Current Draw of the ICD-U

[Vincent Bartlett]

I am using the ICD-U (USB version) and the new 12F675 demo board from CCS. I know that the host (demo board) provides power to the ICD but the linear regulator on the demo board get quite hot (40C above ambient measured at the TO-220 tab). Does anyone know the current draw of the ICD? FYI the linear regulator stays about the same temp with the USB cable detached.

VB
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This message was ported from CCS's old forum
Original Post ID: 13478

[Warren Massey]

:=I am using the ICD-U (USB version) and the new 12F675 demo board from CCS. I know that the host (demo board) provides power to the ICD but the linear regulator on the demo board get quite hot (40C above ambient measured at the TO-220 tab). Does anyone know the current draw of the ICD? FYI the linear regulator stays about the same temp with the USB cable detached.
:=
:=VB
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This message was ported from CCS's old forum
Original Post ID: 13508

[Warren Massey]

:=I am using the ICD-U (USB version) and the new 12F675 demo board from CCS. I know that the host (demo board) provides power to the ICD but the linear regulator on the demo board get quite hot (40C above ambient measured at the TO-220 tab). Does anyone know the current draw of the ICD? FYI the linear regulator stays about the same temp with the USB cable detached.
:=
:=VB

Here's an old thread that included a discussion of the hot regulator:

<a href="http://www.pic-c.com/forum/general/posts/11658.html" TARGET="_blank">http://www.pic-c.com/forum/general/posts/11658.html</a>
<a href="http://www.pic-c.com/forum/general/posts/11720.html" TARGET="_blank">http://www.pic-c.com/forum/general/posts/11720.html</a>

I've added a heatsink to the regulator and I'm now using an Astrodyne SPU15A-3 12V power supply ( <a href="http://www.astrodyne.com/astro/pdf/DSKT.pdf" TARGET="_blank">http://www.astrodyne.com/astro/pdf/DSKT.pdf</a>)
and it helps a bit but it still does get hot. It's a poor design IMHO.
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This message was ported from CCS's old forum
Original Post ID: 13509