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USB EZ-PD™ Type-C

NoAr_1540581
Visitor II

Hello

Please tell me the pin processing when the following pins are not used.
・ SAFE_PWR_EN (4 pin)
・ GPIO_1 (8 pins)

 

Best Regards

Arai

 

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1 Solution
Pablo_EG
Moderator
Moderator

Hello Arai,

Thank you for posting on Infineon Community.

Q) Please tell me the pin processing when the following pins are not used.
・ SAFE_PWR_EN (4 pin)
A) As this is a gate driver output, it is a programmable current sink.
It can be either pull-up or pull-down depending on the status of the Type-C negotiation.

・ GPIO_1 (8 pins)
A) If not enabled, as this is a standard GPIO, it will be high-Z analog.

Best regards,
Pablo

 

View solution in original post

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5 Replies
Pablo_EG
Moderator
Moderator

Hello Arai,

Thank you for posting on Infineon Community.

Q) Please tell me the pin processing when the following pins are not used.
・ SAFE_PWR_EN (4 pin)
A) As this is a gate driver output, it is a programmable current sink.
It can be either pull-up or pull-down depending on the status of the Type-C negotiation.

・ GPIO_1 (8 pins)
A) If not enabled, as this is a standard GPIO, it will be high-Z analog.

Best regards,
Pablo

 

View solution in original post

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NoAr_1540581
Visitor II

Hello Pablo san

Thank you for your reply. Please let me check again just in case

If the pins ( SAFE_PWR_EN (4 pin),  GPIO_1 (8 pins))  are not used, is it okay to leave the terminal processing unconnected?

Best Regards

Arai

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Pablo_EG
Moderator
Moderator

Hello Arai san,

Yes, both pins should be left unconnected.

Please understand that if the SAFE_PWR_EN pin is not used, the PD capabilities mismatch function will be disabled.

Best regards,
Pablo

 

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NoAr_1540581
Visitor II
Hello  Pablo san
 
Thank you for your reply.
 
>Please understand that if the SAFE_PWR_EN pin is not used, the PD capabilities mismatch function will >be disabled.
⇒Yes, When an adapter other than a fixed PDO is connected (capabilities mismatch), we are considering a specification that the VBUS FET and SAFE_PWR FET will not open.
 
 
Best Regards
Arai
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Pablo_EG
Moderator
Moderator

Hello Arai san,

Thank you for your clarification.

Best regards,

Pablo

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