A6274KLPTR-T

Overview

The A6274KLPTR-T is a linear LED driver IC from Allegro MicroSystems, designed for automotive applications with AEC-Q100 qualification. It features six independent outputs capable of delivering up to 60mA per channel. The device supports PWM dimming and operates within a supply voltage range of 5V to 42V. It is housed in a 20-TSSOP-EP package with an exposed pad for thermal management. The operating junction temperature range extends from -40°C to 150°C.

Feature Summary

• Six-channel linear output configuration for precise current regulation
• Integrated PWM dimming capability for brightness control
• Automotive-grade reliability with AEC-Q100 certification
• Wide operating temperature range suitable for harsh environments

Applications

• Automotive exterior lighting systems
• Interior ambient LED illumination arrays
• High-current LED backlighting modules

Procurement Notes

Verify the specific suffix and tape change documentation when sourcing, as packaging updates may affect handling. Confirm lead times due to potential production delays. Ensure compatibility with 20-TSSOP-EP footprints during PCB layout. Check for RoHS3 compliance status prior to final procurement decisions.

Selection Notes

Select this component for designs requiring multiple low-to-medium current LED channels with linear regulation. It is suitable where high efficiency is less critical than simplicity and cost compared to switching drivers. Ensure the system voltage remains within the 5V to 42V input range. Consider thermal dissipation requirements given the linear topology at higher load currents.

Part Context

This part belongs to the A6274 series of LED drivers from Allegro MicroSystems. It is distinct from buck-type drivers like the A6216 or multi-output regulators like the A4402. The KLPTR-T suffix indicates the specific package type and reel quantity configuration for surface-mount assembly.

Replacement Considerations

A6274KLPTR-T-1 is listed as a parameter-equivalent substitute.