Sensorless, brushless DC motor driver spins motors instantly

The DRV10963 from Texas Instruments Incorporated is a 5-V, 3-phase sensorless BLDC motor driver that simplifies layout and reduces board space, allowing designers to create smaller, sleeker, more innovative designs. It includes integrated commutation logic, which enables instant motor spin with no code development, while its 180-degree pure sinusoidal outputs provide an efficient and quiet drive.

Low operating range of 5.5 to 2.1 V, low RDSON of less than 1.5 ohm and ultra-low sleep currents extend battery life. It provides the lowest quiescent current to further extend battery life – 15 uA compared to 30 uA for the closest competitor. Integrated commutation logic eliminates code development, while advanced on-chip protection reduces design complexity and improves system reliability. This cuts development time from months to minutes.


Evaluation module

The DRV10963 is a single-chip solution that slashes board space, and integrated power MOSFETs simplify layout. The DRV10963EVM evaluation module (EVM) is a cost-effective, sensorless solution for running a 3-phase BLDC motor. The EVM includes a TLC555 low-power timer configured to supply pulse width modulation (PWM), and a potentiometer to adjust the speed of the motor.

The DRV10963 is available now in a thermally efficient, 10-pin 3×3 mm USON package with an exposed thermal pad for a suggested retail price of US$0.49 in 1,000 unit quantities.

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