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About control of TLC5951 (difference from TLC5941)

Satoshi
Guru 19575 points
Other Parts Discussed in Thread: TLC5951, TLC5941

it using only GS gradation of TLC5951(each channel),can it dimming separately?

Since TLC5941 had used, it is the best if it can completely use in a similar manner.


A supplement is written to below.
・Compared with TLC5941, DC, Brightness Control, Function Control, GSCKR, GSCKG, and GSCKB have added.
⇒Can they use being able to disregard for GSCKR/G/B etc.?

　⇒When it can use, are these good at GND connection?
　　(GSCKR/G/B is a function which is not used.)

・TLC5951 will use 2-devices of cascade connection.

Thank you for your consideration.

  • 0
    Guru 19575 points

    Although it is the contents asked the other day, how is a situation?

    Thank you for your consideration.

  • 0 in reply to Satoshi
    Guru 19575 points

    Is it right although I think that it is satisfactory depending on the same usage as TLC5941?

    Thank you for your consideration.

  • 0 in reply to Satoshi
    TI__Intellectual 1820 points

    Hello Satoshi,

    Sorry late reply.

    Yes, tlc5951 have 7bit DC for each channel, also have 8bit BC for each color group, thus you can dimming each channal seperately, also you can dimming each color group(8 channels as one group) seperately.

    tlc5951 control manner is different from tlc5941.
    First, it has two independent ports for GS data input and DC data input. This is useful if you want one MCU(with EEPROM) on LED module to send DC data automaticly after power up, while use another controller(outside of LED module) to send GS data seperately.
    Secondly, tlc5951 use 3 independent grayscale clock input to implement PWM of each color. This is useful if you want implement different gamma correct for each color by inputting different grayscale clock. Ofcourse, you can tie these 3 pins together.
    Third one, tlc5951 enable grayscale PWM by putting XBLNK high, while tlc5941 need BLANK low to enable PWM.

    Not sure if I answered your question. If any more, please let me know

    Best regards

    Mike