• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 392 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LED Driver Reccomandation

Matteo Locatelli
Prodigy 80 points
Other Parts Discussed in Thread: TPS54201

Good morning,

I need a LED driver for these design parameters:

- Can drive from 1 to 4 LEDS with a forward voltage in the range 2.0 - 3.5V

- Power supply 24V 

- Maximum current 1.5A

- PWM input  for led dimming

Could someone reccomend a good part number for this parameters?

Thank you,

Matteo

  • 0
    TI__Genius 14295 points
    Hi, Matteo,

    TPS54201 should meet your requirement.

    If you think this answers your question, please help to click "Resolve".

    Thanks.
    Regards,
    Kenneth
  • 0 in reply to Kenneth Du
    Prodigy 80 points
    Dear Kenneth,
    Thank you very much for the answer!
    If possible I would like to add one more requirement.
    If I need to drive the led in strobe mode, keeping fixed the dimming level for the strobe time but
    needing to have the leds on in less than 5uS from the signal rise it seems from the TPS54201 datasheet that I
    can't for the 300uS mode detection delay. I'm right? Can I bypass this, keeping in mind that I would like to drive the pin from a microcontroller? Otherwise can you advice a better part number for these narrower requirements?

    Thank you very much,
    Best regards

    Matteo
  • 0 in reply to Matteo Locatelli
    TI__Genius 14295 points
    Hi, Matteo,

    The 300 us is required when the device is enabled to detect whether it's PWM mode or analog mode.

    After that, there is no 300 us delay.

    Thanks.
    Regards,
    Kenneth