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DLP® LightCrafter™ 6500 Mounting

Mariya Chavarha
Prodigy 20 points

Hi, 

This is a question about DLP® LightCrafter™ 6500 evaluation module mounting. I'm reviewing this document for DMD Series-600 system mounting http://www.ti.com/lit/an/dlpa053/dlpa053.pdf.  But it's unclear to me if the evaluation module already comes with this assembly (mounted to PCB board, with the heatsink, etc), so that just the PCB board housing the DMD needs to be mounted?  

Thanks,

Mariya

  • 0
    TI__Guru 54390 points

    Hello Mariya,

    The DMD has a PCB board and is secured into the socket, but the kit does not come with a front or back mounting plate or heatsink and associated hardware.

    The report you are looking at is showing a mounting concept, but you will have to machine and source springs and screws to build up the mounting system. 

    Typically the front of the bracket is part of an optical module that you would design.

    Fizix

  • 0 in reply to Fizix
    Prodigy 20 points

    I see, 

    Just to verify I understand this - from the assembly for mounting concept on page 21, the evaluation module comes with the DMD attached to the PCB. The optical chassis, gasket, system aperture in the front, and the thermal pad and the heat sink in the back would have to be custom built?

    Can the DMD be run without a heat sink? Within the PCB board part holding the DMD there are four mounting holes - couldn't I use those? 

    Mariya

  • 0 in reply to Mariya Chavarha
    TI__Guru 54390 points

    Mariya,

    You are correct that the EVM comes with the DMD board (PCB) with the DMD already attached to the socket and that all of the rest is up to the end user to manufacture (all the items you listed).

    For low power applications (less than ¼ Watt) you can indeed run without a heat sink, provided the ambient is around 25° C and adequate air flow to the PCB is provided.  Otherwise you will need to provide at least a simple stick on heat sink (similar to a "northbridge" chip passive cooler) and possibly a small fan.

    Indeed, the four holes are for both mounting the DMD PCB board and any heat sink solution.

    Fizix