Figure 4-2 shows the connections made to the MCT8329EVM to spin a 3-phase sensorless Brushless-DC motor.

An 4.5-V to 60-V power supply is connected to the PVDD and GND terminals on connector J10.

The three phases of the BLDC motor connect directly to the A, B, and C terminals of the screw terminal connector J11 provided on the MCT8329EVM.

Figure 4-3 MSP430FR2355 Microcontrollershows where the micro-USB cable is plugged into the MCT8329EVM to provide communication between evaluation module and GUI. The USB data and 5 V power from the USB is converted into UART data and 3.3 V power to power the MSP430FR2355 microcontroller. The 5 V from the USB power is limited to 500 mA and the 3.3 V from the FTDI chip is limit to 30 mA. If the user wants to supply more current to these rails, then use the 5V_SEL jumper J3 and 3V3_SEL jumper J5 to connect external power rails.