Hi, I'm trying to build a simple delay circuit using a 555 timer in a monostable config, same as this one
The problem I'm having is every time power is applied to the circuit the 555 chip immediately blows up. Once literally (when using a 12v ac power brick) and once caught fire (running off a 12v car battery)
When using a 6v battery pack powered by AAA batteries the circuit works fine. But I need it to run off a 12v power source. I've been using 16v 4.7uf tantalum caps but then tried 4.7uf 50v electrolytic caps and it still blows. Resistor is 10m ohm.
Do I need to add some sort of power filter or a diode when running the 555 off 12v?
The problem I'm having is every time power is applied to the circuit the 555 chip immediately blows up. Once literally (when using a 12v ac power brick) and once caught fire (running off a 12v car battery)
When using a 6v battery pack powered by AAA batteries the circuit works fine. But I need it to run off a 12v power source. I've been using 16v 4.7uf tantalum caps but then tried 4.7uf 50v electrolytic caps and it still blows. Resistor is 10m ohm.
Do I need to add some sort of power filter or a diode when running the 555 off 12v?