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This is a pre-release product, engineering samples coming soon.

48V Three-phase, Sensorless and Code-free FOC Driver

A89333

Allegro EC 28-Pin Package

The A89333 is a 3-phase, sensorless and brushless DC (BLDC) motor controller. A field-oriented control (FOC) algorithm is fully integrated to achieve the best efficiency and acoustic noise performance. The device also optimizes the motor startup performance in stationary condition, as well as forward and reverse windmill condition.

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Description

Top Features

Typical Applications

Packaging

The A89333 provides programmable profiles and includes close-loop controls for constant power and speed operations. These features eliminate the need for a microprocessor-based system and minimize programming requirements. A simple I2C interface is provided for setting motor related parameters, control related parameters and startup profiles which are stored in non-volatile memory (NVM). The I2C interface can also be used to control the motor directly and provide speed and status feedback. Password protection is available for stored NVM data. The A89333 can support operating VBB up to 60 V and can provide protection up to 75 V (ABS MAX).

  • High voltage rating: With a maximum rating of 75V and an integrated buck regulator, the A89333 is capable of high-efficiency operation, optimal for systems that experience voltage spikes or need to operate at higher voltages.
  • High efficiency: Integrated buck regulator and FOC algorithm are suitable for high efficiency operation with minimum heat dissipation and low acoustic noise at higher power operation. 
  • Code-free operation: The A89333 is designed to work without the need for an external MCU, simplifying the design process and reducing the time to market.
  • EMI mitigation: With slew rate control, the A89333 helps to reduce EMI for application crucial sensitive to EMI.
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28-Contact QFN with exposed pad (EC package)

EC Packaging Documentation

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Part Number Specifications and Availability