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LASER Diode reverse current protection

Other Parts Discussed in Thread: ONET4291VA

Hi,

I have designed a LASER diode driver circuit that provides constant current at a regulated voltage to the diode. I need reverse current protection for my LASER. The reverse current above a few microAmp can damage the LASER. Can you suggest a part that could protect the LASER from even a few microAmps of reverse current?

Regards,

Nidhi Singh