A2982SLW-T

Overview

The A2982SLW-T is an eight-channel source driver manufactured by Allegro MicroSystems, designed for high-side switching applications. It features a bipolar NPN + PNP output configuration within a 20-pin SOIC-W surface-mount package. The device supports load supply voltages up to 50 V and provides a maximum continuous collector current of 500 mA per channel. It operates within a temperature range of -20°C to 85°C and includes transient-protected outputs with a breakdown voltage capability of 80 V. The inputs are compatible with TTL, DTL, PMOS, or CMOS logic families.

Feature Summary

• Provides eight independent high-side switching channels for interfacing low-level logic with high-current loads
• Features transient-protected outputs to enhance reliability in inductive load environments
• Supports separate logic and load ground connections for improved noise immunity
• Compatible with standard digital logic families including TTL, DTL, PMOS, and CMOS

Applications

• Relay driving circuits
• Solenoid control systems
• Stepper and servo motor interfaces
• LED array illumination
• Print hammer drivers

Procurement Notes

Verify the specific suffix 'SLW' against the manufacturer's official datasheet to confirm pinout and packaging dimensions. Confirm RoHS compliance status as historical data indicates variations between tape-and-reel and tube versions. Check for Not Recommended for New Design (NRND) notices from Allegro MicroSystems before finalizing procurement plans.

Selection Notes

Select this component when eight-channel high-side sourcing is required with moderate current capabilities. Ensure the application load voltage does not exceed the 50 V rating under normal operating conditions. Verify that the input logic levels match the specified compatibility requirements. Consider thermal dissipation constraints given the 500 mA per channel output capability in the SOIC-W package.

Part Context

The A2982 belongs to the A2982 series of eight-channel source drivers from Allegro MicroSystems. It serves as a bridge between low-power control logic and high-power loads. The SLW variant specifically denotes the wide SOIC surface-mount package option. This family is engineered for robust performance in industrial and automotive-grade environments requiring reliable switching of inductive and resistive loads.

Replacement Considerations

Public confirmed substitute part numbers include A2982ELW-T and A2982ELWTR-T. These variants share the same functional description but may differ in packaging or ordering suffixes. Verify electrical parameters and pin compatibility before substitution.