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Maybe it would be beater to change the switch part, so the MOSFET Q1 should be triggered by the USB and not the VDD. I think it would be beater this way because the USB voltage is constant, +5V, and VDD is not, it can be from 12V to 50V, and the gate current would not be the same. See the reference picture:
The text was updated successfully, but these errors were encountered:
A possible problem with this approach is the USB Voltage, which could be as low as 4.5V (by specification), and where the diode adds additional 0.3-0.6V drop. Means about 4V at the output side.
No problem for my internal circuit, and I hope the same goes for your circuit on the ProStep Connector. But we should clarify specification first.
Maybe it would be beater to change the switch part, so the MOSFET Q1 should be triggered by the USB and not the VDD. I think it would be beater this way because the USB voltage is constant, +5V, and VDD is not, it can be from 12V to 50V, and the gate current would not be the same. See the reference picture:
The text was updated successfully, but these errors were encountered: