Hello,
I've 15V as main supply and a 12V lead acid battery to backup it.
I need a voltage limiter circuit to drive a 9~12 siren, and protect from short circuit.
TPS259621 clamp output voltage at 13.8V, using 2x diode I think is possible to use that. But it will dissipate almost 1.2W.
I think that this dissipated power will trigger the therm shutdown.
Is possible to use a pcb footprint to reduce temperature? Do you have another solution for that circuit?
Thank you.
Regard
Leandro