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STM32F4 Burned out

Question asked by Tom on Apr 18, 2013
Latest reply on May 2, 2013 by John F.
Hi,

I'm using an stm32f4 on a PCB and suddenly it became extremely hot. The strange thing is that it still worked, but there was an extremely (relatively) high current running through the circuit. 

I've removed the stm32f4, concluding that my 3V domain is fine.

Now, I'm trying to sort out what has happened. Does anyone has any idea what might cause this kind of behaviour out of the processor? (High current but still "working"). Can this happen if to high voltage is applied to any of its pins?

Should I just try to replace it and hope that it is a fluke? I have several identical PCBs and this is the only one on which I had problems with the STM32F4.

// Tom

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