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DLP4710: Low power, high resolution DLP pico projector

Part Number: DLP4710
Other Parts Discussed in Thread: DLPA3000, DLPC3439

Hello,

My application is trying to use the DLP pico chipsets, in a low power system. I'm trying to figure out which chipset would give us the best resolution within our power limits. We are looking to keep total power usage around 5W. 

I see the DLP4710 chipset EVM has a upper limit of 19 V DC, 4.74 A, but could you give me a low power estimate for a system using this chipset? I see the DLPA3000 has a minimum I-led of 300mA at 8V, does this mean all three led's will be using 300mA at the same time or would each led use 300mA sequentially and switch off when the other leds are on?

If this chipset exceeds our power limit, what chipset would you recommend next?

Thanks.

  • Briana,

    The DLPA3000 does not drive all three LEDs at the same time. Rather, the chipset drives each of the three LEDs one at a time. As such you don't need to consider a situation where all three LEDs are active.

    As for your power budget, this chipset (the DLPC3439) should be sufficient for your needs. Assuming you run the LEDs at 300 mA, you would be looking at 2.4 W of power from the LEDs. With no further power saving measures taken in the system, you may expect around 0.8 - 1.2 W of additional power consumed by the DMD and controller together.

    Depending on your application, you may be able to push this power consumption further down. What sort of application are you considering with this chipset? Feel free to make a friend request to discuss further offline.

    Regards,

    Philippe Dollo