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TLC5955: interface introduction

Roy Chou1
Genius 16190 points
Part Number: TLC5955

Hi Team,

Instead of SPI interface, I have no idea what is the interface of TLC5955.

Could you let me know if we have online course or APP note?

Honestly. I don't know which page should we read in datasheet.

Roy

  • 0
    TI__Genius 16190 points

    One more question, How could TLC5955 do the sync operation, as I know, there is Vsync in local dimming IC, but I couldnt find in TLC5955.

    Roy

  • 0
    TI__Genius 12915 points

    Hi Roy,

    Interface of TLC5955 is similar to SPI. SIN/SOUT/SCLK are the same as MOSI/MISO/SCLK. LAT latches the data from the common shift register into the GS data registers or control data registers, instead of CS. When latching GS data, all new GS data are refreshed by LAT rising edge at the same time, which may be the VSYNC function you mentioned. You could find detail description in datasheet section 8.3.2. Figure 20 could also help.