TIDA-010031

25.2-V, 30-A High-speed sensorless (> 100 krpm) brushless DC motor drive reference design

Design files

TIDA-010031

Design files

Overview

This reference design is for high-speed sensorless trapezoidal control of 6 to 33.6-V DC-fed Brushless DC (BLDC) motors up to 900 W and motor speeds of up to 180,000 rpm (verified up to 100,000 rpm). A cost-effective smart microcontroller with a hardware detection of the commutation points accelerates the sensorless trapezoidal control using speed-adaptive Back EMF (BEMF) detection. The BLDC power stage is compact, optimized for efficiency and fully protected against short circuit, motor stall and overtemperature due to the smart three-phase gate driver.

Features

High-speed, sensorless trapezoidal control up to 3-kHz motor electrical frequency
Speed-adaptive dual-algorithm for BEMF detection
Operates at voltage ranging from 6 V to 33.6 V delivering up to 900-W output power, output current up to 30-A RMS
Standby current consumption as low as 22 µA
Optimized FET switching for best efficiency and EMI
Cycle-by-cycle overcurrent, motor stall and short-circuit latch protection by MOSFET VDS monitoring

Industrial

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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.

Design guide — TIDA-010031

TIDUEJ4.PDF (9046 K)

Reference design overview and verified performance test data

Schematic — TIDA-010031

TIDRYN0.PDF (383 K)

Detailed schematic diagram for design layout and components

Bill of materials (BOM) — TIDA-010031

TIDRYN1.PDF (57 K)

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

Assembly drawing — TIDA-010031

TIDRYN2.PDF (162 K)

Detailed overview of design layout for component placement

CAD/CAE symbol — TIDA-010031

TIDRYN4.ZIP (670 K)

Files used for 3D models or 2D drawings of IC components

Gerber file — TIDA-010031

TIDCF79.ZIP (448 K)

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

PCB layout — TIDA-010031

TIDRYN3.PDF (852 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

BLDC drivers

DRV8320 — 65-V max 3-phase smart gate driver

Data sheet: PDF

Linear & low-dropout (LDO) regulators

TPS709 — 150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable

Data sheet: PDF | HTML

MOSFETs

CSD18514Q5A — 40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 4.9 mOhm

Data sheet: PDF | HTML

MSP430 microcontrollers

MSP430FR2355 — 24-MHz 105-C integrated analog microcontroller with 32-KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit AD

Data sheet: PDF

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Software

Firmware

TIDCF80 — TIDA-010031 Firmware

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TIDCF80 — TIDA-010031 Firmware

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Latest version

Version: 01.00.00.00

Release date: 14 Jan 2019

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TIDA-010031 Firmware (zip) — 1726 K

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Technical documentation

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	Type	Title		Date
*	Design guide	25.2-V, 30-A High-speed sensorless (> 100 krpm) brushless DC motor drive		Jan. 15, 2019

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