01-10-2011 09:21 AM
This is possibly a totally stupid question but can you use the 3.3V DIO lines as power lines? I need about ~60mA for a 3.3V rail and was just wondering if I can just set lines high and use them. If I've understood the datasheet, I'd need to use ~20 lines in parallel to get the right current, is this correct?
Thanks all!
01-11-2011 05:58 AM
Hi there!
This can be done but isn't particularly advisable due to it being somewhat untidy and due to the amount of precaution that must be taken when dealing with these higher levels of current through the device at one go, however the maximum current to be drawn is 330mA as stated in the manual. The attached link will take you to the HTML manual for the sbRIO 9602 which provides further guidance.
http://www.ni.com/pdf/manuals/374991c.pdf
I found searching "current" brought up the most relevant and useful information.
Is it not possible to use the board as a sort of relay instead, turning on and off the supply circuit you need?
I hope that this helps!