Single Microcontroller 18-V/600-W BLDC Motor Control Reference Design With Bluetooth® Low Energy 5.0
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Key Document


This reference design offers a Bluetooth® 5.0 SimpleLink™ option with better industrial noise immunity, more range, and less power for industrial applications such as power tools that operate from a 5- cell Li-ion battery. This power stage reference design uses a single Bluetooth low energy (BLE) MCU for both wireless connectivity and three-phase brushless DC (BLDC) motor trapezoidal control, designed in a single board, reducing the BOM and hence overall cost. The design demonstrates the BLE RX sensitivity of –96 dBm even when the power stage is driving motor, showing the robustness of RF performance. The design also demonstrates a small form factor power stage with overcurrent and short-circuit protection by MOSFET VDS sensing.

  • Single MCU integrating the motor control functionality as well as BLE connectivity
  • 600-W BLDC motor drive, operating from 6-V to 21.6-V, supports 27 -ARMS continuous winding current without heat sink in a small form factor of 70 mm x 45 mm
  • Offers Bluetooth 5.0 SimpleLink™ solution using a 61μA/MHz Cortex M3 MCU with additional proprietary core based sensor controller
  • Best RX sensitivity: –96 dBm (approx.) even when motor runs
  • BLE ultra-low power operation <10 uA average at 1s connection interval, 1-μA sleep current

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Schematic/Block Diagram

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Design Guide

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC2640R2F  SimpleLink™ 32-bit Arm® Cortex®-M3 Bluetooth® 5.1 Low Energy wireless MCU with 128-kB flash   Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
CSD88584Q5DC  40-V, N channel synchronous buck NexFET™ power MOSFET, SON 5 mm x 6 mm Dual-Cool™ power block, 50 A  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
DRV8323  65-V max 3-phase smart gate driver with current shunt amplifiers  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
LMT87-Q1  Automotive ±2.7°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain  Temperature sensors  Sample & Buy Not Available
TPD1E10B06  12-pF, ±5.5V, ±30-kV ESD protection diode in 0402 and SOD-523 package  Circuit protection ICs  Sample & Buy View Design Kits & Evaluation Modules
TPS709  150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC2640R2F Download Download
Download Download
Download -
Download Download
CSD88584Q5DC Download Download
DRV8323 Download Download
LMT87-Q1 Download
TPD1E10B06 Download Download
TPS709 Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1781 28 Nov 2017
Design files (6)
Title Type Size (KB) Date
PDF 1901 09 Feb 2018
ZIP 362 09 Feb 2018
ZIP 1124 09 Feb 2018
PDF 225 28 Nov 2017
PDF 298 28 Nov 2017
PDF 529 28 Nov 2017
More literature (1)
Title Type Size (KB) Date
ZIP 5347 28 Nov 2017

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