[MinnowBoard] Minimal voltage

[Michael Jarvis]

Sounds like you might need some sort of voltage regulator between your UPS
and the MBM.

On Thu, Oct 9, 2014 at 2:05 PM, David Anders <danders at circuitco.com> wrote:

>
> Thiago,
>
> yes that is correct... min 4.75V
>
> Dave
> > On October 9, 2014 at 2:03 PM Thiago Tenório Jordão de Vasconcelos
> > <thiagottjv at gmail.com> wrote:
> >
> >
> > Hi guys, thanks for the answers.
> >
> > But even When I don't use a USB the  minimum is 4.75V, right?
> >
> > Atenciosamente,
> >
> > Thiago Vasconcelos
> >
> > --
> > Programador Web
> > Portfolio: http://thiagottjv.com
> > Fone:+55-81-96320562
> >
> > On Thu, Oct 9, 2014 at 4:00 PM, David Anders <danders at circuitco.com>
> wrote:
> >
> > > Thiago,
> > >
> > > the input voltage is used directly to power the USB interfaces on the
> main
> > > board, therefore, the tolerance is configured to be the same as the USB
> > > specification which states that the voltage is +- 0.25V , for a
> minimum of
> > > 4.75V
> > > and a maximum of 5.25V
> > >
> > > Dave
> > >
> > >
> > > > On October 9, 2014 at 1:57 PM Joey C <casas.joey at gmail.com> wrote:
> > > >
> > > >
> > > > I've seen weird usb and SATA drive things when using a 2A power
> supply. I
> > > > went to a 2.4 and those issues resolved.
> > > >
> > > > On Thursday, October 9, 2014, Thiago Tenório Jordão de Vasconcelos <
> > > > thiagottjv at gmail.com> wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > Someone know what is the minimal voltage to supply the MinnowBoard
> MAX?
> > > > >
> > > > > I'm going to use a UPS system and when the power goes down on the
> > > change
> > > > > from the wall power to the battery the voltage goes down to
> something
> > > near
> > > > > 4.435v during the 10ms of the transition.
> > > > >
> > > > > Thank you,
> > > > >
> > > > > Thiago Vasconcelos
> > > > >
> > > > _______________________________________________
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> > >
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>



-- 
*Michael Jarvis*
McKinney, TX USA
http://about.me/michael.a.jarvis
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