I've constructed the following circuit: 
From this blog: Tahmid's Blog
I put an LED in series with a 330 ohm resistor at the OUT terminal. I have the 5 V being supplied by an Arduino and the 12 V from a lead acid battery. The arduino is not programmed, I'm just using it for its output, and I am manually moving HIN from ground to +5V to test the circuit.
When I connect the lead-acid battery, the IR2110 gets really hot. I've measured the voltage between 3 and 5 and it is about 1.5 V, when HIN is at ground. This doesn't change when I move it to +5. The LED turns on brightly then dims when I connect the 12V and HIN is at ground. It turns off if HIN is moved to +5V. I am using the IRF540N for the MOSFET.
I have 5V at the drain of the MOSFET.
Please help. I don't know what could be wrong.
Oh and all the grounds are common.
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