I'm using the lm317 to bring 12v to 6v.
But the thing get's untouchably hot almost instantly.
The voltage drop is about 6v and the current drop is around 2A.
So power dissipation is around 12W.
I don't subjectively know how hot 12W is. Is it normal for 12W to make the lm317 become untouchable after about 1 second?
I tried also dissipating the power of a 9V battery using just a 220ohm resistor.
But I got hot really quickly. Is that normal? I've been messing with electronics here and there for a while but surely I would have wired a resistor in series with a 9V battery. I don't ever recall it getting hot so it's kind of unexpected. It feels like I'm going crazy.
But the thing get's untouchably hot almost instantly.
The voltage drop is about 6v and the current drop is around 2A.
So power dissipation is around 12W.
I don't subjectively know how hot 12W is. Is it normal for 12W to make the lm317 become untouchable after about 1 second?
I tried also dissipating the power of a 9V battery using just a 220ohm resistor.
But I got hot really quickly. Is that normal? I've been messing with electronics here and there for a while but surely I would have wired a resistor in series with a 9V battery. I don't ever recall it getting hot so it's kind of unexpected. It feels like I'm going crazy.