TMDXIDDK379D: ADDITIONAL SUPPLY FOR EXPANSIONS

Massimo Francescon

I'm designing a test system where a TMDXIDDK379D mother board will host one F28379 controlCARD and one more card I have to develop.

What is the maximum current I can draw from the 5V0C supply bus?

I didn't find any information about the module PR902 in order to get some more information about supplies.

Thank you in advance.

over 7 years ago

0 Ramesh Ramamoorthy over 7 years ago

TI__Mastermind 27240 points

15V, 330mA
5V, 250mA

0 Massimo Francescon over 7 years ago in reply to Ramesh Ramamoorthy

Prodigy 110 points

Thanks for your quick answer. Just one more precisation: can I draw both currents you indicated at the same time, or alternatively?

0 Ramesh Ramamoorthy over 7 years ago in reply to Massimo Francescon

TI__Mastermind 27240 points

Good question, total power from both outputs should be lesser than 5W. Individually they are rated for the max currents as given above.

0 Shamim Choudhury over 7 years ago in reply to Ramesh Ramamoorthy

TI__Genius 11985 points

Yes, as per the design info you should able to draw both currents at the same time. Also, this is a design done by TI Power Management team. So for detail info pls post your questions to TI AC/DC and Isolated DC/DC Power Forum.

Shamim

0 Massimo Francescon over 7 years ago in reply to Shamim Choudhury

Prodigy 110 points

Well, these two answers are a bit fighting each other...

0 Ramesh Ramamoorthy over 7 years ago in reply to Massimo Francescon

TI__Mastermind 27240 points

Well, if you draw the rated 0.33A from 15V, then there is not much left to draw from 5V as the max power draw (combined) should be lesser than 5W. Alternately, if you draw rated 0.25A from 5V, you can still draw about 0.25A from 15V. Hope it helps.

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TMDXIDDK379D: ADDITIONAL SUPPLY FOR EXPANSIONS