Hi, what is the max freqency on pwm input of LT3496?
I would like to drive 1.5625KHz from PCA9632 to update existing desing
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LT3496
Production
The LT3496 is a triple output DC/DC converter designed to operate as a constant-current source and is ideal for driving LEDs. The LT3496 works in buck...
Datasheet
LT3496 on Analog.com
Hi, what is the max freqency on pwm input of LT3496?
I would like to drive 1.5625KHz from PCA9632 to update existing desing
Hi Mederic,
Sorry for late reply.
Unless specified in the datasheet, there isn’t really a hard limit for the PWM dimming frequency of our LED driver parts. Dimming around 1kHz should be possible through the PWM pin of the LT3496. The diming ratios achievable may be reduced though with higher dimming frequency considering PMOS being used to do the dimming. This may not be an issue if you don’t need super high dimming ratios. You may get hold of one of our demo boards through our website or through an FAE so you can try in proto.
Hi Mederic,
Sorry for late reply.
Unless specified in the datasheet, there isn’t really a hard limit for the PWM dimming frequency of our LED driver parts. Dimming around 1kHz should be possible through the PWM pin of the LT3496. The diming ratios achievable may be reduced though with higher dimming frequency considering PMOS being used to do the dimming. This may not be an issue if you don’t need super high dimming ratios. You may get hold of one of our demo boards through our website or through an FAE so you can try in proto.