Heat Management

I believe that in theory the Zynq chip on a AES-Z7MB-7Z010-G can become excessively hot if the PL and PS is operating at full capacity.

If that happens, what are the recommended heatsinks and/or fans.

Thanks.

0 Former Member over 11 years ago

Take a look at the 'Thermal Considerations' section of the MicroZed Carrier Card Design Guide, near the end of the document for heatsink recommendations. The Carrier Card Design Guide can be found here: http://www.zedboard.org/documentation/1519

-Gary
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0 Former Member over 11 years ago

Thank you for a very speedy and useful response.

I only looked in the MicroZed documentation, not the carrier card documentation.
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0 Former Member over 11 years ago

My 2 cents...
In a document suggested heatsinks are 19x19mm, but I measured distance between some capacitors near Zynq on my microzed 7020 is ~18.9mm. So, I went with 18mm and even this is close in my opinion, just .020 on each side...
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0 Former Member over 11 years ago

One of the challenges we have run into is there are very few - if any - good 17mm x 17mm heat sinks. The 19mm heat sinks suggested on the MicroZed Carrier Design Guide are a good place to start.
Another good resources is CoolInnovations SMT heat sinks for BGA-style packages, They have some raw copper and aluminum options that can fit on MicroZed as well. See here.
I am not aware of a fan or fan sink that can attach directly to the MicroZed zynq given it's small size. However, the fan header can be used to power a fan to provide sufficient airflow for your design. Sunon, EBM-Pabst, and Aavid are fan suppliers Avnet works with.
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0 Former Member over 10 years ago

I have the 7Z020 MicroZed and the Zynq definitely is getting quite hot before I've put any of my own logic in the PL. I'm definitely skeptical of the wisdom of using a 19mm square heat sink due to the proximity of the capacitors which are taller than the BGA. I'm going to try the Wakefield Thermal Solutions LTN20069-T5, which is 16.5mm square by 8.9mm, supplied with thermal adhesive tape. While the Cool Innovations is better, the Wakefield is available from stock and is quite inexpensive (under $1.50 in quantity 1).
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0 richw42 over 10 years ago in reply to Former Member

I just got my first microzed today, and my measurements show about 20mm between the capacitors. Perhaps my version has smaller caps; the pads are quite a bit larger than the caps.
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