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Registered Member #3637
Joined: Fri Jan 21 2011, 11:07PM
Location: Buffalo, NY
Posts: 1068
Hello all, I've got several of the aforementioned IC's above, and ever since I've gotten them, I've had nothing but problems with them.
My issue? The High side never seems to want to work.
Basically, I've followed EXACTLY what the datasheet implies, using 1 uF as the bootstrap cap, a UF4007 diode as the bootstrap diode, and nothing as a bootstrap resistor (since apparently that slows things down, making more heat)
I've also used a 1 uF cap as the one going from Vcc to COM.
And, the SD input on the FAN7392 I usually put to ground.
And every time, it seems it just, fails to work properly! No signal, or a crap signal at that, and not even at the correct voltage for turning on the mosfet!
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FAN7382 and FAN7392 problems
