TIDT365 November   2023

 

  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 POUT
    4. 2.4 Idle Power Loss
    5. 2.5 THD
    6. 2.6 Thermal Images
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Dead Time
    3. 3.3 Minimum Pulse on Time of LI
    4. 3.4 Output Waveform

2.5 THD

The THD image is shown in the following figure.

The class D power stage is open loop configuration, so the THD data is just for reference. The test conditions for the results in Figure 3-22 include a 1-kHz sine-wave frequency, a 4-Ω resistor with heat sink, and no airflow.

GUID-20231029-SS0I-BGLD-74WP-2K5JMKGJ2RBW-low.jpgFigure 2-9 THD