This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • Resolved

HD3SS3220: CC Pin detect in Power delivery application

Intellectual 285 points

Replies: 11

Views: 240

Part Number: HD3SS3220

Hi Ti,

Our product needs a Type-C connector, so we want to use HD3SS3220. However after I read the datasheet, I realized CC detect only support up to 3A. And it does not support PD (power delivery). 

However our product may need to be powered by PD, how to resolve this problem? Thanks!

cheers

Fan

  • you need PD control together with HD3SS3220
  • In reply to Brian Zhou:

    Hi Brian,
    Thanks for your reply. Do you have any suggestion about PD controller? Is there any reference design around?

    cheers
    Fan
  • In reply to Fan Wu:

    TPS65983B
  • In reply to Brian Zhou:

    If you have a external processor with i2c you can consider tusb422.

    And consider HD3SS3212 switch. For usb only applications.

    If you need video we have other options.

  • In reply to Brian Zhou:

    Hi Brian,
    I found TPS65987D as well. Is the only difference between them that TPS65987D has internal power switch?
    Thanks!
    cheers
    Fan
  • In reply to WIN Maung:

    Hi Win,
    Thanks for your suggestion. I read the datasheet of TUSB422. Looks like it just do the CC communication without controlling the VBUS loop. How can it switch off VBUS to system before CC communication done?
    cheers
    Fan
  • In reply to Fan Wu:

    you can check fig 76 in 422 datasheet for vbus control
  • In reply to Brian Zhou:

    Hi Brian,

    That design has several GPIOs from SOC to control MOSFETs. However, from my understanding, SOC only work when it has power.

    If battery is flat or some system does not have battery inside (like Dongle which powered from USB only), can this chip still work?

    Is it better to go with TPS65987d?

    Thanks!

    cheers

    Fan

  • In reply to Fan Wu:

    maybe easier to use TPS65987d
  • In reply to Brian Zhou:

    Hi Brian,

    Thank you! Do you have time to review the schematics once I finished design? If yes, can you give me your email address?

    cheers

    Fan

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.