Allegro MicroSystems

A4934GLPTR-T

A4934GLPTR-T Description

The A4934GLPTR-T is a specialized integrated circuit (IC) designed for motor driving applications, particularly suited for brushless DC (BLDC) motors. Manufactured by Allegro MicroSystems, this IC is part of the Power Management (PMIC) category and is housed in a 16TSSOP package. The A4934GLPTR-T operates within a supply voltage range of 8V to 16V and can handle a load voltage within the same range. It features a half-bridge output configuration with a maximum output current of 500mA. The device is designed to interface with PWM signals, making it ideal for precise control of motor speed and direction.

A4934GLPTR-T Features

• Output Configuration: The A4934GLPTR-T features a half-bridge (3) output configuration, which allows for efficient control of BLDC motors. This configuration ensures high efficiency and reduced power loss, making it suitable for applications requiring precise motor control.
• Current Capability: With a maximum output current of 500mA, the A4934GLPTR-T can drive small to medium-sized BLDC motors effectively. This current capacity is sufficient for fan motor drivers and similar applications.
• Voltage Range: The IC operates within a supply voltage range of 8V to 16V, which is also applicable for the load voltage. This wide voltage range provides flexibility in power supply options and ensures compatibility with various motor types.
• Interface: The A4934GLPTR-T supports PWM interface, enabling precise control of motor speed and direction. PWM control allows for smooth and efficient motor operation, reducing power consumption and heat generation.
• Technology: Utilizing Power MOSFET technology, the A4934GLPTR-T offers high efficiency and low power loss. This technology ensures reliable performance and long-term durability.
• Compliance: The A4934GLPTR-T is REACH unaffected and ROHS3 compliant, ensuring it meets stringent environmental and safety standards. This compliance makes it suitable for use in various industries, including automotive and consumer electronics.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the A4934GLPTR-T is highly resistant to moisture, making it suitable for applications in humid environments.
• Mounting Type: The surface mount packaging of the A4934GLPTR-T allows for easy integration into compact and space-constrained designs. The Tape & Reel (TR) packaging format facilitates automated assembly processes.

A4934GLPTR-T Applications

The A4934GLPTR-T is specifically designed for fan motor driver applications, making it ideal for use in:

• Consumer Electronics: In devices such as desktop computers, laptops, and other electronics that require efficient cooling solutions.
• Automotive: For cooling fans in vehicles, ensuring reliable operation in varying environmental conditions.
• Industrial: In HVAC systems and other industrial applications where precise motor control is essential for maintaining optimal operating conditions.

Conclusion of A4934GLPTR-T

The A4934GLPTR-T is a robust and efficient motor driver IC designed for BLDC motors. Its half-bridge output configuration, wide voltage range, and PWM interface make it highly versatile and suitable for a variety of applications. The device's compliance with environmental and safety standards, along with its moisture resistance and surface mount packaging, ensures it is reliable and easy to integrate into various designs. While the A4934GLPTR-T is currently marked as obsolete, its unique features and performance benefits make it a valuable component for existing systems and legacy applications.