Automotive 48-V, 1-kW Motor Drive Reference Design


Design files


TIDA-00281 is a 3-phase brushless DC (BLDC) motor drive designed to operate in 48-V automotive applications. The board is designed to drive motors in the 1-kW range and can handle currents up to 30 A. The design includes analog circuits working in conjunction with a C2000 LaunchPad to spin a 3-phase BLDC motor without the need for position feedback from hall effect sensors or quadrature encoder.

  • Speed control of 3-phase BLDC motors with no position sensors needed
  • Phase voltage and current sensing scaled and filtered feedback for control of the 3-phase power
  • Operates over a wide range of voltages from the 48-V battery system
  • Reverse polarity protection on 12-V battery
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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.

TIDUAY9.PDF (6597 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


Detailed overview of design layout for component placement

TIDRIN6.ZIP (1813 K)

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


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

TIDRIN5.PDF (5447 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Design guide Automotive 1-kW 48-V BLDC Motor Drive Design Guide Oct. 26, 2015

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