On Sun, Jun 11, 2017 at 7:30 AM, Greg <[email protected]> wrote: > I'm using a Beaglebone Green Wireless with a solid-state-relay which > requires a 5 volt supply. > I'm trying to make the best choice for long-term longevity with the BBGW > mounted in a remote location. > > Is there any difference at all whether I use VDD_5V or SYS_5V? > > From what I can determine in the documentation, SYS_5V is merely a switched > version of VDD_5V which is passed through the power management IC > immediately after VDD_5V is applied. > > So I think there is only a very tiny difference in the timing of SYS_5V > coming up after applying 5 volts to the USB connector, > which in the case of the Beaglebone Greens is connected to VDD_5V. > > If I have got the above correct, I don't think it will make any difference > whether I use VDD_5V or SYS_5V. > Also, the supply voltage never returns back to the Beaglebone from the > solid-state-relay in normal operation.
Use SYS_5V, on the Green's (Wireless and non-Wireless). https://github.com/SeeedDocument/BeagleBone_Green_Wireless/blob/master/resources/BeagleBone_Green%20Wireless_V1.0_SCH_20160314.pdf VDD_5V is not connected to any power source. (just AC to the TPS65217C), as R168 is DNP (Do Not Populate).. Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYjPCS1gbFTwjO0NOM80y5XJd%2BjfaU2wsyTrZWhHp7riFQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
