2 Introduction
The MCF8316A provides three half-H-bridge integrated MOSFET drivers with sensorless FOC control to drive
a three-phase brushless DC (BLDC) motor at 12-V/24-V DC rails or battery powered applications. The device
integrates three current-sense amplifiers (CSA) with integrated current sense for sensing the three phase
currents of BLDC motors to achieve optimum FOC control. Simplified schematic of MCF8316A is shown in
Figure 2-1.
4.5 V to 35 V
MCF8316A
Three Phase Integrated
FET driver
M
Built-In Protection
OUTC
nFAULT
BRAKE
DIR
SPEED
Buck Regulator
OUTB
OUTA
FG
Optional I
2
C
Sensorless FOC
Control
Figure 2-1. Simplified Schematic of MCF8316A
This tuning guide provides the steps to tune a 3-phase BLDC motor using the MCF8316A. The tuning process
is classified into two sections: Essential controls and Basic controls. This process is also detailed in the Guided
tuning section in the GUI.
• Essential controls: Tuning steps to successfully spin the motor in closed loop.
• Basic controls: Tuning steps to conform to use-case and explore features in the device.
2.1 Hardware and GUI Setup
Below are the items that are required to run through this tuning guide.
1. MCx8316AEVM Board.
2. A computer with the MCF8316A_GUI installed.
3. A motor to be tuned using this process. It will be good to have motor datasheet but it is not mandatory.
4. A DC Power Supply rated for the motor.
5. Basic lab equipment such as a Digital Multimeter (DMM), Oscilloscope, current probe and voltage probes.
2.1.1 Jumper Configuration
Ensure the hardware is configured according to the jumper configuration as shown in Figure 2-2. Red boxes
indicate where jumpers should be installed on the EVM.
www.ti.com Introduction
SLLU335A – AUGUST 2021 – REVISED JANUARY 2022
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MCF8316A Tuning Guide 3
Copyright © 2022 Texas Instruments Incorporated
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