Three-Phase BLDC / PMSM Motor Drive with High-Performance Microcontrollers Reference Design


Design files


This reference design describes a motor-control evaluation kit for spinning 3-phase brushless DC and brushless AC (BLAC) often referred to as permanent-magnet synchronous (PMSM) motors with example of sensorless field oriented / vector control (FOC). The implementation leverages the DRV8301 gate-driver IC as well as the TPS65381 power-management IC (PMIC). This reference design can be used as a high-performance, power-efficient, cost-effective platform to speed up development of PMSM control algorithms.

  • Reference design for managing interfaces to TPS65381 PMIC and DRV8301 gate-driver ICs
  • Encoder-based FOC with redundant sensorless-speed estimation
  • Speed and torque control loops
  • Follows TI MotorWare and HALCoGen conventions
  • Leverages ARM CMSIS math library
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU967.PDF (1158 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Complete listing of design components, reference designators, and manufacturers/part numbers


Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Arm Cortex-R MCUs

RM46L85216/32 Bit RISC Flash MCU, Cortex R4F, EMAC, USB

Data sheet: PDF | HTML
Auto-direction voltage translators

TXB01066-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing and +/-15-kV ESD Protect

Data sheet: PDF
BLDC drivers

DRV8301-Q1Automotive 3-phase gate driver

Data sheet: PDF | HTML
Digital isolators

ISO7241CQuad-channel, 3/1, 25-Mbps digital isolator

Data sheet: PDF | HTML
General-purpose op amps

TLV2781Single, 3.6-V, 8-MHz, RRIO operational amplifier

Data sheet: PDF
High-speed op amps (GBW ≥ 50 MHz)

OPA3652.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier

Data sheet: PDF | HTML
Isolated CAN transceivers

ISO1050Isolated 5-V CAN transceiver

Data sheet: PDF | HTML
Isolated DC/DC converters & modules

DCH010505SMiniature, 1W, 3kVDC Isolated DC/DC Converters

Data sheet: PDF
Linear & low-dropout (LDO) regulators

TPS73633-EPEnhanced product, cap-free NMOS, 400-mA low-dropout regulator with reverse current protection

Data sheet: PDF
Noninverting buffers & drivers

SN74LVC2G172-ch, 1.65-V to 5.5-V buffers with Schmitt-Trigger inputs

Data sheet: PDF | HTML

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Technical documentation

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Type Title Date
* Design guide Three-Phase BLDC and PMSM Motor Drive Design Guide Apr. 24, 2015

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