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Asking for the LED driver solution

SHH
Mastermind 30866 points
Other Parts Discussed in Thread: LM3464, TPS92411, LM5021

Hi Team,

Could you recommend the proper solution for the LED driver? TPS92411 is ok? Did we have 4 string solution?

Support 4 string , String > 77.59V , each string  131.25 mA max . 

Thanks,

Scott

  • 0
    TI__Mastermind 25500 points

    I would need to know what input voltage range is used and whether PWM or analog dimming is required. But one route is the LM3464. It will control 4 strings and work with nearly any other regulator. For an example you can check out http://www.ti.com/tool/lm3464-120v24w which is with the LM5021, but it will work with other regulators, it all depends on the input voltage. I'm guessing this is an AC-DC solution? If so the TPS92411 could do it but it wouldn't be as efficient or have as good PF as you could only stack one or two LED strings on each circuit.