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TLC5951 daisy chained speed

Edward Catley
Prodigy 20 points
Other Parts Discussed in Thread: TLC5947, TLC5951

I am going to be using either a TLC5947 or a 5951 for a RGB POV display and so high speed data transfer is essential. The 5947 specifies that the max data shift clock freq for cascaded devices is 15MHZ but the 5951 does not. Can you confirm whether or not the max transfer freq for cascaded 5951's is 30 or 15MHZ?

  • 0
    TI__Intellectual 980 points

    Hello Cathey-san,

    Data transfer of TLC5951 for cascading is 30MHz as maximum.   

    In case of TLC5947, it's used for amusement lighting by stand alone too.So data transfer speed are separeted.

    Apprication of TLC5951 is for LED display panel, these are used by cascading mainly.Therefore data transfer speed is not separeted on data sheet.

    Thank you & Best Regards

    K.Narisawa