LM5134 mosfet driver Spice model not working in LTSpice
First of all why do you short the output pin via R1 resistor? 

In LTspice \$10m\$ is interpreted as \$10m \Omega = 0.01\Omega \$. 

Also we can find in data-sheet this information: 
 
In your circuit \$V_{DD} = 12\$ therefore \$Vin &gt; 0.67*12V = 8.04V \$

LM5134B is a TTL version 

After I fix this the simulation look like this: