A6266KLPTR-T

Overview

The A6266KLPTR-T is a single-channel DC-DC boost LED driver IC from Allegro MicroSystems, designed for automotive applications. It operates with an input voltage range of 5V to 50V and delivers a regulated output current of 1A per channel. The device supports PWM dimming control and functions as a non-synchronous boost converter topology without internal switches. It is housed in a 16-pin eTSSOP package with an exposed pad (16-eTSSOP-EP) for surface mount installation. The component is qualified to AEC-Q100 standards and ensures reliable operation across a wide ambient temperature range of -40°C to 150°C.

Feature Summary

• Integrated high-side N-channel power switch for efficient boost conversion
• Programmable switching frequency ranging from 100kHz to 700kHz
• Precision constant current regulation with low ripple
• Comprehensive protection features including thermal shutdown and open-load detection

Applications

• Automotive daytime running lights (DRL)
• Front headlamp systems
• Fog lamps
• Reverse lights

Procurement Notes

Verify the specific suffix and tape/reel configuration against the manufacturer's latest datasheet before ordering. Confirm that the 16-eTSSOP-EP package footprint matches the design layout. Ensure compliance with RoHS3 specifications if required by the target market regulations. Check for any product change notices regarding packaging or material composition updates.

Selection Notes

Select this component for high-power automotive lighting where a boost topology is necessary to drive LEDs from a 12V or 24V system. The 1A output capability suits high-intensity applications. Consider the thermal performance of the exposed pad design for heat dissipation. Verify that the external inductor and capacitor selections support the desired switching frequency and current ripple requirements.

Part Context

This part belongs to the A6266 series of automotive LED drivers. It is specifically engineered for robust performance in harsh automotive environments. The device integrates advanced control circuitry to maintain consistent brightness despite input voltage fluctuations. It represents a solution for compact, high-efficiency lighting modules requiring precise current regulation.

Replacement Considerations

The A6271KLPTR-T-1 is listed as a similar replacement option. Verify pin compatibility and electrical parameters before substitution. Ensure the alternative device meets the same AEC-Q100 qualification and thermal requirements.