No need to code FOC, non inductive BLDC series fan driver
Time:2022-11-13
Views:1569
For applications such as vertical and suspended fans, humidifiers, dehumidifiers, air purifiers and exhaust fans, ideal solutions with higher efficiency and lower noise are required. The QuietMotion product series launched by Allegro integrates the brushless DC (BLDC) motor control IC with the field oriented control algorithm (FOC) (no need for customers to write code), which can help designers shorten the development and design cycle, and achieve reliable, efficient and low audible noise control effects at the same time.
QuietMotion Series
Low noise, easy to achieve, high efficiency
AMT49406 Typical Applications
AMT49406 Main Features
Allegro QuietMotion Product Family
Short circuit protection (OCP)
QuietMotion Series
Low noise, easy to achieve, high efficiency
At present, most FOC BLDC drivers require software developers to write algorithms to control motors through microprocessors. However, QuietMotion devices integrate Allegro‘s proprietary and innovative FOC algorithms, which can achieve stable and quiet operation without writing software, greatly reducing research and development costs and shortening the time to market. At the same time, because the system design only requires five external components, it can also minimize the cost of the bill of materials (BOM), improve reliability, and reduce the complexity of the design.
AMT49406 Typical Applications
The goal pursued by QuietMotion series is also the future development direction of motor drive. This series of products is very efficient and convenient for system integration. Its flexible user interface and development board can enable customers to easily adjust and evaluate various motors, shorten development time, and use a small number of external components to complete product design.
AMT49406 Main Features
Allegro QuietMotion Product Family
AMT49406 is ideal for applications requiring high efficiency and low noise. It uses embedded proprietary windowless sine algorithm and soft start algorithm to provide reliable, industry-leading low noise performance. AMT49406 has the following main characteristics:
Codeless Sensorless Directional Field Control (FOC)
Proprietary anti reverse fast start technology
Soft start and soft close (SOSO) for quiet operation
Analog/PWM/clock mode speed control
Closed loop speed control
Configurable current limit
Lock detection
Short circuit protection (OCP)
The rated input voltage of brake and direction input AMT49406 is 5.5V~50V, and the operating temperature range is - 40 ℃~105 ℃. It adopts 24 contacts, 4mm × 4mm QFN (suffix ES) or 24 lead, TSSOP package (suffix LP), with exposed heat dissipation pads, all packages are lead-free products, and the pin frame is 100% matte tin plating.
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