Grumpy_Mike:
I hope you are not using it with 5V, The maximum voltage according to that sheet is 2.5V, you should not even be driving it with 3.3V. You should be driving it with 1.8V.You have to explain why you have those doubts.
The duty cycle has nothing to do with anything here.
Well, I am a little bit confused: that datasheet says 2.3Vmáx but the heading of the item says 3.2V (also in the invoice).
My doubts about the duty cycle is because I am turning it on and off during the same time. So this means a 50% duty cycle. Am I right? Then, if I have an output of 5V and a duty cycle of 50%, if I measure the voltage with a DVM, I get 2.5V. This means I am driving the laser (or whatever I have connected) with 5V or 2.5V? This is maybe stupid, but I am starting and everything is a huge doubt for me.
Thanks!
PS: Great web! I have to read all that carefully.