A3931KJPTR-T

Overview

The A3931KJPTR-T is a three-phase brushless DC motor controller and driver manufactured by Allegro MicroSystems. It operates within a load voltage range of 5.5 V to 50 V and features an output current capability of 15 mA with a working supply current of 11 mA. The device supports a 5 V output voltage and functions across a temperature range of -40°C to +150°C. Packaged in a 48-lead LQFP with exposed pad, it is designed for surface mount installation.

Feature Summary

• Integrates pre-driver half-bridge configuration for three-phase BLDC applications
• Supports parallel interface communication for control signals
• Utilizes power MOSFET technology for efficient switching

Applications

• Brushless DC motor control systems
• Automotive motion control applications
• Industrial motor drive circuits

Procurement Notes

Verify the specific suffix KJPTR-T against official Allegro MicroSystems documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating temperatures and voltage ranges before integration. Confirm moisture sensitivity levels and handling requirements during procurement.

Selection Notes

Select this component for designs requiring integrated three-phase BLDC control with high-temperature operation up to 150°C. Consider the 48-LQFP package constraints and 15 mA output current limits relative to the target motor load. Verify interface compatibility with the host microcontroller or system controller.

Part Context

This part belongs to the A3930-1 series of motor controllers from Allegro MicroSystems. It serves as a specialized solution for driving three-phase brushless DC motors in automotive and industrial environments where wide voltage tolerance and thermal resilience are critical design parameters.

Replacement Considerations

A3930KJPTR-T is a related variant within the same series offering similar functionality.