Other Parts Discussed in Thread: LM3409
Hi,
I use 10 buck LM3409HV for driving 10 strings of 10 led (Vin = 48V and iled = 2.5 A)
each LM3409HV are managed by DAC (for analog dimming) or by PWM or both.
PWM frequency : 20 khz
Question : is it recommended to put ceramic capacitor at the output for this configuration (analog and pwm dimming)?
Can i put electrolytic capacitor at input of each parts or it's better to put only ceramic capacitors (the price is not the same for high capacity in ceramic)?
best regards