LM3697: RGB LED

Asael Espinoza

Part Number: LM3697
Other Parts Discussed in Thread: TLC5973

Tool/software:

Hi TI team.

LM3697 is specified for three-string white LED driver but we wanna use it for a three-string RGB LED, is it possible?

If not possible, what part you recommend for a three-string RGB LED?

Thanks in advance.

0 Patrick Yao 10 months ago

Hi Asael,

Could you please kindly share what are the forward voltages of each R G B string? And do you need to control the 3 strings separately?

Patrick

0 Asael Espinoza 10 months ago in reply to Patrick Yao

Hi Patrick.

Thanks for asking.

Yes, we need to control the 3 string (each color, R G B) separately because we need to make combination of colors for different visual notifications.

Forward voltage of each RGB string is 5V or 12V. We have both options but 5V as the main option.

0 Patrick Yao 10 months ago in reply to Asael Espinoza

Hi Asael,

You could consider the TLC5973.

Patrick

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