OK, so can your ADD5211 drive type-A 1 string 2 LEDs? Not ADP2441.
Power of customer will be 4.5V to 5.5V.
I'm a step closer now, but still have a problem left ...
I reduced the switching frequency to 361 kHz, heat reduced a lot and power usage went down a little bit.
But I have a 2 to 3V ripple on the LED voltage line, the Cout cap warms up more than…
I've got a small 4-string LED driver board made using AD5211.
It's schematic is basically the 'application circuit' from current datasheet and from Eval_ADD5211_Calculation.xlsx
Rfreq = 49.9K (default)
Rc/Cc = 100R, 2.2uF (default…
Just a simple question that can ADD5211 or ADP8140 control dimming individually on each of multi strings of LEDs ?
If not, please let me know any products can have individual string control ?
Thanks for your answer here.
As for your answer for my question-1,
Our customer is studying with your ADD5211 as drive current control.
So from your spread sheet past you enclosed, he has tryed to calcurate as my enclosed.
Look at the sheet…
I always have a lot of questions about ADM127x ISET and ISTART calculation ,ADI HotSwapDesigner excel file calculated resistor value , sometimes we not have these component can be used, so can you tell me how fast to calculate resistance v…
This is the spec of the LED backlight from the datasheet:
Maximum LED voltage of this panel can be as high as 49.40 at cold operating temperatures, and as high as 46.32V at normal room temperature.
The LT3599 is only capable of powering up to 44V of…