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Jeff Liebermann Jeff Liebermann is offline
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Default mosfet replacement for tip120?

On Wed, 13 Sep 2017 08:33:57 -0700 (PDT), wrote:

im working on a arcade game board . the tip 120 for an eject soleniod is driven right off the processor leg, no pre -driver transistor. didnt even think that was possible, maybe that why it blew. is there a mosfet i can replace the tip120 with?
thanks


I don't like using darlingtons for power drivers. A momentary shorted
load, and the darlington blows up from too much current. This article
should provide some detail:
http://www.sensitiveresearch.com/elec/DoNotTIP/index.html
I can't offer any specific recommendations without some clue as to the
processor output voltage and current capabilities, the solenoid specs,
and the operating voltage.


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