SLYT822 March   2022 ISO7710 , ISOUSB211 , TPS25910 , TUSB320LAI

 

  1. 1Introduction
  2. 2Traditional host and peripheral implementations
  3. 3USB Type-C DRP
  4. 4Implementing an isolated USB Type-C DRP
  5. 5Implementation with actual components
  6. 6Demonstration of DRP operation with the ISOUSB211 EVM
  7. 7Conclusion

Conclusion

A USB Type-C DRP allows connection to either a host or a peripheral on the same connector. An isolated USB repeater that can automatically assign upstream- and downstream-facing directions based on detecting an external 1.5-kΩ pullup resistor enables the implementation of an isolated USB Type-C DRP. Such a solution saves on connectors, needs only one isolated USB repeater, saves board space, and brings flexibility to industrial applications.