Quality Standards and Environmental Certifications
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12V and 48V Sensorless Field-Oriented Control BLDC Motor Controller

A89333, A89333-1

Allegro EC 28-Pin Package

From whisper-quiet operation to robust 12V and 48V server fan control, the A89333 family of sensorless Field-oriented control (FOC) BLDC motor controllers provides a full motor control solution – in as small as 4 mm x 4mm. Its integrated features, programmability, and adaptable design ensure seamless performance across a wide range of applications, simplifying development and accelerating time to market.

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Unleash the full potential of your BLDC motors with Allegro's A89333 and A89333-1, a revolutionary 48V and 12V sensorless, code-free FOC controller. This highly integrated IC supports up to 75V (A89333 only) and 40V (A89333-1 only) with an integrated buck regulator for exceptional efficiency. Both devices feature sophisticated algorithms for optimized motor startup, whisper-quiet performance, and minimal acoustic noise. Whether you're designing 48V or 12V server fans, home appliances, or telecom equipment, the A89333 and A89333-1 simplify development and delivers unparalleled motor control.

Simplify your design process with a fully integrated Field Oriented Control (FOC) algorithm, eliminating complex programming, maximize power savings in demanding applications with the integrated 75V-rated buck regulator and seamlessly switch between speed, torque, and power mode operation providing versatile control that will help to meet your application's specific needs.

  • 75 V maximum rating with integrated buck regulator for high efficiency
  • Fully integrated single-shunt sensorless FOC controller (code-free)
  • Speed, torque, and power mode operation
  • Slew-rate control for electromagnetic-interference (EMI) mitigation
  • Ultra-quiet low-speed operation

28-Contact QFN with exposed pad (EC package)

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Documentation

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Guide
A89333 Evaluation Board User Manual