TIDT441 July   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Dimensions
    3. 1.3 Precautions
  7. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
      1. 2.2.1 28V Output Voltage
      2. 2.2.2 20V Output Voltage
      3. 2.2.3 15V Output Voltage
      4. 2.2.4 12V Output Voltage
      5. 2.2.5 9V Output Voltage
      6. 2.2.6 5V Output Voltage
    3. 2.3 Thermal Images
      1. 2.3.1 Buck Mode
      2. 2.3.2 Boost Mode
    4. 2.4 Bode Plots
    5. 2.5 Digital Communications: USB-C With DP ALT Mode
  8. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients

2.5 Digital Communications: USB-C With DP ALT Mode

PMP31344 USB-C With DP ALT Mode – Setup Figure 2-10 USB-C With DP ALT Mode – Setup

The system topology includes the USB-C with DP ALT mode ref board (TPS26744E, TUSB564, TS3DV642, FPD-Link Serializer) and a UH984 EVM connected to a display:

  • Firmware is programmed to TPS26744E for PD communication and USB/DP mode selection over CC line
  • The firmware is programmed to FPD-Link Serializer external SPI Flash
  • The register configurations are programmed into both FPD-Link serializer and de-serializer
  • Connect cellphone/laptop through USB Type-C for display casting
PMP31344 USB-C With DP ALT Mode - Signal Chain Figure 2-11 USB-C With DP ALT Mode - Signal Chain