TIDT426 December   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 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 EMI
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple

Description

This reference design is a 90W automotive charger for dual USB Type-C® power delivery (PD) with 60W maximum power per port. The TPS25772-Q1 is used as a dual USB Type-C PD controller with a buck-boost regulator. The TPS55289-Q1 is used as a buck-boost regulator for another port. The design uses the TUSB4020BI-Q1 two-port USB 2.0 hub which provides USB high-speed and full-speed connections.

The board maximum efficiency is 96.1%. The board is compliant with the stringent CISPR 25 Class 5 conducted and radiated electromagnetic interference (EMI).