According to the i.MX8M-Mini Datasheet, the operating range of USB1_VBUS and USB2_VBUS is from 0.8V to 3.6V.
And the absolute maximum rating is 3.95V.
But the voltage level of USB1_VBUS and USB2_VBUS on the i.MX8M-Mini EVK Base Board is still 5V.
Any impact or side effect if we use 5V on USB1_VBUS/USB2_VBUS for a long term usage?
Solved! Go to Solution.
Hi James
on i.MX8M Mini EVK schematic (SPF-31399) processor USBn_VBUS is connected
through R108/109 30K. According to Table 11-76. External Signals i.MX8MMini Reference Manual
https://www.nxp.com/docs/en/reference-manual/IMX8MMRM.pdf
The PHY VBUS0 pin must not connect directly to the 5v VBUS voltage
on the USB2.0 link. The PHY VBUS0 pin must be isolated by an external resistor
(REXT1) so that the PHY VBUS0 pin sees a lower voltage.
Design Tool
i.MX 8M Mini Evaluation Kit Design Files
i.MX 8M Mini Evaluation Kit | NXP
Best regards
igor
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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Hi James
on i.MX8M Mini EVK schematic (SPF-31399) processor USBn_VBUS is connected
through R108/109 30K. According to Table 11-76. External Signals i.MX8MMini Reference Manual
https://www.nxp.com/docs/en/reference-manual/IMX8MMRM.pdf
The PHY VBUS0 pin must not connect directly to the 5v VBUS voltage
on the USB2.0 link. The PHY VBUS0 pin must be isolated by an external resistor
(REXT1) so that the PHY VBUS0 pin sees a lower voltage.
Design Tool
i.MX 8M Mini Evaluation Kit Design Files
i.MX 8M Mini Evaluation Kit | NXP
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------