A4959GLPTR-T

Overview

The Allegro MicroSystems A4959GLPTR-T is a high-current integrated DC motor driver designed for pulse-width-modulated (PWM) control applications. It features a full-bridge architecture suitable for driving brushed DC motors in demanding environments. The device operates within a supply voltage range of 7 V to 50 V and supports an output current of 1.5 A. It functions reliably across an extended temperature range from -40°C to +105°C, with a quiescent current of 4 mA. The component is housed in a TSSOP-28 surface-mount package, offering compact integration for motion control systems requiring robust power management and precise motor regulation.

Feature Summary

• Full-bridge integrated circuit architecture optimized for PWM-controlled brushed DC motor applications
• High current capability supporting up to 1.5 A output for demanding load requirements
• Extended operational temperature range ensuring reliability in harsh industrial environments
• Low quiescent current consumption for efficient power management in battery-operated systems

Applications

• Industrial automation and robotics motor control
• Automotive systems including wipers, pumps, and actuators
• Home appliance brush DC motor drives
• Power tool motor regulation

Procurement Notes

Verify the specific suffix 'GLPTR-T' against official Allegro MicroSystems documentation to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint, as the datasheet indicates a TSSOP-28 package. Cross-reference the manufacturer part number directly with authorized distributors to avoid counterfeit components. Confirm that the operating voltage and current ratings align with your system design before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring a single-chip solution for high-current brushed DC motor control. It is appropriate for applications needing wide input voltage tolerance and thermal stability. Consider the TSSOP-28 package constraints for board space. Evaluate the 1.5 A continuous current rating against peak load demands. This driver is suitable for replacing discrete MOSFET bridges where size and efficiency are critical factors in the overall system design.

Part Context

The A4959GLPTR-T belongs to Allegro MicroSystems' family of high-current integrated DC motor drivers. It complements other devices like the A4979 series by providing specialized solutions for brushed motor applications. The product line focuses on simplifying motor drive designs through integrated protection features and compact packaging. This specific part number represents the tape-and-reel version of the A4959 device, facilitating automated assembly processes.

Replacement Considerations

Direct substitutes may include other Allegro MicroSystems brushed DC motor drivers within the same current class. Verify pin-to-pin compatibility and electrical parameters such as supply voltage and output current. Consult the manufacturer's cross-reference guide for validated replacements. Ensure that any alternative component meets the same thermal and packaging requirements for seamless integration.