Confusion regarding CYPD3135 and Apple 140W Charger

[hasechris92]

Hello folks,

i recently watched this video [1] where one of the new 140W Type C USB Chargers from Apple is getting his teardown. I also have this power adapter at home and i can "confirm" it does 28V at 5 Amps.

Then i searched for the Type C Controller, which is CYPD3135. Now im confused because the CYPD3135 does not do USBC EPR negotiation according to the product page and the product datasheet.

Can someone help me?

[1] https://www.youtube.com/watch?v=GKs9Sf84UTE&t=1s

[Abhilash_P]

Hi,

  Thank you for posting on the Infineon community. 

Currently the only USB C controller from Infineon that supports EPR mode is PMG1. 

The CCG3 used in the apple charger as shown, is having a custom firmware based on their application. Let me get back to you with detailed analysis. 

Regards,

Abhilash P

[Abhilash_P · Accepted solution]

Hi,

    In this design the CCG3 stack has been modified to support EPR. But it has to be done in such a way that the hardware design of CCG3 has to be modified so that it doesnt see 28V.

For newer EPR designs please refer PMG1-S3. 

Regards,

Abhilash P