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TI Home » TI E2E Community » Support Forums » Power Management » LED Drivers/LCD Bias » LED Drivers/LCD Bias Forum » Driving high current LEDs that are being pulsed for optical data operation from a battery
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Driving high current LEDs that are being pulsed for optical data operation from a battery

Driving high current LEDs that are being pulsed for optical data operation from a battery

This question is not answered
Teddy13640
Posted by Teddy13640
on Jul 27 2012 14:15 PM
Prodigy200 points

I have an application where I am driving 4 LEDs in series.
I am driving with 1A with a forward voltage of 2.5V per LED.
This is easy to accomplish using a 15V supply. 


But for this applicationI only have a 3.7V lithium battery as the source to drive them.
The LEDs are used for optical communications and are pulsed
at 1MHz to generate the binary data output.

Is there a TI part that I can use to generate the necessary
voltage (12-13V) and current (1A) to operate the LEDs for this type of application?

Thanks,

Teddy

LED high current battery
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  • Vincenzo Pizzolante
    Posted by Vincenzo Pizzolante
    on Aug 17 2012 04:36 AM
    Genius9560 points

    have a look at TPS61087 and/or at TPS61500,

    in according to the side specifications you have to meet

    Vincenzo

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