TLC5926 Tie LE to CLK?

Alan Grover

Other Parts Discussed in Thread: TLC5926

I'd like to simplify the interface of the TLC5926 to two signal lines: SDI & CLK.

I will tie /OE to Vdd, and not attempt to read SDO.

May I tie LE to CLK? The application note http://www.ti.com/lit/an/slva346/slva346.pdf strongly implies this will work for the 5926. I understand that the OUT's will be delayed 1 clock.

over 12 years ago

0 Dick Stacey over 12 years ago

TI__Genius 14890 points

Alan,

Yes, you can tie LE to CLK. With each clock cycle, each LED will change based on the value of the bits shifting in. Depending on your application, this may or may not be an issue.

Additionally, /OE controls the LED outputs, not SDO. You should tie /OE to GND (as the application note you reference does). This will keep the outputs on or off based on the bit pattern.

Regards,

Dick

0 Alan Grover over 12 years ago in reply to Dick Stacey

Prodigy 20 points

Dick,

Thanks for the really quick response!

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TLC5926 Tie LE to CLK?