5V, 3-Phase, Sensorless, Sinusoidal Motor System With Variable Speed Control


Design files


This BLDC motor system implements a DRV10963, a TLC555 timer, and a generic 5V motor. The sinusoidal control scheme is suitable for small fan applications where low noise is desired. Motor voltage support is 2.1V to 5.5V, and max current is 500mA. Motor speed is controlled by the PWM input. Low quiescent current standby mode is available. The motor drive stage has integrated protection, including short-circuit, shoot-through, under-voltage, over-temperature, and locked rotor detection.

  • Sinusoidal Control Scheme
  • Integrated power FETs support 2.1 to 5.5V and 500mA
  • Motor speed is easily controlled by potentiometer
  • Requires one USB cable or external power supply to power system
  • Quick connection points allow for external control
  • Fully functional evaluation board

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.

TIDU005.PDF (1247 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDC081.ZIP (152 K)

Detailed schematic diagram for design layout and components

TIDR294.PDF (73 K)

Detailed schematic diagram for design layout and components

TIDR295.PDF (101 K)

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


Includes TI products in the design and potential alternatives.

Brushless DC (BLDC) motor drivers

DRV109635-V nominal, 1.8-A peak sensorless sinusoidal control 3-phase BLDC motor driver

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Test report TIDA-00114 Test Results Nov. 13, 2013

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