AVR-Chat

I'm curious as to why.  I can't imagine the TINY26 needing a heatsink.

DLC

>   I'm looking for a heat sink that will fit a Tiny26 (SO-20).  If anyone
> knows where I can find one I would appreciate the help.
>
>   Thanks
>
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There are both pin and package current limits. Those limits
have as much to do with silicon and wire current handling
as thermal issues. Don't expect to exceed those limits with
a heat sink.

Jim Wagner
Oregon Research Electronics, Consulting Div.
Tangent, OR, USA

On Fri, 19 Oct 2007 09:33:06 -0600 (MDT)
 dlc@frii.com wrote:
>   I'm curious as to why.  I can't imagine the TINY26
> needing a heatsink.
> 
> DLC
> 
> >   I'm looking for a heat sink that will fit a Tiny26
> (SO-20).  If anyone
> > knows where I can find one I would appreciate the help.
> >
> >   Thanks
> >
> >  __________________________________________________
> > Do You Yahoo!?
> > Tired of spam?  Yahoo! Mail has the best spam
> protection around
> > http://mail.yahoo.com
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> 
> 

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The problem isn't the tiny26 itself. Its the board temperature around the it. The tiny is absorbing that heat and its effecting the CPU Clock Freq. 


dlc@frii.com wrote:          I'm curious as to why. I can't imagine the TINY26 needing a heatsink.

DLC

> I'm looking for a heat sink that will fit a Tiny26 (SO-20). If anyone
> knows where I can find one I would appreciate the help.
>
> Thanks
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
> [Non-text portions of this message have been removed]
>
>
>
>
> Yahoo! Groups Links
>
>
>
>



                         

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[Non-text portions of this message have been removed]

Sounds like you might have other problems, Chad, unless it's an ambient 
temperature issue.  If ambient, can you enclose the board and use an 
on-board thermistor to control an external thermo-electric module?  A 
heatsink will eventually just stabilize at the ambient temperature, plus 
a little, then you'd be in the same quagmire.

Sounds like you need temperature stability rather than heat dissipation.


REB


Chad G wrote:

>   The problem isn't the tiny26 itself. Its the board temperature around the it. The tiny is absorbing that heat and its effecting the CPU Clock Freq. 
>
>
>dlc@frii.com wrote:          I'm curious as to why. I can't imagine the TINY26 needing a heatsink.
>
>DLC
>
>  
>
>>I'm looking for a heat sink that will fit a Tiny26 (SO-20). If anyone
>>knows where I can find one I would appreciate the help.
>>
>>Thanks
>>
>>__________________________________________________
>>Do You Yahoo!?
>>Tired of spam? Yahoo! Mail has the best spam protection around
>>http://mail.yahoo.com
>>
>>[Non-text portions of this message have been removed]
>>
>>
>>
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>    
>>
>
>
>
>                         
>
> __________________________________________________
>Do You Yahoo!?
>Tired of spam?  Yahoo! Mail has the best spam protection around 
>http://mail.yahoo.com 
>
>[Non-text portions of this message have been removed]
>
>
>
> 
>Yahoo! Groups Links
>
>
>
>
>
>  
>


[Non-text portions of this message have been removed]

On Oct 19, 2007, at 3:15 PM, Chad G wrote:

>    The problem isn't the tiny26 itself. Its the board temperature  
> around the it. The tiny is absorbing that heat and its effecting  
> the CPU Clock Freq.

So if you heatsink the AVR it will *absorb* even more of the heat.

--
David Kelly N4HHE, dkelly@HiWAAY.net
========================================================================
Whom computers would destroy, they must first drive mad.