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You know you get those questions where you ask 10 people and get 10 different answers... This could be one of them.
How hot should a silicon device be run before you should start getting worried about its lifetime? Does it differ from device to device, say MOSFETs vs linear regulators and more...
In this post I want to ask if you know of any circuit that can protect the integrated ULN2803, because when I make the connection to a stepper motor it overheats and stops working correctly, or I advise to use another reference to control the motor Step by Step?