SuperDave
Joined: 22 May 2008 Posts: 63 Location: Madison, TN
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ICD-U64 powering UUT question |
Posted: Fri Sep 14, 2012 1:10 pm |
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I know from here
http://www.ccsinfo.com/faq.php?page=current_supply
that the ICD-U64 can (and in fact it does) power my device with up to 200mA. And I know that it can power either 3.3 or 5.0 Volts by using the internal jumper (which appears to be a digital signal to the micro, not a hardware voltage jumper.)
Here's the question. Will the internal power supply withstand a short circuit on the UUT? We've blown a few U64's and my guess is that the 10uF input cap on the UUT is creating a surge current that's causing the failure. It works fine for many units until it doesn't. Anyone have any real data?
Anyone had a U64 repaired?
Thanks. |
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