[Cyborg] Fwd: adapter compatibility question QFN 20 pin to DIP-20 for HMC5843

Lamont Lucas lamont at cluepon.com
Mon Mar 23 15:48:21 PDT 2009


Awesome.  I'm going to order 2, anybody else want in on that order with 
me?  (I've ordered from them before in a hurry, paid too much for 
shipping AND got the wrong part, but I'll be more careful this time)

Meanwhile, here's the response on the HMC5843 thread on sparkfun to my 
question about the package:

"I couldn't find any PLCC adapters which were correct either. I just 
risked it and made my own PCB through batchpcb (It was a 2.5 week 
turnaround for me during February) which worked out.

Be very careful with the honeywell datasheet, and make sure you have the 
most current one. The initial Honeywell datasheet was completely wrong 
with I2C comms.

Also note that the footprint pin numbers in the Honeywell data sheet are 
the BOTTOM view, so you need to reverse your brain to get the pinout 
right. I can post an image of my footprint and layout when I'm back on 
my pc, remind me of this.

I think you will likely get the same issue with the chip as me, my 
belief is digi-key has a bad batch of chips. I have contacted Honeywell 
about the issue and RMA'd my chip back to them and hopefully get one 
from a new batch. They were out of stock so it has taken approximately 
3-4 weeks waiting for a new chip from them.

Hopefully between us and the other people on this board this issue will 
get worked out. The HMC5843 is the most cost effective and accurate 
integrated compassing solution I have seen.

-Todd"



miloh wrote:
>
> "Our E20-0095, QFN 20 pins (4mm x 4mm, 0.5mm lead pitch) to DIP 20 
> pins IC Adapter, can fit your IC very well."
>
> epboard.com <http://epboard.com>  E20-0095
> http://epboard.com/eproducts/doc/E20-0095.pdf
>
>
> ---------- Forwarded message ----------
> From: <adapters at epboard.com <mailto:adapters at epboard.com>>
> Date: Mon, Mar 23, 2009 at 3:02 PM
> Subject: RE: adapter compatibility question
> To: miloh <miloh at froggytoad.net <mailto:miloh at froggytoad.net>>, 
> froggytoad at gmail.com <mailto:froggytoad at gmail.com>
> Cc: order <order at epboard.com <mailto:order at epboard.com>>, 
> design at epboard.com <mailto:design at epboard.com>
>
>
> Hi Miloh,
>
>  
>
> HMC5843 is totally different package compared with PLCC-20. This chip 
> size is 4mmx4mm and lead-pitch is 0.5mm. It is a QFN-20 package. Our 
> E20-0095, QFN 20 pins (4mm x 4mm, 0.5mm lead pitch) to DIP 20 pins IC 
> Adapter, can fit your IC very well. If you are not sure about how to 
> solder this chip, we also provide the soldering service within one day 
> after receiving the chip from you. If you like to order, you can 
> simply click the following links to order from there. Thanks.
>
>  
>
> E20-0095, QFN 20 pins (4mm x 4mm, 0.5mm lead pitch) to DIP 20 pins IC 
> Adapter
>
> https://order.store.yahoo.net/cgi-bin/wg-order?yhst-13199506910170+E20-0095
>
>  
>
> EICS-002: Express IC Soldering for pin counts: 10 to 24 pins
>
> https://order.store.yahoo.net/cgi-bin/wg-order?yhst-13199506910170+EICS-002
>
>  
>
> Regards,
>
>  
>
> Adapter Team
>
> ePBoard
>
>  
>
> ------------------------------------------------------------------------
>
> *From:* froggytoad at gmail.com <mailto:froggytoad at gmail.com> 
> [mailto:froggytoad at gmail.com <mailto:froggytoad at gmail.com>] *On Behalf 
> Of *miloh
> *Sent:* Monday, March 23, 2009 2:38 PM
> *To:* adapters at epboard.com <mailto:adapters at epboard.com>; 
> design at epboard.com <mailto:design at epboard.com>
> *Subject:* adapter compatibility question
>
>  
>
> Hi,
>
> Hi,
>
> Can you recommend a compatible adapter part to use with the Honeywell 
> HMC5843?   See page four of the following pdf
> http://www.ssec.honeywell.com/magnetic/datasheets/HMC5843.pdf 
>
>
> Regards, 
> R. Miloh Alexander
>
>
>
>
> Possible adapters...
> http://www.epboard.com/eproducts/protoadapter2.htm#PLCCtoDIPAdapter
> http://www.epboard.com/eproducts/parts/EPL-0020.htm
>
>
> ------------------------------------------------------------------------
>
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> Cyborg mailing list
> Cyborg at lists.noisebridge.net
> https://www.noisebridge.net/mailman/listinfo/cyborg
>   



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