A3983SLPTR-T

Overview

The A3983SLPTR-T is a bipolar stepper motor driver from Allegro Microsystems, housed in a 24-pin TSSOP-EP package. It integrates control logic and power stages for full, half, quarter, and eighth microstepping. The device supports a load voltage range of 8V to 35V and delivers an output current of 2A. Operating supply voltage spans 3V to 5.5V, with a typical operating supply current of 4mA. It functions within a junction temperature range of -20°C to 150°C.

Feature Summary

• Integrates full bridge DMOS power stage with internal control logic
• Supports multiple stepping resolutions including full, half, quarter, and eighth microstep modes
• Features built-in blanking time to minimize shoot-through current

Applications

• Bipolar stepper motor control systems
• General purpose motion control applications
• Office automation equipment

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging configuration. Confirm the 24-TSSOP-EP package includes an exposed thermal pad for heat dissipation requirements. Ensure compatibility with the required logic voltage levels between 3V and 5.5V before integration into the design.

Selection Notes

Select this component for applications requiring integrated bipolar stepper motor drive with microstepping capability. The 2A output current rating suits moderate load requirements. The wide load voltage range up to 35V provides flexibility for various motor supply rails. Consider the thermal performance of the TSSOP-EP package for high-duty cycle operations.

Part Context

This part belongs to the A3983 series of stepper motor drivers. It is designed as a complete solution combining logic and power components. The device simplifies circuit design by reducing external component count compared to discrete solutions.

FAQ

What stepping resolutions are supported?

The A3983SLPTR-T supports full, half, quarter, and eighth microstep resolutions.

What is the maximum load voltage?

The maximum load voltage (Vceo) is 35V.