August 4, 201510 yr I have doubts about putting 3.3V on the Power OK pin of the VRAM PWM. Why? It's just logic signal, man Pin 25 is your buddy.
August 4, 201510 yr Author Why? It's just logic signal, man Pin 25 is your buddy. I don't know it just sound like a bad idea putting 3.3V on a pin that says in it's sheet that it outputs 1.5V. Also could you explain some of the terminology that IR uses on their datasheets? I can usually get around intersil and some other data sheets because they all use similar terminology but IR's data sheets don't so I can't figure out what to do with them. For example what is VRTN and VGPU? or in the case or the IR3567B what is VSEN and VRTN? I always figure that the VRTN was the voltage feedback pin but I never got that confirmed. Thanks so much for everything.
August 5, 201510 yr Vsen = Vsense Vrtn = Vreturn Return is not feedback pin, vsense is. return is complimentary negative sense signal. Power good pin is not outputting anything it's open-collector input.
October 16, 201510 yr Author I am very smart /s I soldered the completely wrong pins no wonder it still won't start.
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