A6280EESTR-T

Overview

The A6280EESTR-T is a linear LED driver IC featuring three independent outputs with a maximum current of 150mA per channel. It operates on a supply voltage range from 4.75V to 17V and supports PWM dimming at frequencies up to 5MHz. The device utilizes a shift register topology for output control and is housed in a 16-QFN/MLP (3x3) package. It functions within an ambient temperature range of -40°C to 85°C.

Feature Summary

• Integrates three linear constant-current channels for high-brightness LED arrays
• Supports high-frequency pulse-width modulation for precise brightness control
• Includes internal switching capability to simplify circuit design

Applications

• Automotive interior lighting systems
• Industrial LED illumination modules
• Consumer electronic backlighting applications

Procurement Notes

Verify component authenticity through authorized Allegro MicroSystems distributors or certified partners. Confirm the specific suffix matches the required package and tape-and-reel specifications. Ensure compliance with RoHS3 standards and check for any product change notices regarding packaging updates before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring multiple synchronized LED channels with linear regulation. Consider the 16-QFN thermal performance for heat dissipation requirements. Evaluate the 150mA output limit against total load demands and ensure the input voltage stays within the specified operational window for stable current regulation.

Part Context

This part belongs to the A6280 series of LED drivers designed for automotive and industrial markets. It complements Allegro's portfolio of power management solutions by providing integrated multi-channel control. The series targets applications needing reliable, compact LED driving capabilities with minimal external component count.

Replacement Considerations

Public records indicate this specific part number is discontinued. Verify availability of alternative packages within the A6280 family or consult manufacturer documentation for direct functional equivalents that maintain pin compatibility and electrical specifications.