cupoftea
Advanced Member level 6
Hi,
Do you know how to calc the switching frequency of an L4987 based Buck?
Pg 5 of datasheet gives the ramp peak....but there is no indication of what capacitor discharge current is then used to doscharge down to the trough. I took it that the ramp peak is a linear function and will find it by using "y=mx+c" and the two pais of values given.
L4978 datasheet
Do you know how to calc the switching frequency of an L4987 based Buck?
Pg 5 of datasheet gives the ramp peak....but there is no indication of what capacitor discharge current is then used to doscharge down to the trough. I took it that the ramp peak is a linear function and will find it by using "y=mx+c" and the two pais of values given.
L4978 datasheet