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DLP650TE: Needed Inquiry

Renan Santos Adriano
Mastermind 21040 points
Part Number: DLP650TE
Other Parts Discussed in Thread: DLP9500, DLP7000, DLP9000

Hello Team,

My customer has an inquiry about the device DLP650TE says that for wavelengths below 410nm the maximum illumination is 2 mW/cm2, but for wavelengths between 410 nm to 800 nm this level is 29.3 W/cm2, so they wondering if this spec is correct and why such difference in terms of device lifetime?

Regards,

Renan

  • 0
    TI__Expert 3700 points

    Hi Renan,

    This device is intended for Display applications for the human eye. Our internal qualification process focused on this applications, and not outside of them. We do not have information on device performance outside of the wavelength range that you mention.

    This specification strategy is very similar to other devices in our portfolio. There may be a time in the future where we are able to specific higher power levels outside of the current range.

    Our Advanced Light Control products do have specifications outside of the visible range, into the UV and IR regions. The information is in the datasheets on ti.com.

    Please let us know if this answers your customer's question.

    Thanks,

    Matt

  • 0 in reply to Matt Soucek
    TI__Mastermind 21040 points

    Hello Matt,

    Good day

    Thank you for this response but this those not resolved my customer inquiry. Datasheet of the device expresses: "Simultaneous exposure of the DMD to the maximum Recommended Operating Conditions for temperature and UV illumination will reduce device lifetime." So they are wondering about the reduced device lifetime. How many hours of work will have the device working at UV in comparison with RGB? Particularly they are interested in using the device at 405 nm for 3d printing applications.

    Regards,

    Renan

  • 0 in reply to Renan Santos Adriano
    TI__Expert 3700 points

    Hi Renan,

    Thank you for the additional details. 

    The note from the datasheet is common guidance we give to customers based on historical use case data. UV in a display application can come from un-filtered light from a lamp source, so there has been a cutoff of wavelength in what we can support.

    TI does not have the data at this time to provide guidance on device lifetime outside of the datasheet specifications. There will not be a direct correlation of lifetime just below the 410nm specification, i.e. will not go to zero. The customer would have to perform the experimentation.

    Our Advanced Light Control products like the DLP7000, DLP9000, DLP9500, and the DLP6500 have specifications that go down to 400nm. In this case, we recommend moving the array temperature down to the 20-30C range. That is one design parameter that the customer can use if indeed they would like to explore using this device for their application.

    Looking forward to your feedback.

    Regards,

    Matt