Please use the form below to contact us with regards any questions you may have. We will endeavour to respond to you as quickly as we can. Please continue to browse the site for any other information in the meantime.
Will will respond as soon as we can. Feel free to browse the rest of this site in the meantime for any further information you may require. Here is a link to our main products page
The AMT49406 is a 3-phase, sensorless, brushless DC (BLDC) motor driver (gate driver) which can operate from 5.5 to 50 V—Allegro’s first QuietMotion solution. The AMT49406 is ideal for ceiling fans, pedestal fans, bathroom exhaust fans and home appliance fans and pumps.
A field-oriented control (FOC) algorithm is fully integrated to achieve the best efficiency and acoustic noise performance. The device optimizes the motor startup performance in a stationary condition, a windmill condition, and even in a reverse windmill condition.
Motor speed is controlled through analog, PWM, or CLOCK input. Closed-loop speed control is optional, and RPM-to-clock frequency ratio is programmable.
A simple I2C interface is provided for setting motor-rated voltage, rated current, rated speed, resistance, and startup profiles.
The AMT49406 is available in a 24-contact 4 mm × 4 mm QFN with exposed thermal pad (suffix ES) and a 24-lead TSSOP with exposed thermal pad (suffix LP). These packages are lead (Pb) free, with 100% matte-tin leadframe plating.
| Document Type | Document Name |
|---|---|
| Selection Guide | Allegro Product Selection Guide |
