Software
Firmware
TIDA-010031
25.2-V, 30-A High-speed sensorless (> 100 krpm) brushless DC motor drive reference design
TIDA-010031
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
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.
TIDUEJ4.PDF (9046 K)
Reference design overview and verified performance test data
TIDRYN0.PDF (383 K)
Detailed schematic diagram for design layout and components
TIDRYN1.PDF (57 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRYN2.PDF (162 K)
Detailed overview of design layout for component placement
TIDRYN4.ZIP (670 K)
Files used for 3D models or 2D drawings of IC components
TIDCF79.ZIP (448 K)
Design file that contains information on physical board layer of design PCB
TIDRYN3.PDF (852 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
MOSFETs
CSD18514Q5A — 40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 4.9 mOhm
Data sheet: PDF | HTMLMSP430 microcontrollers
MSP430FR2355 — 24-MHz 105-C integrated analog microcontroller with 32-KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit AD
Data sheet: PDFStart development
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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