Oops! N-channel Mosfet on sinking output
Go with the pullup, if you want to keep your MOSFET driver.

Make sure you don’t sink too much current into the pin by checking that $$V_{aa}/R &lt; 50\text{ mA}.$$

If you don’t need super fast switching, a resistor in the order of a few kOhm (such as 4.7k) will do fine.