Our customer asked as folowing question.
As for your ADA4851-1,What is your output leakage current when /PDN is enabled?
In fact, he has put the transistor 2SC6075 at ADA4851-1 output, and has driven the laser diode.But when he change /PDN=enable, then 2SD6075 worked and the laser diode came on.He think the reason why is leakage current.
So I need your comment soon.
Here is the partial schematic.
Can you show your equivalent circuit of ADA4851-1 output also?
Here is tested scope shot for your info. Any comment?
What trouble has comin' with the emitter is pulled -5V, when there is /PDN?
Our customer have confused about this design.....thanks