Leakage current of /SDN ADA4851-1

Dear Sir/Madam,

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.

Thanks Kaos