Hi Serafino,
You should have seen the waveform if you zoomed in to a 10us/div. The 100nF bootstrap capacitor is intended to be used at frequencies higher than 10kHz. If you planning to run a lower PWM frequency, the bootstrap capacitor should be increased and a 5 Ohm series resistors should be added between the GVDD supply and the GVDD_x pins as described in section 7.3.2.1 of the datasheet.
The development board is intended to demonstrate several applications such as brushed motor, stepper motor, and thermo electric cooling (TEC).
Are you planning to control a TEC? If not, the capacitors are not required.
The series inductors are recommended to protect against a short. Please refer to the 6th paragraph in section 7.3.2.2 of the datasheet for more details.
You should have seen the waveform if you zoomed in to a 10us/div. The 100nF bootstrap capacitor is intended to be used at frequencies higher than 10kHz. If you planning to run a lower PWM frequency, the bootstrap capacitor should be increased and a 5 Ohm series resistors should be added between the GVDD supply and the GVDD_x pins as described in section 7.3.2.1 of the datasheet.
The development board is intended to demonstrate several applications such as brushed motor, stepper motor, and thermo electric cooling (TEC).
Are you planning to control a TEC? If not, the capacitors are not required.
The series inductors are recommended to protect against a short. Please refer to the 6th paragraph in section 7.3.2.2 of the datasheet for more details.