Integrated 30-W Sensorless BLDC Motor Drive Retrofit Reference Design with 90- to 265-V AC Input


Design files


This reference design drives the low-voltage brushless DC (BLDC) motor with universal AC power supply input. The design has an onboard, reinforced isolated AC/DC switch power supply to convert the AC main input to isolated low-voltage DC output. It also combines a fully-integrated and well-protected single-chip, sensorless, sinusoidal brushless motor controller for low-audible noise operation. The desin is optimized with very small form factor and high efficiency which could be easily fit into motor.

  • Reinforced isolated flyback AC/DC power supply providing 24-V/36-W output
  • Very low-standby power below 50 mW and high-efficiency AC/DC power supply giving a full load efficiency of 86%
  • Highly integrated and protected single-chip, sinusoidal brushless motor controller reduces external parts count eliminating the programming overhead of motor control
  • Small PCB form factor of Ø64 mm
  • Fully protected system with short circuit, over current, blocked rotor protection
Output voltage options TIDA-01417.1
Vin (Min) (V) 90
Vin (Max) (V) 265
Vout (Nom) (V) 24
Iout (Max) (A) 1.5
Output Power (W) 36
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- Quasi Resonant
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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.

TIDUD01.PDF (9205 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


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


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

TIDRQL5.PDF (1056 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Flyback controllers

UCC28740Constant-Voltage, Constant-Current (CVCC) Flyback controller with Secondary Side Regulation (SSR)

Data sheet: PDF | HTML
Integrated control BLDC drivers

DRV1098324-V nominal, 3-A peak sensorless sinusoidal control 3-phase BLDC motor driver

Data sheet: PDF | HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Integrated 30W Sensorless BLDC Motor Drive Retrofit Ref Design w/ 90 to 265VAC Apr. 07, 2017
Technical article Brush up on the latest motor design considerations for appliances Oct. 26, 2017

Related design resources

Hardware development

DRV10983EVM DRV10983 Three-Phase Brushless Motor Driver Evaluation Module

Reference designs

TIDA-00447 24V, 100W/30W Dual Sensorless Brushless DC Motor Drive Reference Design TIDA-00652 90-265VAC, 91% Efficiency, >0.94 PF Buck-PFC plus 24V, 30W Brushless DC Motor Drive Reference Design TIDA-00702 60W, 24V High Efficiency Industrial Power Supply with Precision Voltage, Current and Power Limit

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