A3980KLPTR-T

Overview

The A3980KLPTR-T is a bipolar stepper motor driver from Allegro Microsystems, designed for automotive applications with AEC-Q100 qualification. It integrates control logic and power stages in a 28-pin TSSOP-EP package. The device supports supply voltages from 3V to 5.5V and load voltages up to 50V. It offers selectable microstepping resolutions of full, half, eighth, and sixteenth step modes. Operating junction temperatures range from -40°C to 150°C.

Feature Summary

• Integrates full control logic and DMOS power output stages for simplified design
• Supports multiple microstepping resolutions including full, half, eighth, and sixteenth steps
• Includes built-in current regulation and thermal shutdown protection mechanisms

Applications

• Automotive seat position adjustment actuators
• Vehicle door lock and latch mechanisms
• HVAC system damper control motors

Procurement Notes

Verify the specific suffix KLPTR-T against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure compatibility with the target application's voltage requirements and thermal management needs before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring integrated bipolar stepper control with automotive reliability standards. Consider the 28-TSSOP-EP package for its thermal performance and space efficiency. Verify that the required microstepping resolution aligns with the system's precision specifications.

Part Context

This part belongs to the A3980 family of bipolar stepper motor drivers. It is specifically engineered for robust operation in harsh environments, meeting stringent automotive quality requirements. The integration of logic and power stages reduces external component count compared to discrete solutions.

Replacement Considerations

The A3981KLPTR-T is listed as an alternative option within the same product family.