It looks really small though to able to handle 5 Amps. That's crazy. Does it get too hot to touch at 2700mA?
I have to admit- I wasn't paying to much attention to the MOSFET when the driver was running. I'm assuming it would get pretty warm too (It's rated for 3.5 amps) but letting the smoke out of a $46 BridgeLux was my main concern. I only ran the driver long enough to get some voltage and current readings, and will try again after I adjust some component values to bring the current down to an in spec level.