hello!i have problem in ir 2233. i have made driver circuit as par the datasheet. frequency of PWM is 20Khz.
but FAULT is always low ,and the led is on.Any idea why?
Hi Joyce
In my opinion a 1 uF capacitor can't keep the charge for long times . ( don't forget that a boot strap capacitor needs high values ) . i think a 220uF or at least a 100 uf capacitor would solve your problem .
Best Wishes
Goldsmith