I want to use 4 of these mosfet aaAUIRFS8409-7P an H-bridge. For the lower side mosfet, I can use MIC4422 mosfet driver to drive them. The driver is for heavy power mosfet and it's really fast switching according to the description and features.
Now I need to find a driver to drive the high side of the bridge, but I dont really know how to look for it. What should I look for? what number in the datasheet? What does effect the switching speed of a mosfet?
Also, If there is not fast switching mosfet driver for high sided mofet, can I control only the lower mosfets with pwm signal to control the speed of the motor, while leaving the higher mosfets always on or off?
If you know some driver that can interest me, I would appreciate that you share with me.
And for the MIC4422, there is a version, the MIC4421, that is "inverting". I don't really know what that's mean, is it important?