TIDT224 March   2021

 

  1. 1Description
  2. 2Test Prerequisites
    1. 2.1 Voltage and Current Requirements
    2. 2.2 Required Equipment
  3. 3Testing and Results
    1. 3.1 Thermal Images
    2. 3.2 Efficiency and Power Dissipation Graphs
    3. 3.3 Efficiency and Power Dissipation Data
    4. 3.4 Voltage Regulation Graphs
    5. 3.5 Cross-Load Voltage Regulation Data and Efficiency
  4. 4Waveforms
    1. 4.1 Start-up Sequence
    2. 4.2 Switch Node
    3. 4.3 Output Voltage Ripple
    4. 4.4 Load Transients

4.3 Output Voltage Ripple

The following image shows the 15-V output ripple voltage (AC coupled). The input voltage is 12 VDC and both 15-V outputs are loaded to 100 mA.

GUID-20210223-CA0I-JWHS-ZVLR-BJSBTZRHTLZD-low.jpg
100 mV/div, 2 µs/div
Figure 4-12 Ripple Voltage, 15-V Output

The following image shows the 15-V output ripple voltage (AC coupled). The input voltage is 15 VDC and both 15-V outputs are loaded to 100 mA.

GUID-20210223-CA0I-K2HT-GLWV-321L4FZ3QCFZ-low.jpg
100 mV/div, 2 µs/div
Figure 4-13 Ripple Voltage, 15-V Output