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Product Detailed Parameters
- Description：IC MOTOR DRIVER 5.5V-50V 32QFP
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Controller - Commutation, Direction Management
- Output Configuration：-
- Interface：SPI
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：5.5V ~ 50V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-LQFP Exposed Pad
- Supplier Device Package：32-QFP (7x7)
- Grade：Automotive
- Qualification：-
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Overview
The A4964KJPTR-T is a three-phase sensorless brushless DC motor controller and FET driver from Allegro MicroSystems. It operates within a load voltage range of 5.5 V to 50 V and features a QFN-32 package. The device provides three outputs for driving external power FETs, with gate drive voltages of 8 V or 11 V. It supports sinusoidal drive with soft start capabilities and includes integrated sensorless start-up and commutation logic.
Feature Summary
- Three-phase sensorless BLDC motor control with integrated FET driver
- Sinusoidal drive architecture with soft start functionality
- Sensorless start-up and commutation management
Applications
- Three-phase brushless DC motor systems
- Fan and pump control applications
- Industrial automation drives
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the QFN-32 package dimensions against your PCB footprint requirements. Ensure the design supports the 5.5 V to 50 V operating range. Check moisture sensitivity levels for proper storage and reflow soldering profiles.
Selection Notes
Select this component for applications requiring sensorless control of three-phase BLDC motors. It is suitable for designs needing sinusoidal drive characteristics to reduce noise and vibration. Consider the 50 V maximum load voltage rating for system compatibility. Evaluate the QFN-32 package for thermal and spatial constraints in the target enclosure.
Part Context
This part belongs to the A4964 series of motor controllers. It is designed as an integrated solution for driving three-phase loads without position sensors. The device combines control logic with high-side and low-side gate drivers to simplify the power stage design.
Replacement Considerations
Consult official Allegro MicroSystems documentation for verified cross-reference part numbers. Ensure any substitute maintains the same three-phase output configuration and voltage ratings.
