TIDT295 August   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 VOUT Regulation
    3. 2.3 Thermal Images
  6. 3Waveforms
    1. 3.1 Start-up Waveforms
    2. 3.2 Output Voltage Ripple and Noise
    3. 3.3 Load Dynamic
    4. 3.4 Switching Node
    5. 3.5 Short-Circuit Protection

Thermal Images

All images were captured with the unit under test (UUT) enclosed in a 30 cm × 45 cm × 20 cm plexiglass box, 25ºC ambient, after a 30-minute warm up.

Figure 2-4 through Figure 2-7 illustrate the charge mode thermal images.

GUID-20220812-SS0I-1XFW-WPXN-ZJCKMMLBJKHT-low.jpgFigure 2-4 20 VBUS and 20 VBAT Full Charging Mode
GUID-20220812-SS0I-6G5M-WSK5-VGLT3TCLBJ3S-low.jpgFigure 2-6 9 VBUS and 20 VBAT Full Charging Mode
GUID-20220812-SS0I-6K94-VQBN-L1XV9MXM91BJ-low.jpgFigure 2-5 15 VBUS and 20 VBAT Full Charging Mode
GUID-20220812-SS0I-GRHD-SPB9-WFJPF3ZHXNCZ-low.jpgFigure 2-7 5 VBUS and 20 VBAT Full Charging Mode

Figure 2-8 through Figure 2-10 illustrate the OTG mode thermal images.

GUID-20220812-SS0I-1S0V-JRS8-ZMM5CGJSFWLV-low.jpgFigure 2-8 18 VBAT to 9 V, 3 A OTG Full Load
GUID-20220812-SS0I-P4JF-FZ9V-J1JLB9LZMGVK-low.jpgFigure 2-10 18 VBAT to 20 V, 3 A OTG Full Load
GUID-20220812-SS0I-HQBL-F5FS-VFP4KTHJBBJ6-low.jpgFigure 2-9 18 VBAT to 15 V, 3 A OTG Full Load