Allegro MicroSystems

A4945GLTR-T  

Motor Drivers, Controllers

A4945GLTR-T Description

The A4945GLTR-T is a high-performance fan motor driver IC designed for brushless DC (BLDC) motors. Manufactured by Allegro MicroSystems, this device is specifically tailored for applications requiring efficient fan control. The A4945GLTR-T features a half-bridge output configuration with a maximum output current of 1.8A, making it suitable for driving multiphase stepper motors and BLDC motors. It operates within a supply voltage range of 4V to 18V, providing flexibility in power supply options.

The A4945GLTR-T is housed in a SOT89-3 package, which is both compact and thermally efficient, making it ideal for space-constrained applications. The device is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards. The moisture sensitivity level (MSL) is rated at 1 (unlimited), which means it can be safely stored and handled without additional precautions.

A4945GLTR-T Features

• Output Configuration: Half Bridge (3) - This configuration allows for efficient control of BLDC motors, providing smooth and reliable operation.
• Current - Output: 1.8A - The high output current capability ensures robust performance, even under demanding conditions.
• Voltage - Supply: 4V to 18V - The wide supply voltage range provides flexibility in power supply options, making it suitable for various applications.
• Technology: Power MOSFET - The use of Power MOSFET technology ensures high efficiency and low power loss.
• Interface: Analog - The analog interface simplifies the control and integration of the driver into existing systems.
• Package: Tape & Reel (TR) - The SOT89-3 package is compact and thermally efficient, making it ideal for space-constrained applications.
• Compliance: REACH Unaffected and ROHS3 Compliant - These certifications ensure that the A4945GLTR-T meets the highest environmental and safety standards.
• Moisture Sensitivity Level (MSL): 1 (Unlimited) - This rating ensures the device can be safely stored and handled without additional precautions.

A4945GLTR-T Applications

The A4945GLTR-T is designed for a variety of applications where efficient fan control is essential. Its primary application is in fan motor drivers, particularly for brushless DC (BLDC) motors. This makes it ideal for use in:

• Cooling Systems: Efficiently driving fans in computer cooling systems, industrial HVAC systems, and other applications requiring precise temperature control.
• Consumer Electronics: Driving fans in consumer electronics such as gaming consoles, routers, and other devices that require reliable cooling solutions.
• Industrial Equipment: Providing robust and efficient fan control in industrial equipment where reliability and performance are critical.

Conclusion of A4945GLTR-T

The A4945GLTR-T from Allegro MicroSystems is a versatile and high-performance fan motor driver IC designed for brushless DC (BLDC) motors. Its half-bridge output configuration, high output current, and wide supply voltage range make it suitable for a variety of applications requiring efficient fan control. The compact SOT89-3 package, combined with its REACH unaffected and RoHS3 compliant status, ensures it meets the highest environmental and safety standards. The A4945GLTR-T is an excellent choice for applications in cooling systems, consumer electronics, and industrial equipment, where reliability and performance are paramount.

A4945GLTR-T Documents

Download datasheets and manufacturer documentation for A4945GLTR-T