 3.5 Isolated Bias Supply Start Up and Shutdown
    6. 3.6 Isolated Gate Drive

1.4 Voltage and Current Requirements

Table 1-4 Voltage and Current Requirements
ParameterSpecifications
Input Voltage

9 V–18 V with dips to 6 V and surges to 42 V

Output Voltage24 V
Output Current130 mA
Switching Frequency445 kHz (preferred) or 2 MHz