I need to use an optocoupler to drive BJT. BJT will let 10 A current pass. BJT's have commonly 100 - 150 Bf(current gain) so for 10A transmission I need at least 100 mA current draw from the optocoupler.
Maximum collector current is seen as 50 mA. I don't understand, in digikey's spec, this component brags about 200% @ 5mA CTR. But if you allow maximum 50 mA collector current, why do you show such a useless data? Or am I reading this wrong?
Also, another concern of mine is:
this is a photovoltaic device, meaning when internal diode flashes, darlington base starts to draw current no matter what. So, let say if this coupler gives 5A Collector current for 5mA IF current, and if there was no room for that current to flow, could the optocoupler burn out?
Thanks in advance.