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LP5523: LP5523TM/NOPB

Edoardo Lotti
Prodigy 160 points
Part Number: LP5523

Good morning,

I would like to use the Led driver PN LP5523 that is able to manage up to 9 Leds.

Since I need to drive more than 25mA on each channel, I would like to use 3 channels is parallel connecting 3 output together in order to drive 3 final Leds.

Do you confirm this can be done or anyhow we should avoid this.

Thanks a lot.

Best regards Edoardo.

  • 0
    TI__Genius 14295 points
    Hi, Edoardo,

    This is OK and please turn on/off these 3 channels together.

    Please help to click "Resolve" if the problem is solved.

    Thanks.
    Regards,
    Kenneth
  • 0 in reply to Kenneth Du
    Prodigy 160 points
    Hi Kenneth, yes all the channels will be activated together but since the enable are not in the same register could be this an issue?
    Can I program sligtly different the current driven on the 9 channels or do I need to have all the channels part of the same Led perfectly aligned/equivalent?
    In the past I used some laser drivers and there, I could modulate differently the channels connected to the laser. In that case I was able to manage with one channel the offset and with a second the modulation.
    Thanks a lot for your support.
    Best regards Edoardo.
  • 0 in reply to Edoardo Lotti
    TI__Genius 14295 points

    Hi, Edoardo,

    Not a problem for slightly difference.

    Please help to click "Resolve" if the problem is solved.

    Thanks.
    Regards,
    Kenneth