A6279ELPTR-T

Overview

The A6279ELPTR-T is a linear LED driver IC manufactured by Allegro MicroSystems. It features 16 outputs with a maximum current of 75.5mA per channel. The device operates on a supply voltage range of 3V to 5.5V and utilizes a shift register topology for control. It is housed in a 28-VFQFN exposed pad package, specifically the 28-QFN (5x5) configuration. The component supports surface mount installation and functions within an ambient temperature range of -40°C to 85°C.

Feature Summary

• Linear regulation architecture for precise current control
• Integrated shift register interface for serial data input
• Multiple output channels for driving LED arrays

Applications

• LED lighting driver circuits
• Display backlighting systems
• Industrial LED applications

Procurement Notes

Verify part status as obsolete or end-of-life before design finalization. Confirm package type matches the 28-QFN specification. Check RoHS compliance documentation. Ensure supply chain availability for existing production runs. Review datasheet revisions for any functional changes.

Selection Notes

Select this component for designs requiring multiple low-current LED channels controlled via a serial interface. The linear topology suits applications where efficiency is secondary to simplicity and cost. Verify that the 5.5V maximum supply voltage aligns with system power rails. Consider thermal management requirements for the QFN package.

Part Context

This part belongs to the A6279 series of LED drivers from Allegro MicroSystems. It shares architectural similarities with other members like the A6279EETTR-T but differs in packaging and specific electrical characteristics. The series targets general-purpose LED illumination needs across various industries.

Replacement Considerations

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