Our customer is studying to use Ir-LED driver with your white LED driver like a ADP8140.
So what is the notes to use as Ir-LED driver?
Only Vf difference?
Why are your LED drivers designed for white LED only?
Actually, nearly all of ADI's LED drivers can be used to drive any LED. You can see the list here:
The only exception is the ADM8843 and ADM8845, which are intended to drive LEDs with a forward voltage (Vf) between 3 and 4.5V. Other than that, any of these ICs will work well with IR LEDs. Often times, our IR LED customers are looking for higher current drives, and if that is the case for you, then I would recommend to start with looking at the ADP8140 and the ADD5211. The ADP8140 is a 4 channel, high current, feature rich and incredibly flexible LED controller. It can be used in nearly any topology or application. The ADD5211 is a multi channel, 800mA (total LED current), high voltage, boost regulator. Please let me know if you have any questions about these parts. Or if you would like to do something that you don't see a good solution for.
Thanks your your kindly answer for this.
I am clear about your LED drivers.
OK, I will visit our customer and recommend your good LED drivers which are able to use for any Ir- LEDs.
In fact, customer needs the following rating.
type #1, 4 LEDs , per 60mA
type #2, 1 LED, 600mA
He is testing type #1 and type #2.
That Ir-LED will be used for lighting IR-camera security.
So the current will flow continuously max 24hours/day .
I can update the result after visit customer later.
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