retrolefty:
jonisonvespa:
ok had another look at the data sheeti cant find any mention of heatsinking,
i really dont understand where this heat would be coming from in the first place, the current passes between IP+ (pins 1 and 2) and IP- (pins 3 and 4) the resistance is 0.3 ohms how can this generate any heat?
Can't be .3 ohms and still rated for 30amps. Amps squared X R loss would blow the whole module up.
Lefty
here is a pic of the internals of the ic, of the ic pins 1,2 connected to 3,4 i measured it this morning 0.3 ohms
