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Peak current-need clarification of information in data sheet

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rina_1220

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Peack Current

Hi all. I am a bit confused about a piece of information on a LED's datasheet.
It's said there that:

Continuous Forward Current (max) = 30mA
Peak Forward Current (max) = 200mA

I need to light one of these LEDs for less than 1ms (about 750µs) with current = 6mA and another with current = 120mA
Can I use this LED and consider it's Peak forward current for my purpose, since it'll never be lit for longer than 1ms?

thanks
 

Re: Peack Current

As the name suggest continuous forward current is the current the diode would conduct continuously without any problems. The peak Forward current is the maximum current that could flow through the diode for specified time without problems. The time would be specified in the datasheet in the same row where the peak forward current is mentioned.
So if the specified time in the datasheet is greater than 1msec you could proceed with the selected LED.
 

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    rina_1220

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Re: Peack Current

Hey thanks.
I am looking at the datasheet, but I can only find fall and rise time.
h**p://www.advancedphotonix.com/ap_products/pdfs/PDI-E832.pdf


Well, I guess it'll do.
 

Re: Peack Current

In the datasheet provided at link:
**broken link removed**
with the same power dissipation ratings the specified time is 10usec. So if it is the same for PDI-E832, then you should not use the diode for your application.
Anyway I would suggest you to ask the vendor about the missing information in datasheet.
 

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