Hi,
I'm designing an LCD Backlight driver using the LP8860-Q1,
I have 3 strings of LEDs, and the design parameters are:
Vin = 12V
VDD = 5V
Fsw = 400 KHz (internal)
Vout = 21V
Current per string < 100 mA
Fout of the PLL : intend to use 5MHz
I intend to add the necessary EMI filtering components to the circuit. One important component is the common mode choke, as mentioned in the 'snva813' document
my question is : how can we properly choose this choke? do you have any article that explains more clearly this point?
Best Regards,
Oussama
