Does i.MX8M mini USBx_VBUS pin can directly connect to the 1.8 V or 3.3V?

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Does i.MX8M mini USBx_VBUS pin can directly connect to the 1.8 V or 3.3V?

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Danube
Contributor IV

Does i.MX8M mini USBx_VBUS pin can directly connect to the 1.8 V or 3.3V?

WE know add 30k ohm when connect to 5V.

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Yuri
NXP TechSupport
NXP TechSupport

Hello,

  From hardware specs of the i.MX8Mm [Table 9 (Operating ranges) in IMX8MMCEC],

USB1_VBUS and USB2_VBUS should be in range 0.800 -- 3.60 V, typ = 1.40 V.

  So it is possible to connect the VBUS to any output of allowed voltage, but

it is USB VBUS input detect signal, which reflects USB VBUS, used in USB protocols.  

https://www.nxp.com/docs/en/data-sheet/IMX8MMCEC.pdf 

Regards,

Yuri.

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