A3964SLBTR-T

Overview

The A3964SLBTR-T is a bipolar stepper motor driver manufactured by Allegro MicroSystems, housed in a 20-SOIC surface-mount package. It integrates control logic and power stages for full-bridge operation with four half-bridges. The device supports parallel interfaces and operates within a supply voltage range of 4.75V to 5.25V, handling load voltages from 5V to 30V. It delivers an output current of 800mA and functions across a junction temperature range of -20°C to 150°C.

Feature Summary

• Integrates complete control logic and power stage circuitry for bipolar stepper motors
• Supports full-bridge drive configuration utilizing four half-bridges
• Operates via parallel interface for command input

Applications

• Bipolar stepper motor control systems
• General purpose motion control applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required tape-and-reel packaging format. Check for RoHS compliance status variations as indicated in official documentation. Ensure the part number corresponds to the exact electrical specifications required for the target design.

Selection Notes

Select this component for designs requiring integrated bipolar stepper motor driving capabilities with high thermal tolerance. The wide operating junction temperature range suits demanding environments. Verify that the parallel interface compatibility aligns with the system controller. Ensure the 800mA output current meets the motor coil requirements without exceeding thermal limits.

Part Context

This part belongs to the A3964 series of motor drivers from Allegro MicroSystems. It is designed specifically for bipolar stepper motor applications. The device combines digital control with analog power management in a single IC solution. It simplifies system design by reducing the component count typically required for discrete motor drive implementations.

Replacement Considerations

A3966SLBTR-T is listed as a similar replacement option.