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Product Detailed Parameters
- Description：IC MOTOR DRIVER 4.2V-50V 20TSSOP
- 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：Pre-Driver - Half Bridge (3)
- Interface：SPI
- Technology：Power MOSFET
- Step Resolution：-
- Applications：General Purpose
- Current - Output：-
- Voltage - Supply：4.2V ~ 50V
- Voltage - Load：-
- Operating Temperature：-25°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The A4963GLPTR-T is a three-phase sensorless brushless DC motor controller and driver manufactured by Allegro Microsystems. It integrates power MOSFETs and an SPI interface for control within a 20-lead TSSOP package with an exposed pad. The device supports a supply voltage range of 4.2V to 50V and operates at temperatures from -25°C to 150°C. It features three half-bridge pre-drivers for commutation and direction management, designed for general-purpose applications requiring efficient motor control without position sensors.
Feature Summary
- Integrates three half-bridge pre-drivers for driving external power MOSFETs in a three-phase configuration.
- Includes built-in commutation logic and direction management capabilities for sensorless BLDC operation.
- Utilizes an SPI digital interface for precise control and configuration of motor parameters.
- Designed with thermal performance enhancements via an exposed pad on the TSSOP-EP package.
Applications
- Sensorless brushless DC motor control in consumer electronics
- Fan and pump drives in home appliances
- General-purpose motion control systems
Procurement Notes
Verify the specific suffix GLPTR-T against the manufacturer's current datasheet to confirm pinout and electrical specifications match your design requirements. Ensure the PCB layout accommodates the 20-TSSOP-EP package dimensions and provides adequate thermal relief for the exposed pad to maintain optimal operating temperature limits. Confirm that the SPI interface signals are compatible with the host microcontroller logic levels.
Selection Notes
Select this component when a compact solution for sensorless BLDC motors is required with integrated pre-driver stages. The wide supply voltage range up to 50V allows flexibility in system power design. Consider the high operating temperature rating of 150°C for environments where thermal dissipation is challenging. The SPI interface offers robust communication compared to analog alternatives, suitable for complex control algorithms.
Part Context
This part belongs to the A4963 series of motor controllers from Allegro Microsystems, specifically tailored for three-phase brushless DC applications. It differs from stepper drivers like the A4985 or other BLDC controllers such as the A4960 by its specific integration of three half-bridge pre-drivers and sensorless commutation logic. The TSSOP-EP packaging distinguishes it from QFN or LQFP variants in the broader product line.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing pinouts and electrical characteristics with alternative Allegro BLDC controllers such as the A4960KJPTR-A-T, ensuring functional equivalence in sensorless operation and voltage ratings.
