A6279ELWTR-T

$1.90

Description：IC LED DRVR LINEAR 75.5MA 24SOIC
Series：-
Mfr：Allegro MicroSystems
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:99844784f153 Category: LED Drivers IC Brand: Allegro MicroSystems

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Product introduction

Product Detailed Parameters

Description：IC LED DRVR LINEAR 75.5MA 24SOIC
Series：-
Mfr：Allegro MicroSystems
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：Shift Register
Internal Switch(s)：Yes
Number of Outputs：16
Voltage - Supply (Min)：3V
Voltage - Supply (Max)：5.5V
Voltage - Output：-
Current - Output / Channel：75.5mA
Frequency：25MHz
Dimming：-
Applications：-
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：24-SOIC (0.295", 7.50mm Width)
Supplier Device Package：24-SOIC
Grade：-
Qualification：-

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A6279ELWTR-T

Overview

The A6279ELWTR-T is a linear LED driver IC featuring a 16-channel output topology driven by an internal shift register. It operates on a supply voltage range of 3V to 5.5V and delivers a maximum channel current of 75.5mA. The device supports PWM dimming at a frequency of 25MHz and functions within an ambient temperature range of -40°C to +85°C. It is housed in a 24-SOIC surface-mount package with an exposed pad for thermal management.

Feature Summary

Integrates a 16-output linear driver controlled via a serial shift register interface
Supports high-frequency PWM dimming for precise brightness control
Includes internal switching elements to simplify external circuit design

Applications

Automotive interior lighting systems
Industrial LED illumination arrays
Consumer electronic display backlighting

Procurement Notes

Verify component status as the A6279ELWTR-T is listed as obsolete or end-of-life. Confirm availability of alternative packages or updated series replacements from Allegro MicroSystems before finalizing designs. Ensure compliance with RoHS3 specifications if required, noting that earlier revisions may differ. Validate lead times and minimum order quantities with authorized distributors due to potential stock limitations.

Selection Notes

Select this component for applications requiring multiple synchronized LED channels with linear current regulation. The 24-SOIC package offers a balance between pin count and board space. Consider the 75.5mA per-channel limit when designing thermal dissipation strategies. Verify that the 3V to 5.5V supply range aligns with the system power architecture.

Part Context

This part belongs to the A627x family of LED drivers from Allegro MicroSystems, designed for multi-channel lighting control. The family typically includes variants like the A6277 and A6278, differing primarily in output counts and packaging options. These devices are engineered for reliable operation in automotive and industrial environments where stable current regulation is critical.