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LED driver for laser diode

a12b34c56

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Joined
Sep 5, 2019
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Hi,
I want to drive a strip of 15 650 nm LDs (3V, 40ma) with 48V switching power supply. I intend to use constant current LED diver NSI45035JZ. https://www.onsemi.com/pub/Collateral/NSI45035JZ-D.PDF. I’ve got the driver but my scope has a pretty low bandwidth( 0- 200kHz) so I would not be able to see a turn on voltage spikes if there are any. Will it be safe to put 0.1 µF electrolytic capacitor in parallel with the load to account for potential spikes or I need more sophisticated circuit?
 



Lifetime17

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Dec 15, 2014
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Hi, Not a good idea, go to DTR for the correct drivers for your diodes. Led drivers are NOT for diode regulated currents . Go cheap and go home..
Rich:)
 




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