Automotive quantification of TMS320F28069M

Hi Richard,

I moved your post to the C2000 forums.

Richard,

The AEC Q100 packge for the F28069M is the PFP 80-pin and PZP 100-pin. 

TMS320F28069MPFPQ or PZPQ

I'm checking on when we will be able to build and ship these, but rest assured they are supported so you can start development.

I do want to point out that for automotive type applications you may want to check your software requirements.  For the current InstaSPIN enabled devices the core algorithms in ROM are completely closed, you can't even do a CRC to make sure that code hasn't changed. I know some safety applications aren't allowed to use this in their application, others are ok....just want you aware before you start your application.

Thanks Chris.

As far as I can see - the only 100 pin "motion" part currently available for sampling or purchase is the:

MS320F28069MPNT

I believe this has the same lead pitch and span - but is not the "powerpad" part. So can I design for the powerpad and install the "MPNT" part for initial testing? Is that you recommendation?

Please let us know when the qualified power pack part will be available. Pricing info would be useful too if and when available.

I will check into the software requirements. I seem to recall TI promoting their Instaspin approach as "pre-qualified" software algorithms.... but maybe I am misrepresenting the TI advertising...:-)

Does TI have any thoughts or plans on how to resolve this potential issue? Why can't we do a CRC on the code? Maybe the code should do a CRC on itself and report a status?

Richard.

Richard,

Correct, not the same PowerPad.  Yes, for your final board if you want to run at 125C with F2806x devices you need the powerpad. I'm working on getting some built and in stock for small unit orders/samples.  I thought this was happening already but apparently it got stalled.  My best guess is early in the year for samples in stock. You should be able to place a paid order within a couple weeks which will give you a firm date.

Regaring the ROM, this was a known limitation to the approach we took of retro-fitting the algorithms into exsiting devices (Piccolo 6x and 2x).  To secure the software we simply removed read access to the ROM, it is .exe only.  This means we also can't read the memory to do a CRC function, and it can not read itself either.  This wasn't the preferred method, but it what was available to us at the time.  We do have future InstaSPIN enabled devices which will have secure ROM which can run a self check and there will be some level of accomponying software qualification documentation for those devices (specifically for automotive markets).

So with today's devices you will have to make a decision if you can use this in your application or not, knowing the limitations.

Thanks for the frank answer Chris. We have a couple of applications in mind. One the self test requirement is probably not so onerous. The other it may be.

Can you confirm that there should be no problem laying out a board for the powerpad part - and fitting the PZ part for testing. The pad spacing looks compatible to me. Thermal performance will not be so good of course.

Presumably any future Instaspin enabled parts with self test capability will not be pin compatible - will they?

Richard.

Richard,

Footprint:  For early prototypes of the F2806x controlCARD we did what you are proposing and saw no issues.  As you mention, I would not recommend experimenting with the device at high temp in this circumstance.

Pin-to-pin compatible future parts: Unfortunately, almost certainly not.  We are working on trying to make future parts more pin-to-pin compatible, but we currently focus more on keeping the chip cost low and on keeping the software/drivers mostly compatible.


Thank you,
Brett

Hi Chris... Not sure if your still monitoring this thread but...

I'm still not seeing the Automotive Qualified Power PAD package of the "Motion rom" F28069 parts being available.

We have made a batch of boards using the TMS320F28069MPZT part - but we really need the TMS320F28069MPZPQ for automotive qualification and high temperature operation. We are still not seeing this part as available anywhere though it is mentioned here:

media.digikey.com/.../PCN20140721003_Revision_09Jul2014.pdf

Earlier in this thread you indicated the automotive part was going to be available soon.. some time back...I think...

I think we could alternatively use an F28069F part - but that doesn't seem to available in the 100 pin power pad package either.

What can we do about this?

Richard.

Hi Chris

Our procurement people are trying to order these parts - but can't find them from their normal suppliers. Can you tell us exactly how to order them? Who do we contact in TI? Can we order them from your "e store"?

Thanks Chros.

Richard.

Thanks Chris...

Not sure about Arrow or Avnet - but I'll let you know...

On the "M" motion or "F" fast parts - I designed in the "M" for maximum flexibility - so our BOM calls for the "69MPZPQ" part.

To date I have only used the "F" functions - so we could perhaps consider the "69FPZPQ" if these is a serious problem with the "M" parts.

We would prefer the "M" but let us know if we need to consider the "F" parts. Do you still have any of the 90 * 69MPZPQ parts you mentioned earlier?

None of the distributors show stock of - or even list - either 69MPZPQ nor 69FPZPQ ... I think...

Thanks Chris

Richard.