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LP8550: About the use of LP8550

Takanari Nishikawa
Prodigy 80 points
Part Number: LP8550

I am thinking of a configuration like the attached document (LED ON / OFF is controlled by an external signal), but is there any problem in use?

Image.xlsx

  • 0
    TI__Mastermind 18550 points

    Hi Nishikawa-san,

    I reviewed the LP8550 datasheet and it seems that this kind of configuration is not possible because when any of the strings are not turned on at power up, those strings are detected as an open fault and will be disabled. So I don't think this external control of the string on/off will work.

    Kind Regards,

    Liaqat