LM3463: LM3462 with 4 high power led

sebastien DECORME

Part Number: LM3463

Hi,

I would like to know if it is possible to drive 4 independent high power LED (3.3V / 3A) with a the LM3462 and a FET Stage.

I would like to drive the led with a 12 V Power.

On the evaluation board there is 150V/29A Fet but the board can only deliver 200ma per channel,

Is it possible to modify the evaluation board to make my tests ?

Thanks for you help.

4 months ago

0 Steven Li 4 months ago

TI__Genius 15335 points

Hi Sebastien,

sebastien DECORME said:
I would like to know if it is possible to drive 4 independent high power LED (3.3V / 3A) with a the LM3462 and a FET Stage.

I would like to drive the led with a 12 V Power.

It is possible for LM3463 to work in this application condition if you can make sure your input voltage does not fall below 12V.

sebastien DECORME said:
Is it possible to modify the evaluation board to make my tests ?

Yes. It is possible to do so.

Best Regards,

Steven

0 sebastien DECORME 4 months ago in reply to Steven Li

Prodigy 30 points

Thanks Steven,

I will calculate the power loss with cable to not fall under 14V.

Is there a spreadsheet to calculate the value to configure the board ?

Thanks

0 sebastien DECORME 4 months ago in reply to sebastien DECORME

Prodigy 30 points

Is there apspice file for the eval board ?

Thanks

0 Steven Li 4 months ago in reply to sebastien DECORME

TI__Genius 15335 points

Hi Sebastien,

Sorry but there is no spreadsheet or PSpice model for LM3463.

Best Regards,

Steven

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LM3463: LM3462 with 4 high power led