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About protection circuit for the USB VBUS/BP/BM signals to protect the latch-up in i.MX6DQ.

Question asked by Keita Nagashima on Jan 19, 2015
Latest reply on Sep 7, 2016 by Yuri Muhin

Dear Sir or Madam,



My customer assume the case of connecting the USB OTG device with no input the power to i.MX6.

Until a power is supplied to MX6 from PMIC, is it necessary to design a protection circuit to the i.MX6DQ's USB VBUS/BP/BM signals, to protect the latch-up occurrence?

(BTW, the protection circuit isn't implemented on FSL's SABRE board)


Best Regards,