I've been looking for cheap and easy ways to drive a MOSFET with PWM and I came across a simple 555-based driver.
But that gave me an idea, since push-pull setup is used for driving MOSFETs, and an H bridge is basically a double push-pull, is it possible to use an H bridge motor driver IC, namely the l9110, to drive two MOSFETs?
The l9110 is intended to drive one motor, but I think I can connect each output to a MOSFET gate and drive 2 MOSFETs with it.
Here is the datasheet of l9110.
Another datasheet. It's in Chinese but has an internal diagram too.
- I couldn't find a maximum switching time for l9110 so I know that it probably can't handle more than a few kHz. But that's OK.
- Please don't suggest using a dedicated driver. I'm specifically asking if this particular IC or other H bridge ICs can be used to drive 2 MOSFETs.