A5943GLPTR-T

Motor Drivers, Controllers Overview

The A5943GLPTR-T is a three-phase brushless DC (BLDC) motor driver manufactured by Allegro MicroSystems. It features a half-bridge output configuration with three bridges, designed for efficient BLDC control. The device operates within a supply voltage range of 6 V to 12 V and supports an output current of 3 A. It functions at a switching frequency of 400 kHz and maintains operation between -40°C and +105°C. Packaged in a 16-pin TSSOP with exposed pad, it is suitable for fan and motor applications requiring sensorless commutation.

Motor Drivers, Controllers Feature Summary

• Three-phase half-bridge output configuration for brushless DC motor control
• Sensorless commutation capability for fan and motor applications
• Integrated protection mechanisms including overcurrent and thermal shutdown

Motor Drivers, Controllers Applications

• Brushless DC (BLDC) fan drivers
• Computer cooling systems
• Appliance motor control

Motor Drivers, Controllers Procurement Notes

Verify the complete part number including the suffix to ensure correct packaging and temperature grade. Confirm that the application voltage does not exceed the 12 V maximum rating. Ensure proper PCB layout for the exposed pad to manage thermal performance given the 3 A output capability. Check humidity sensitivity levels before assembly if storage conditions were not controlled.

Motor Drivers, Controllers Selection Notes

Select this component for applications requiring a compact solution for three-phase BLDC motors. The 16-pin TSSOP package suits space-constrained designs. Consider the 400 kHz operating frequency when designing external filtering components. Verify that the load current requirements remain within the 3 A limit under all operating temperatures.

Motor Drivers, Controllers Part Context

This part belongs to the A59xx series of motor controllers from Allegro MicroSystems. It is categorized under PMIC and Motor Drivers. The device is distinct from brushed DC drivers like the A5979 or stepper drivers due to its specific three-phase architecture optimized for sensorless BLDC operation.

Motor Drivers, Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official Allegro MicroSystems resources for cross-reference information.