Led constant current driver with PWM dimming

sagar saste

Other Parts Discussed in Thread: LP5521

I am looking for led constant current driver with PWM dimming for dim the led.The rise and fall time of led should as low as possible.

so suggest constant current led driver.

over 9 years ago

0 Sami Kotijarvi over 9 years ago

TI__Intellectual 2510 points

Hi,

How many LEDs you would be driving? What is the supply voltage? Is it RGB or White LEDs?

For starters you could check the LP5521. 3-output LED driver. It has 8-bit adjustment for current and for PWM. It has internal memory, so you can upload programs that control the lighting pattern (for example on-off, ramping).

Thank you,

Sami

0 sagar saste over 9 years ago in reply to Sami Kotijarvi

Prodigy 100 points

I am going to use Cree's Led and near about 5 watt per led and total 8-9 led's i am going to use. Cree XP-G

0 Sami Kotijarvi over 9 years ago in reply to sagar saste

TI__Intellectual 2510 points

Hi,

It seems that the LED drivers I am working with will not suit to your application as the current levels seem to be high.

I guess you are working with LED light bulbs or LED lighting product.

Thanks,

Sami

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Led constant current driver with PWM dimming