DocID023917 Rev 1

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AN4199

Design guidelines for schematic and PCB layout

23

The coils must be separated to avoid crosstalk. Shielded parts must be used.

Figure 24. Coils

6.4.5

the ceramic capacitors.

The PWM frequency is 384 kHz. In order to compensate the inductive effect of the copper

track, the ceramic capacitors must be placed as close as possible to the supply pins. The

recommended distance between the capacitors and the supply pins is less than 5 mm.

Main filter:

The coils must be

separated to avoid

crosstalk