Brushless DC Drivers

Fully Integrated 12V Sensorless FOC Controller for Ultra-Quiet, High-Efficiency Fan Applications

A89337

The A89337 is a high-performance, 3-phase sensorless BLDC motor controller designed to deliver maximum efficiency and acoustic optimization for 12V server and home appliance fans. By integrating a proprietary Field-Oriented Control (FOC) algorithm and a "code-free" configuration environment, it enables engineers to achieve precision closed-loop speed control and ultra-quiet operation without the complexity of software development or external microprocessors.

Product Details

Top Features

  • Code-Free FOC: Fully integrated sensorless Field-Oriented Control—no firmware development required.
  • Failsafe Power Fan: Automatically triggers 100% duty cycle on comms loss for continuous thermal protection.
  • Real-Time Telemetry: Integrated current feedback for precise system-level power and health monitoring.
  • Advanced PLB Safety: Uses motor back-EMF for controlled deceleration during power loss, reducing BOM costs.
  • Least external components to drive motor efficiently and quietly

Part Number Specifications and Availability

Design Tools