You can't run a micro directly off a solar panel. They put out DC for charging the battery.
You can run a micro off a 1500W or bigger inverter. That will need 300-400Ah of batteries to feed it, hard to fit in a TC. That inverter will be sucking 120+ amps while the micro is running, that is why you need the big battery bank.
I did it with my 5th wheel, but I just couldn't fit those batteries in my Lance 845.
2005 GMC 2500HD
1998 Lance 845
320AHr Battery Bank
400W Solar Array
Morningstar ProStar 30 PWM Controller
NovaKool R5810 5.8cf 12VDC Refridgerator (best mod ever!)