I would get an allum sink the right size to go across the three processors and use heatsink compound to "glue" it on
But even when the 293 can handle the current in a particular set of circumstances, what are the ways of heatsinking it when it's on a board? It's not like a 298 where there's a hole in the back to attach a sink, even an ersatz nut and bolt and a chunk of metal.With a 293 on a board, where there's probably limited access to the 4 pins, how to protect it?
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