Hi,
Please i'm searching for a design that'll produce 10% duty cycle or less, hence 555 timer is not capable. Any suggestion would be greatly appreciated.

Thanks.

 

You left out a lot of information, such as:
Frequency range
Frequency stability requirement
Power supply voltage
Output voltage and current capability
Minimum and maximum duty cycle

 

A 555 timer can be wired for a very wide range of duty cycles; from a few percent to nearly continuous. You need to use one or more diodes to provide different current paths for charging and discharging of the timing capacitor. A switching diode (1N914, 1N4148) or Schottky diode (1N5817 thru 1N5819, BAT54, etc.) work well for this; standard rectifier diodes (like 1N400x, 1N540x, etc.) won't work very well past a few hundred Hz as their reverse recovery time (turn-off time) is very slow.

 

In other words, a 555 will do this job, but you left out a lot of necessary information.

 

You left out a lot of information, such as:
Frequency range
Frequency stability requirement
Power supply voltage
Output voltage and current capability
Minimum and maximum duty cycle

Do you ask this because stability can be changed by modifying the attached components?
Or do you ask to determine if the 555 is able to have a stability of "X" and if not, you need to use a different strategy/chip?

Thanks

 

Do you ask this because stability can be changed by modifying the attached components?
Or do you ask to determine if the 555 is able to have a stability of "X" and if not, you need to use a different strategy/chip?

Thanks

My mind did not automatically gravitate to the 555. The question of stability is always relevant when an oscillator is called for.

 

My mind did not automatically gravitate to the 555. The question of stability is always relevant when an oscillator is called for.

Ok, there's the answer!
What would you gravitate to?

 

Ok, there's the answer!
What would you gravitate to?

I'm waiting for an answer from the OP. He probably can't give us a quantitative answer, but he can tell us his application, and we can go from there.