Category: Hardware
Product Number: LT3950EMSE#PBF, LT3950
Hi,
I use the LT3950EMSE#PBF to control LCD backlight.
Actually the external PWM signal is settled to 333Hz and it comes from MCU.
Unfortunately, I can ear this frequency on my board.
When I crank up the frequency outside the audible band (20KHz) everything ok.
The datasheet doesn't specify the maximum external PWM frequency. Is it ok to drive this pin of LT3950EMSE#PBF at 20KHz ?
Regards
Pascal
