[En-Nut-Discussion] LAN Controller Heating Up

[Batson Michael Wilson]

We have talked to SMSC support about this issue and they said" The chip runs
hot and if a link is not up/device connected to LAN it will run hotter" we
have noticed a rise of as much as 10c if the LAN was not connected, but they
said this "is a hot running chip and is normal".

Cheers
Mike

> -----Original Message-----
> From: en-nut-discussion-bounces at egnite.de [mailto:en-nut-discussion-
> bounces at egnite.de] On Behalf Of Harald Kipp
> Sent: Friday, 15 October, 2004 04:22
> To: Ethernut User Chat (English)
> Subject: [En-Nut-Discussion] LAN Controller Heating Up
> 
> Igor,
> 
> What's the value of R9? Since Ethernut 2.1 we mount 12k
> to reduce the current.
> 
> But indeed, if you follow the SMSC recommendations, using
> 11k or even 10k, then the chip will reach 50-60 degrees
> Celsius.
> 
> Harald
> 
> At 14:52 15.10.2004 +0600, you wrote:
> >Hi all!
> >
> >I'm have made EtherNut 2.0 board by myself and I look that Lan91c111 is
> >very hot, about 50 C degree or above. Is it wrong or not?
> >
> >Regards Igor Fedorchuk aka Wh`te
> 
> _______________________________________________
> En-Nut-Discussion mailing list
> En-Nut-Discussion at egnite.de
> http://www.egnite.de/mailman/listinfo.cgi/en-nut-discussion