USB#_VBUS powering sequence

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USB#_VBUS powering sequence

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AhmedShameemM_H
Contributor I

Dear Sir,

In the Vybrid datasheet's Power sequencing section it is given that USB_VBUS can be independent of any other power supply.

Vybrid VBUS.png

Can we provide 5V to USB#_VBUS before providing all the other power supply?

Waiting for your valuable replay.

Thank you in Advance.

Regards,

Shameem

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anthony_huereca
NXP Employee
NXP Employee

Hi Shameem,

  Yes, you can provide VBUS before the other power supplies. That was a former requirement on 1.0 silicon, but is no longer true on 1.1 (current production) silicon. The datasheet will be updated to reflect this.

-Anthony

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anthony_huereca
NXP Employee
NXP Employee

Hi Shameem,

  Yes, you can provide VBUS before the other power supplies. That was a former requirement on 1.0 silicon, but is no longer true on 1.1 (current production) silicon. The datasheet will be updated to reflect this.

-Anthony

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AhmedShameemM_H
Contributor I

Ok

Thank you, Anthony for the information.

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