Quality Standards and Environmental Certifications
×

Contact Sales

Have Questions? Let us help!

We're passionate about innovation. Reach out and you'll hear back from an expert shortly.

Required*

This field is required

This field is required

Please enter a valid Email Address

This field is required

This field is required

This field is required

This field is required

This field is required

This field is required

Thank you for connecting with us!

One of our solution experts will be in touch with you shortly. Keep reading to learn more about our industry leading solutions.


Three Phase Sensorless Fan Drivers

A5931, A5931-3

A5931 Product Image

A5931-A5931-3 ECAD Model
Download Datasheet
Download Datasheet
Navigate

Description

Top Features

Packaging

The A5931 is a three phase sensorless BLDC fan driver IC that incorporates sinusoidal drive to minimize audible noise and vibration. 

The A5931-3 is the latest in the family with a new feature that allows user to adjust deceleration speed from Force Open Loop to Close Loop.

A flexible closed-loop speed control system is integrated into the IC. This eliminates the requirement for a microprocessor-based system and minimizes programming requirements.

The A5931 devices are available in both commercial and automotive grade.

  • 180° sinusoidal drive - Low audible noise and vibration
  • Motor position using Allegro's sensorless algorithm - Eliminates external Hall sensors
  • Closed-loop speed control
  • Speed curve configuration via EEPROM
  • Lock detection
  • Soft start
  • Standby mode
  • Shorted load protection

16-lead TSSOP with exposed thermal pad (LP package)

LP Package Documentation

 

24-contact QFN with exposed thermal pad 4 mm x 4 mm x 0.75 mm (ES package)

ES Package Documentation

× not found

Part Number Specifications and Availability

Documentation and Resources

Documentation

Filter Document Type:
All Types
All Types Guide Technical Article
Documents Found: 32
Document Type Document Name
Guide
A5931 Evaluation Board User Guide
Technical Article
Overcoming Battery Cooling Challenges to Enable Safe and Reliable Electric Two-Wheelers