Texas Instruments DRV8311HEVM, User Manual

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4 Hardware and Software Overview
4.1 Hardware Connections Overview – DRV83 LAUNCHXL-F280049C
Figure 4-1 shows the major hardware blocks of the DRV8311HEVM. The DRV8311HEVM is designed for an
input supply from 3-V to 20-V. The DRV8311 includes three integrated half-bridges that can drive up to 5-A peak
current which can be used in conjunction with an external MCU for sensored or sensorless trapezoidal control,
sinusoidal control, or Field-oriented control (FOC).
GND
Motor Connectors
and Test Points
Hall
connectors
Current Shunt
Amplifier Outputs
Power
DRV8311S/H/P
3.3V buck
regulator
tSPI Address Select
(DRV8311P only)
VIN_AVDD / Hall
Power select
Hardware variant
jumpers (DRV8311H
only)
GND
Voltage rail test
points / LEDs
SPI enable / test points
(DRV8311S only)
VM test point and LED
Figure 4-1. Major hardware blocks of the DRV8311HEVM
4.2 Connection Details
Figure 4-2 shows the power supply and motor connections made to the DRV8311HEVM in order to spin a
3-phase sensored or sensorless Brushless-DC motor.
A 3-V to 20-V power supply or battery is connected to the VM and GND terminals. The three phases of the
BLDC motor connect directly to the OUTA, OUTB, and OUTC terminals of the screw terminal provided on the
DRV8311HEVM.
For sensored applications, to connect the Hall sensor outputs to the Hall connectors on the DRV8311HEVM,
push down on the respective terminals to open the sockets and insert the Hall sensor wires.
Hardware and Software Overview www.ti.com
6 DRV8311HEVM User's Guide SLOU552 – JULY 2021
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