TIDT363 December   2023

 

  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 Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 EMI
      1. 2.4.1 Conducted Emissions
        1. 2.4.1.1 Noise Floor
        2. 2.4.1.2 Conducted Emissions Measurement
      2. 2.4.2 Radiated Emissions
        1. 2.4.2.1 Frequencies of 150 kHz to 30 MHz
          1. 2.4.2.1.1 Noise Floor
          2. 2.4.2.1.2 Emissions
        2. 2.4.2.2 Frequencies of 30 MHz to 200 MHz
          1. 2.4.2.2.1 Horizontal Polarization
            1. 2.4.2.2.1.1 Noise Floor
            2. 2.4.2.2.1.2 Emissions
          2. 2.4.2.2.2 Vertical Polarizations
            1. 2.4.2.2.2.1 Noise Floor
            2. 2.4.2.2.2.2 Emissions
        3. 2.4.2.3 Frequencies from 200 MHz to 1 GHz
          1. 2.4.2.3.1 Horizontal Polarization
            1. 2.4.2.3.1.1 Noise Floor
            2. 2.4.2.3.1.2 Emissions
          2. 2.4.2.3.2 Vertical Polarization
            1. 2.4.2.3.2.1 Noise Floor
            2. 2.4.2.3.2.2 Emissions
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Load Transients
    3. 3.3 Start-Up

2.4 EMI

Conducted EMI tests were done in a shielded test chamber.

Radiated EMI tests were done in a CISPR25 conforming shielded test chamber.

For both types of tests, a freshly charged 12-V lead acid battery was used as a power source and a 220-mΩ resistor (Arcol HS100 R22 J) was used as a load, resulting in a load current of 23 A, which is above the targeted 22-A nominal output current. All EMI tests were done with dual random spread spectrum (DRSS) enabled.

The following measurements were done: