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4 Hardware and Software Overview
4.1 Hardware Connections Overview – MCF8315EVM
Figure 4-1
shows the major blocks of MCF8315EVM evaluation module. The MCF8315EVM is designed for
an input supply from 4.5-V to 35-V. The MCF8315 includes three integrated half-bridges and implements a
sensorless FOC algorithm to spin a motor with up to 5-A peak current. It also integrates an adjustable buck
regulator.
4.2 Connection Details
Figure 4-2
shows the connections made to the MCF8315EVM in order to spin a 3-phase sensorless Brushless-
DC motor.
An 4.5-V to 35-V power supply or battery is connected to the VBAT or VM and PGND terminals on connector
J7. There is a reverse polarity protection and Pi filter implemented on the VBAT and PGND terminals. To bypass
the reverse polarity protection and Pi filter, connect the power supply to the VM terminal or VM test point on the
board and PGND.
The three phases of the BLDC motor connect directly to the A, B, and C terminals of the screw terminal
connector J8 provided on the MCF8315EVM.
SLLU362 – DECEMBER 2022
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Figure 4-1. MCF8315EVM Major Hardware Blocks
Copyright © 2022 Texas Instruments Incorporated
Hardware and Software Overview
MCF8315EVM Evaluation Module
5
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