A3973SLBTR-T

Overview

The A3973SLBTR-T is a brushed DC motor driver from Allegro Microsystems, housed in a 16-pin SOIC package. It features a full-bridge configuration with a maximum IGBT collector current of 1.5 A and a maximum collector-emitter voltage (Vceo) of 50 V. The device operates on a supply voltage between 3 V and 5.5 V, supporting a typical switching frequency of 70 kHz. It functions within a temperature range of -20°C to 85°C, with dimensions of 10.3 mm length and 2.45 mm height.

Feature Summary

• Integrates a full-bridge driver for brushed DC motors
• Supports high-voltage operation up to 50 V
• Includes built-in control and power stages

Applications

• Brushed DC motor control systems
• General industrial motor applications

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm that the 16-pin SOIC footprint matches the target PCB design. Ensure the 50 V load voltage rating aligns with the application's power requirements. Check for RoHS compliance status if environmental regulations apply. Validate the operating temperature range against the intended environment.

Selection Notes

Select this component for applications requiring a single-chip solution for brushed DC motors. The 1.5 A output current suits moderate load requirements. The 50 V rating allows for higher voltage bus systems compared to lower-rated alternatives. Consider the 16-pin SOIC package for surface-mount assembly constraints.

Part Context

This part belongs to the Allegro MicroSystems motor driver family. It provides an integrated solution combining logic control and power driving capabilities. The device simplifies circuit design by reducing the need for external discrete components typically required for bridge drivers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.