25.2-V, 30-A High-speed sensorless (> 100 krpm) brushless DC motor drive reference design TIDA-010031 (ACTIVE)

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Key Document

Description

This reference design is for high-speed sensorless trapezoidal control of 6–33.6 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 costeffective 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 30A 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

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18514Q5A  40V, N ch NexFET MOSFET™, single SON5x6, 4.9mOhm  MOSFETs  Sample & Buy Not Available
DRV8320  60V Three-Phase Smart Gate Driver  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR2355  24MHz 105C ULP Microcontroller With 32 KB FRAM, 4 KB SRAM, 44 IO, 12-bit ADC, 12-bit DACs, OpAmp/PGA  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TPS709  150-mA 30-V ultra-low-Iq wide-input low-dropout (LDO) regulator with reverse current protection  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18514Q5A VSONP (DQJ)| 8 Download Download
DRV8320 Download Download
MSP430FR2355 Download Download
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TPS709 Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 9046 15 Jan 2019
Design files (6)
Title Type Size (KB) Date
ZIP 448 15 Jan 2019
ZIP 670 15 Jan 2019
PDF 852 15 Jan 2019
PDF 162 15 Jan 2019
PDF 57 15 Jan 2019
PDF 383 15 Jan 2019
Related Tools & Software

Software (1)



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