A6262KLYTR-T

Overview

The A6262KLYTR-T is a linear LED driver IC from Allegro MicroSystems designed for automotive lighting applications. It features four independent outputs, each capable of delivering up to 100mA with precise current regulation. The device operates within a supply voltage range of 6V to 50V and supports PWM dimming for brightness control. Packaged in a 10-MSOP-EP format, it meets AEC-Q100 automotive standards and functions reliably across an extended temperature range of -40°C to 125°C.

Feature Summary

• Four-channel linear constant current regulation for high-brightness LED arrays
• Integrated internal switches enable direct connection to LED loads without external components
• Supports pulse-width modulation (PWM) input for efficient digital dimming control
• Includes thermal shutdown protection to safeguard the device under extreme operating conditions

Applications

• Automotive interior illumination such as reading lamps and overhead console lights
• Exterior vehicle lighting including tail lamps and brake light assemblies
• Trunk and cargo area illumination systems
• Industrial and consumer high-brightness LED lighting replacements

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and pin alignment against the 10-MSOP-EP specification. Ensure compliance with RoHS3 directives and check for specific lot traceability requirements relevant to automotive assembly lines before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring four independently controlled LED channels with fixed current settings. It is suitable for applications needing robust operation under wide voltage fluctuations typical of automotive environments. Consider the thermal performance of the exposed pad package for heat dissipation needs in enclosed spaces.

Part Context

This part belongs to the A6262 series of programmable current regulators developed specifically for replacing incandescent bulbs with LEDs. The series emphasizes high reliability and simplified design by integrating current sensing and regulation into a compact surface-mount package, reducing the overall bill of materials for lighting modules.

Replacement Considerations

The A6261KLYTR-T is documented as a parameter-equivalent substitute. Verify pin compatibility and output current specifications before implementation to ensure seamless integration into existing designs without circuit modification.

FAQ

How is the LED output current regulated?

The output current for each channel is set by a single external reference resistor, providing precise regulation with a tolerance of approximately 5%.

What happens if the device overheats?

The integrated thermal shutdown circuit disables the outputs if the junction temperature reaches approximately 165°C to prevent damage.

Can the device be used for dimming?

Yes, the ENABLE input accepts pulse-width modulation signals to adjust LED brightness efficiently.