LM3429-Q1 Dimming frequency

Kei Sato73562

Expert 2310 points

Other Parts Discussed in Thread: LM3429

I have some question fort LM3429 Dimming frequency.

What Hz can you input to in nDIM?

Can it input 10kHz into nDIM?

over 10 years ago

0 Clancy Soehren over 10 years ago

TI__Mastermind 23810 points

I'm moving this to the LED Driver forums so that you can get a quicker response.

-Clancy

0 Victor Chen_HK over 10 years ago

TI__Expert 5130 points

Hi,

You can follow the equation 26 in LM3429 data sheet pg.19 to calculate the minimum pulse width of the PWM dimming signal. Then you can determine the frequency of the PWM signal.

Best regards,

Victor

Power management

Power management forum

LM3429-Q1 Dimming frequency