DLP6500FLQ: 775 nm operation

Jim Jacob

Part Number: DLP6500FLQ

I know the wavelength range of the 6500 DMD is specified out to 700 nm, but how much of a problem would it be to illuminate the chip with 1 watt at 775 nm?

over 1 year ago

0 Fizix over 1 year ago

TI__Mastermind 46405 points

Hello Jim,

Although it is outside of the data sheet specs and not guaranteed as such, I don't anticipate any real issue at only 1 watt, with a couple of stipulations -

This assumes that it will be spread evenly over most of the surface of the DMD to keep the power density in check. You can use the visible information as a rough estimate, but derate it a bit (maybe to around 80% but that is a guess).
Keep overfill outside the active array area strictly controlled.

Fizix

0 Jim Jacob over 1 year ago in reply to Fizix

Prodigy 205 points

Hello Fizix

Thanks for the quick rep[ly. On the overfilling, I use a high power white light LED system for another application and I overfill the array so as to get more uniformity across the active area. I have never seen an issue with this. Should I make a rectangular mask to place in front of the chip?

Jim

0 Fizix over 1 year ago in reply to Jim Jacob

TI__Mastermind 46405 points

Jim,

At 1 watt, probably not, but it will not hurt.

Fizix

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DLP6500FLQ: 775 nm operation