Texas Instruments (TI) has revealed the industry’s first 70-W brushless DC (BLDC) motor drivers to provide code-free, sensor less trapezoidal and field-oriented control (FOC).
The devices enable engineers to spin a BLDC motor in less than 10 minutes – eliminating months of design time for engineers designing a wide variety of industrial systems such as major and small home appliances, and medical applications such as ventilators and continuous positive airway pressure (CPAP) machines.
“The need for real-time motor control is more critical than ever, thanks to broad-reaching trends like power efficiency and automation, as well as increasing demand for quieter motors,” said Noman Akhtar, Senior Research Analyst, Omdia. “A growing number of industrial systems are transitioning from AC induction to BLDC motors, which are more power-efficient but require complex hardware and optimized software designs to deliver high performance. Meeting designers’ needs for a faster motor response while shortening the overall design cycle will be an important step forward for next-generation industrial systems.”
With integrated real-time control and up to 18 discrete components – including power metal-oxide-semiconductor field-effect transistors (MOSFETs) – the devices also speed system response time while reducing board space by as much as 70%, all while providing best-in-class acoustic performance.
The MCF8316A and MCT8316A BLDC motor drivers include a unique set of commutation control algorithms that eliminate the need to develop, maintain and qualify motor-control software, which eliminates months of design time.
The algorithms, along with a high level of integration, enable these motor drivers to manage critical functions such as motor fault detection, while implementing protection mechanisms to increase system reliability. Because these motor drivers integrate sensorless technology to determine rotor position, they eliminate the need for external Hall sensors, which reduces system cost and increases reliability.
Additionally, TI launched MCF8316A sensorless FOC motor driver intelligently extracts motor parameters, enabling designers to quickly tune a motor while delivering consistent system performance regardless of motor manufacturing variations.
The TI’s MCT8316A sensorless trapezoidal control motor driver enables designers to tune a motor using only five hardware pins, simplifying systems by eliminating the need for a microcontroller interface.