TLC5926: Unclearness about timing for the TLC5926/27 LED driver

Jonathan Geronga

Part Number: TLC5926

Hi Team,

We have a customer inquiry about figure 1 of TLC5926 datasheet below:

Figure 1 shows a short active-low OE. No "break lines". Shouldn't OE be held constant low if the output drivers are desired enabled all the time?
Is the sequence of OUTx-to-be bits Big or Little Endian? I.e., which bit comes first? OUT15-to-be or OUT0-to-be? I think it looks like OUT15-to-becomes first.

Please confirm.

Let me know if you need more information.

Thanks!

Jonathan

over 5 years ago

0 Hardy Wu over 5 years ago

TI__Genius 12915 points

Hi Jonathan,

1) Sorry I am confused about the question. You mean the Figure 1 in page 9? But it is plot of output current vs output voltage and did not show anything with OE.
Yes OE should be held low to enable output.
2) Output channels should turn on at the same time. But we also have no EVM here so I cannot confirm it.

0 Jonathan Geronga over 5 years ago in reply to Hardy Wu

TI__Expert 7930 points

Hi Hardy,

I will now put this to "Resolved" since I did not hear any more response with the customer.

Thank you for your support.

Regards,

Jonathan

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TLC5926: Unclearness about timing for the TLC5926/27 LED driver