User Manual
8
Rev. 1.0
2021-01-21
Motor Control Shield for Arduino with BTN7030-1EPA
C1/C3: This ceramic capacitors support C4 to keep the supply voltage ripple low and cover the fast
transients between the Vs-pin and the GND-pin. The layout wiring for C1/C3 must be shorter than for C4 to the
NovalithIC™ Lite to keep the parasitic PCB-wire inductance as small as possible. In addition the parasitic
inductance could be kept low by placing at least two vias for the connection to the GND-layer. On this shield
capactiors of 68 nF are mounted.
C6/C8: These ceramic capacitors are important for EMI. Good results have been achieved with a value of 220
nF. In terms of layout, it is important to place these capacitors between “OUT” and “Vs” without significant
additional wiring from C6/C8 to the Vs- and OUT-line. These capacitors are not mounted on this shield.
C5/C2: These ceramic capacitor help to improve the EMC immunity and the ESD performance of the
application. Good results have been achieved with a value of 220 nF. To keep the EMC and ESD out of the board,
the capacitor is most effective when positioned directly next to the board connector. In addition, the parasitic
inductance could be kept low by placing at least two vias for the connection to the GND-layer. These capacitors
are not mounted on this shield.
