LM3644: can support 1S2P LEDs, each channel 1A current?

Bruce li

Part Number: LM3644
Other Parts Discussed in Thread: LM3565

Dear Experts,

I want to know if LM3644 can support 1S2P LEDs, each channel 1A current?

Besides, my customer have 2S2P and 3S2P topo LEDs, each channel is 1A current, each LED voltage is around 3V. Is there any suitable device for such requirment? Thanks a lot.

over 6 years ago

0 Sean Zhou over 6 years ago

TI__Mastermind 22745 points

Hi Bruce,
I'm sorry that the maximum outpout volatge for LM3644 is less than 6V. So you can't serial connect two or more LEDs in one string. youcan check whether LM3565 can help you or not.
Regards
Sean

0 Bruce li over 6 years ago in reply to Sean Zhou

Genius 5580 points

Dear Sean,
Got it, thanks a lot for your recommendation.

0 Sean Zhou over 6 years ago in reply to Bruce li

TI__Mastermind 22745 points

Hi Bruce,
Sure, if you have any question, let me know.
Regards
Sean

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LM3644: can support 1S2P LEDs, each channel 1A current?