T
treez
Guest
Hi,
We wish to analog dim this chip down to 25% output, and then we obviously have to PWM dim to further get the leds dimmer from there. I trust that it is possible to pwm dim the chip with a 0.3v control voltage into the EN/DIM pin?.
The datasheet seems to show pwm dimming only being done when the EN/DIM pin is pulled up to 1.27v.
MP2489 datasheet
https://www.monolithicpower.com/pub/media/document/MP2489_r1.23.pdf
We wish to analog dim this chip down to 25% output, and then we obviously have to PWM dim to further get the leds dimmer from there. I trust that it is possible to pwm dim the chip with a 0.3v control voltage into the EN/DIM pin?.
The datasheet seems to show pwm dimming only being done when the EN/DIM pin is pulled up to 1.27v.
MP2489 datasheet
https://www.monolithicpower.com/pub/media/document/MP2489_r1.23.pdf