Driving 8 parallel white leds with 3.3V

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quadratic

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Hi,

I need to design parallel white led driver which will be used for a backlight application that consists of 8 parallel white leds in it and a 3.3V power supply. Vf of a white led is 3.5V and I want to drive them with 15ma per led means that 120mA total current need. I can't use any other power supplies in my embedded design, so i need to drive them with 3.3V so I think I should use inductor-based boost converter or capacitor-based charge-pump converter. However I have no experience about that.

After some search I found some ICs, one of them is MAX 1984 IC which is white led driver.(Datasheet is attached)

Is MAX 1984 suitable for this application? Have you ever designed an application like this, what would you suggest me about this issue?
 
From its datasheet the MAX1984 looks fine. I've never used one, though.
 
a backlight application that consists of 8 parallel white leds
Is MAX 1984 suitable for this application?
The quick answer is yes.
But, you say that the LEDs are connected in parallel.
Connecting LEDs in parallel is a poor idea at the best of times.
The MAX1984 drives the LEDs individually, do your LEDs have to be connected in parallel?

Have you ever designed an application like this
No.

what would you suggest me about this issue?
1 Get a MAX1984
2 Get some LEDs
3 Try it.

JimB
 
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