A2982SLW

Overview

The A2982SLW is an eight-channel source driver manufactured by Allegro MicroSystems, designed for high-side switching applications. It features a bipolar output configuration with NPN and PNP transistors, housed in 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 utilizes non-inverting open/switch interface logic.

Feature Summary

• Provides eight independent high-side source channels for interfacing low-level logic with high-current loads
• Features transient-protected outputs to enhance reliability in inductive load environments
• Supports TTL, DTL, PMOS, or CMOS compatible input signals without requiring separate supply voltage

Applications

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

Procurement Notes

Verify component authenticity through authorized distributors due to discontinuation status. Confirm RoHS compliance requirements as the standard A2982SLW may not meet current environmental regulations compared to newer variants like the SLWTR-T. Validate package dimensions against PCB footprint specifications before finalizing procurement decisions.

Selection Notes

Select this component for designs requiring isolated logic and load grounds with high-side switching capabilities. Ensure the application does not exceed the 50 V collector-emitter voltage limit. Consider thermal management strategies given the 500 mA output capability per channel in a compact SOIC package.

Part Context

This part belongs to the A2982 series of eight-channel source drivers from Allegro MicroSystems. It serves as a legacy alternative to newer tape-and-reel versions, offering identical electrical performance in a bulk-packaged format. The series is engineered for robust industrial and consumer electronics applications requiring reliable high-current sourcing.

Replacement Considerations

A2982SLWTR-T is listed as a direct replacement option.