LPC3154 on lpc-link getting hot

[lpcware]

Content originally posted in LPCWare by paksoft on Mon Mar 28 09:14:14 MST 2011
Hello dude,
    I have a lpcxpresso LPC1769 ver. B. Just bought it:) And doing some debugging then I noticed the LPC3154 is getting hot while I debugging some code. And I also notice that it will become normal when I quit lpcxpress IDE. LPC1769 on target board is still cool. My question is it's normal?

regards,
pak

[lpcware]

Content originally posted in LPCWare by paksoft on Tue Mar 29 07:01:23 MST 2011

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Quote:
FYI - the LPC3154 is supplying power to the LPC1769 via its built-in PSU. So, I would guess you are feeling the heat from the PSU and not from the core itself.

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Thanks, TheFallGuy. You've explained my question perfectly. :D

BTW, what is max current drain of VIO_3V3?
Regards,
pak

[lpcware]

Content originally posted in LPCWare by TheFallGuy on Tue Mar 29 02:22:03 MST 2011
FYI - the LPC3154 is supplying power to the LPC1769 via its built-in PSU. So, I would guess you are feeling the heat from the PSU and not from the core itself.

[lpcware]

Content originally posted in LPCWare by paksoft on Tue Mar 29 02:10:02 MST 2011

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Quote:
Can you measure the temperature of the LPC3154?

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The temperature difference can be compared by touching LPC1769 and LPC3154. I think temprature is about 40 deg C. Have you tried it before? :)

Regards,
Pak

[lpcware]

Content originally posted in LPCWare by larryvc on Mon Mar 28 13:31:11 MST 2011
I just tested mine and the LPC3154 barely gets warm.  I've never noticed it getting hot.

What are you debugging when it gets hot?  Maybe I can duplicate it.

Can you measure the temperature of the LPC3154?

[lpcware]

Content originally posted in LPCWare by Luis Digital on Mon Mar 28 10:14:14 MST 2011
Yes dude. :)