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DLP3010: Maximum illumination durability

Josel Go
Expert 7355 points

Part Number: DLP3010

Hi Experts,

We are designing a projection system around DLP3010 for a medical device. We require quite a large amount of power trasmittance from a 894nm VCSEL array. Current estiamtes at the DMD are an average irradiance of ~500mw/cm^2 (a pulsed 30% duty cycle light). I see in the data sheet that the recomended limit is 10mw/cm^2 for any wavelength over 800nm but for 410-800nm it is much larger at 26.1W/cm^2.

Could you predict/calculate the maximum power for the DMD at specifically 894nm?

Regards,

Josel

  • 0
    TI__Mastermind 23160 points

    Hello Josel,

    Thank you for your patience. DLP3010 is designed for display application in visible light range. We donot have the data for flux density limit at 894nm for this device.  we can not predict it. However ~500 mW/cm2 seems to be low and may ok to work. I do not have any data to support. You should consider the peak power too, sometime a very high peak power for a very short duration can also do a permanent damage.  

    It is medical application, I believe reliability and long life may be critical. I recommend using devices design for NIR wavelength.

    NIR (>700nm) DMDs product selection | TI.com

    regards,

    Vivek Thakur