While most BLDC FOC controllers require software developers to code the algorithm into a microprocessor, QuietMotion devices integrate Allegro's innovative FOC algorithms. These advanced algorithms enable smooth and quiet motion while eliminating the need to write software. This significantly reduces R&D costs and shortens time to market. With only five external components, these devices also minimize bill of materials (BOM) costs, improve reliability, and reduce design complexity. The result is a quiet, easy-to-deploy, and efficient solution.
"This is the future of motor controllers," says Vijay Mangtani, Vice President of Allegro's Power IC business unit. "Our QuietMotion devices are incredibly efficient and easy to use. The user interface and flexible development boards allow customers to effortlessly tune and evaluate various motors, reduce development time, and implement product designs with very few external components."
The first member of Allegro's QuietMotion family is the AMT49406, an ideal solution for applications requiring high efficiency and low noise levels, such as ceiling and pole fans, humidifiers, dehumidifiers, air purifiers, and exhaust fans. With its patented embedded windowless sinusoidal algorithm and soft-start algorithms, the AMT49406 delivers reliable, industry-leading audible noise performance.
The A89301 is also part of the QuietMotion family. This device offers ultra-quiet operation, along with added flexibility and programmable features for premium appliances, including high-end appliance fans, high-end ceiling fans, and air purifiers. The A89301 is specifically designed for systems with low-speed requirements.
“We are passionate about innovation,” explained Mangtani. “We are continuously working to develop smart solutions that give our customers a competitive edge, and we are excited to launch this new QuietMotion family to the market.”
The AMT49406 and A89301 have an input voltage range of 5.5 to 50 V and an operating range of -40°C to 105°C. They are available in a 24-pin 4 mm x 4 mm QFN package with an exposed thermal pad (suffix ES) and a 24-pin TSSOP package with an exposed thermal pad (suffix LP). These packages are lead-free (Pb) with a 100% matte tin-lead coating.
Click here to download a copy of the datasheets for the AMT49406 and A89301 sensorless, non-coding BLDC FOC drivers.
