WS2811 Led Controller

Hey all,

The next project I'm looking to control 12V LED strips using the WS2811 three-channel PWM IC. I'm looking at having a WS2811 IC driving three MOSFETS, that way I can attach the driver to a LED Strip. I was hoping to throw up my basic schematic and see if anyone sees anything that's wrong, something that I Have picked up it the output of the WS2811 chip is Cathode and won't be able to trigger the Mosfets, Ive seen another thread where they use optoisolators to achieve this but it will cost me quite a lot extra. Is it possible to fix this problem with it being cheaply and not increase PCB/Board Size to much.

Thanks for any advice