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Motor driver quietens noise in fan and small pump applications

15th October 2014


Texas Instruments (TI) has introduced the industry’s first 24-V, sinusoidal, sensorless, brushless DC (BLDC) motor driver. 

The DRV10983 gives customers the ability to quickly tune their motors for reliable start-up and optimal performance using a configurable, 3-A driver with integrated control logic.

Utilising 180-degree, sinusoidal, sensorless technology, the DRV10983 is up to 75% quieter than competing solutions for applications like cooling fans, ceiling fans, blowers and small appliances.

Key features and benefits of the DRV10983:

* Ultra-quiet operation: 180-degree pure sinusoidal, sensorless operation, coupled with advanced start-up algorithms, enables up to 75% quieter operation than the competition, with no annoying clicks or pops at start-up.  Pure tone harmonics, a significant noise adder in fan applications, are reduced by as much as 25dBA;

* Code-free configurability: Tune a wide range of motors for optimal performance and reliable start-up through simple register settings without the need for complex microcontroller coding or motor knowledge; 

* Full suite of protection: Advanced on-chip protection, including anti-voltage surge (AVS) over-voltage, over-current, over-temperature, shoot-through, under-voltage lock-out and advanced five-stage rotor lock protection, reduces design complexity and increases system reliability;  

* Fully integrated solution: Single-chip solution with integrated power FETs, sensorless control logic and optional 100-mA, 3.3- or 5-V step-down converter reduce board space, system cost and development time.







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