[SOLVED] 555 Timer Monostable 5V to 3V !!!!!!!!!!

[Englewood]

555 Timer Monostable 5V to 3V !

Hello All.

I have made a Monostable 555 circuit that runs on 5V and works fine, lights up my laser.

I need to run the circuit from a 3V battery CR2032, when I use 3V the laser doesn't light up.

Should I use a transistor?
Is the 555 timer not cable of running on 3V?

The laser works on 3V fine out of circuit.

I don't want the circuit to draw too much current from the battery at the moment its drawing 20mA.

Thanks

 

[KlausST]

Hi,

Is the 555 timer not cable of running on 3V?

The datasheet should tell you.
I don't know...I'd need to read it, too.

Klaus

 

[Englewood]

Sorry, I think I just found the problem.

The minimum voltage is 4.5V so NO.

 

[Externet]

Try the 7555 timer IC.

 

[Audioguru]

The ICM7555, TLC555 and LMC555 are Cmos and are all the same. They work with a supply as low as 2V but then the output current is low.

 

[Englewood]

Thanks for the reply's.

I have used a TLC555IP works perfect .