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LED Driver choice for outdoor application

I need to make a 7 segment digit for outdoor applications. We wanna to use a LED driver to control the brightness and also report us fails as open circuit.

Each segment need to have 28 LEDs. Have anyone a driver to indicate?

We was concern initialy by multiplexing may be a problem in outdoor but as 1 digit uses 196 LEDs, if we multiplex fast enough it will not be a problem.

  • Hi Gabriel,

    Sorry for the late response. The appropriate application engineer has been notified of your post and will respond accordingly. Thanks for your patience.

    Best regards,
    Shirley He
  • Hi Gabriel,

    I have one concern: do you want each channel to drive 28 LEDs in serial?

    If not, can you show me more info about how you want to configure your 28 LEDs.

    Thanks.

    Regards,
    Kenneth
  • Hi Kenneth,

    About the LEDs configuration I dont choose it yet. My objective is to control each segment individually so I wondering to use 1 channel per segment.

    I was looking for drivers and think the TLC591x could be a good choice. They have fault detection and I could control and dimming the LEDs so well.

    The problem will be to choose a good LED configuration for each segment because I dont want to use all of them in serial also I want to use 12V of power supply, but it can be changed. 

    Best Regards,

    Gabriel Reis.