MPQ3362 dev schematic

Reference Designs
1

Hello
I have used dev board schematics to implement LED dimming circuit.
I need some clarification please -

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Looking at the schematic and mu scenario:
4 LEDS string with 3.5V forward Voltage (total 14V)
VIN in my case 12V
R5 in my case 0.560R
D2 fitted
R6 NO fit
Rest values are same as in schematic.

So looking at the schematic and my scenario I will not be able to turn OFF/DIM enough LEDS as the will always be ON .

Is it possible to DIM LEDs to completly OFF state ? without turning VIN=12V OFF?

Thanks

2

Hi @grzegorz.dudzik

You can use the PWM dimming or Analog diming to control the LED current amplitude. Please refer to pg 10 in DS of MPQ3362.

Thank you
Saurabh