TIDT349 January   2024

 

  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
    5. 1.5 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Charge Mode Start-Up Waveform
    2. 3.2 OTG Mode Start-Up Waveform
    3. 3.3 Voltage Transition at OTG Mode
    4. 3.4 Ripple and Noise at OTG Mode
    5. 3.5 Load Transients at OTG Mode
    6. 3.6 Switching Waveform
    7. 3.7 Overcurrent Protection at OTG Mode
    8. 3.8 Short-Circuit Protection at OTG Mode
    9. 3.9 Short-Circuit Protection at Charge Mode

3.1 Charge Mode Start-Up Waveform

Figure 3-32 through Figure 3-4 show the charging waveforms with different input source voltage negotiated on the USB Type-C port. Input source voltage, battery voltage, as well as charge current were captured during the test.

GUID-20230812-SS0I-L0LS-B42T-KSCLNSQWNV4P-low.pngFigure 3-1 5Vsys to 10S BAT = 40V Charge Mode
GUID-20230812-SS0I-2CSW-1HB1-JRLD1PMTQR5D-low.pngFigure 3-3 15Vsys to 10S BAT = 40V Charge Mode
GUID-20230812-SS0I-C9XX-9WF2-R5GRRQNZPGXR-low.pngFigure 3-2 9Vsys to 10S BAT = 40V Charge Mode
GUID-20230812-SS0I-JXM8-DMDF-N4NQTCLM13F2-low.pngFigure 3-4 20Vsys to 10S BAT = 40V Charge Mode