AM2432: USB VBUS query

Zekun Bai

Part Number: AM2432

Tool/software:

Customer want to implement voltage detect 5V via this USB0_VBUS pin. Is it feasible?

Regards

Zekun

0 Kallikuppa Sreenivasa 5 months ago

Hello Zekun,

Thank you for the query.

The VBUS is used as part of the USB interface.

VBUS is connected through a divider as per the data sheet for the device.

For host, this is optional.

Regards,

Sreenivasa

0 Zekun Bai 5 months ago

HI Sreenivasa

Thanks, For AM243 as host, can VBUS used to detect external 5V power supply?

Regards

Zekun

0 Kallikuppa Sreenivasa 5 months ago in reply to Zekun Bai

Hello Zekun,

Thank you.

Are you able to share the use case for me to check. As i understand, the VBUS IO does not monitor the VBUS when configured as host.

A USB power switch with OC indication is recommended to be used. This pin can be connected to any of the SOC IO to detect USB VBUS fault.

Regards,

Sreenivasa

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