A4919GLPTR-T

Overview

The A4919GLPTR-T is a three-phase MOSFET driver manufactured by Allegro MicroSystems, designed for brushless DC motor applications. It integrates an internal regulator and operates within a supply voltage range of 5.5 V to 50 V. The device provides an output current capability of 150 mA per phase and maintains a typical operating supply current of 10 mA. It supports a wide operating temperature range from -40 °C to +105 °C. The component is housed in a 28-pin TSSOP surface-mount package with exposed pad.

Feature Summary

• Integrates a high-side and low-side gate driver configuration for three-phase BLDC motors
• Includes an internal linear regulator to simplify power supply requirements
• Supports PWM speed control and direction management via digital inputs

Applications

• Brushless DC (BLDC) motor drives
• Fan and pump control systems
• Automotive cooling fans

Procurement Notes

Verify the specific suffix 'GLPTR-5-T' against official datasheets to confirm pinout and thermal characteristics. Ensure compatibility with the target PCB footprint for the 28-TSSOP package. Confirm moisture sensitivity level handling during assembly to prevent damage.

Selection Notes

Select this component for applications requiring integrated three-phase driving without external logic. Consider the 150 mA output limit when sizing for higher current loads. Verify that the 5.5 V minimum supply voltage aligns with the system's power architecture.

Part Context

This part belongs to the A4919 series of three-phase MOSFET drivers. It is distinct from stepper motor drivers like the A4985 or other BLDC controllers such as the A4963. The device focuses on simplified integration for fan and pump applications rather than complex motion control.

Replacement Considerations

Direct substitutes include the A4919GETTR-T variant which utilizes a 28-QFN package instead of TSSOP. Other family members may offer different pinouts or thermal profiles.