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Product Detailed Parameters
- Description：IC MOTOR DRIVER 16TSSOP
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR)
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：16-eTSSOP-EP
- Grade：-
- Qualification：-
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Overview
The A4944GLPTR-T is a brushless DC motor driver IC from Allegro MicroSystems, designed for fan and pump applications. It features a 16-pin eTSSOP package with an exposed pad for thermal management. The device supports Hall sensor feedback and operates within a supply voltage range of 4.5 V to 20 V. It integrates a three-phase bridge capable of delivering continuous current up to 1.5 A per phase. Key electrical characteristics include a maximum operating temperature of 150 °C and a minimum operating temperature of -40 °C.
Feature Summary
- Integrates a three-phase power bridge with integrated high-side and low-side MOSFETs for efficient BLDC motor control.
- Supports Hall sensor input for commutation, enabling reliable operation in fan and pump applications.
- Includes built-in protection mechanisms such as over-current protection, under-voltage lockout, and thermal shutdown.
Applications
- Computer cooling fans
- Server and storage drive cooling systems
- Household appliance blowers
Procurement Notes
Verify the specific suffix (GLPTR-T) against the manufacturer's latest datasheet to confirm pinout and functional specifications. Ensure compatibility with your system's voltage levels and thermal requirements. Check for moisture sensitivity level (MSL) ratings if reflow soldering is required. Confirm that the 16-eTSSOP-EP package dimensions fit your PCB layout constraints.
Selection Notes
Select this component when designing compact BLDC motor drives requiring integrated power switching and Hall sensor interface. It is suitable for applications needing moderate current handling up to 1.5 A. Consider the exposed pad for thermal dissipation if operating near maximum current limits. Evaluate alternative packages if space or thermal constraints differ significantly.
Part Context
This part belongs to Allegro MicroSystems' portfolio of integrated motor drivers aimed at simplifying BLDC motor control designs. It consolidates gate drivers, power MOSFETs, and control logic into a single small-footprint package. This integration reduces component count and board space compared to discrete solutions.
Replacement Considerations
Consult official Allegro MicroSystems documentation for direct cross-references. Verify pin-to-pin compatibility and electrical parameters before substituting with other BLDC drivers from different manufacturers.
