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Select IC to drive 3 different LEDs

Prodigy 20 points

Replies: 4

Views: 163

Dear E2E Community,

I'm looking ICs to drive 3 different LEDs with independent brightness control (more then 3000:1) using PWM or serial.

Typical drive current of each LED is 350mA and forward voltage of LEDs are: 3.05V, 2.9V, 1.85V.

Power supply's a Li-ion (3.2-3.7V).

Flicker Free. No audible noise.

Min Cost of BOM.

What modern ICs can you offer?

  • Hi Andrey,
    I has forward this question to right person, response may be delay due to the weekend.
    Regrads
    Sean
  • If you can use I2C, you can look at LP5030 with 10 channels together to get 350mA.

    Thanks and best regards,

    Kenneth

  • In reply to Kenneth Du:

    Yes, I can use I2C. Can I directly connect 10 outputs into one?
  • In reply to Andrey Rudakov:

    Yes, you can combine several channels together to get more current.

    Thanks and best regards,

    Kenneth

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