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 Carambola Dev-Board maximum current @ 5V 
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Joined: 24 Jun 2014, 18:32
Posts: 2
Hi there,

I am planning to use the prototyping area on the Carambola Dev-Board, where I already spotted some rails for GND, 5V and 3.3V.
I assume these pads are the same lines that are wired upon the appr. pins in J5 header area.
What current am I safely able to draw from the two 3.3V and 5V lines?
I am going to hook up an external GPS receiver which already hosts 3.3V level UART Rx/Tx on an micro USB connector, which also
can be used to power the device (and charge the battery, if inserted).
It is a Holux GPSlim236 unit, the label says a maximum of 800 mA @ 5V would be needed (I assume for charging).
I do not know any real values by now, as I do not have any measurement equipment here by now.
But if you say it would not be save to power the GPS device from the prototype area's rails, I will go for an extra supply.

Thanks in advance!

Philipp


24 Jun 2014, 18:41
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Joined: 07 Dec 2011, 16:01
Posts: 525
Location: Lithuania
Hi,
5V DC/DC converter max current is 3A.Carambola module consume about 1A.


24 Jun 2014, 19:20
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Joined: 24 Jun 2014, 18:32
Posts: 2
Thank you for this information! So this shall be good enough I think and will keep the job simple.


24 Jun 2014, 21:53
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