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Old 7th June 2004, 04:51 PM   #1
mateo88 is offline mateo88  United States
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Default minimum heatsink size for lm3875

I did a search, but I couldn't come up with the minimum size a heatsink should be for the lm3875. If I have good ventilation, would I be able to use one athlon heatsink for two chips? Also, would I be able to use the heatsinks from a pc power supply? If the chips are running around +-35v, how many watts of heat do they produce?

Thanks for any replies

Matt
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Old 7th June 2004, 06:15 PM   #2
ble0t is offline ble0t  United States
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Check out page 11 of this pdf from National:

LM3875 Datasheet

That should get you going
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Old 7th June 2004, 06:30 PM   #3
mateo88 is offline mateo88  United States
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Thank you very much! That should do nicely.


Matt
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