A6276SLW

Overview

The A6276SLW is a linear LED driver IC manufactured by Allegro MicroSystems, designed for high-precision illumination control. It features sixteen independent constant-current outputs capable of delivering up to 75.5mA per channel. The device operates on a supply voltage ranging from 4.5V to 5.5V and supports an output voltage of 4V. Utilizing a shift register topology, it facilitates serial data input for efficient control. The component is housed in a 24-SOIC surface-mount package with a width of 7.50mm. It functions within a temperature range of -20°C to 85°C and supports a clock frequency of 20MHz.

Feature Summary

• Provides sixteen individually addressable constant-current channels for precise LED regulation
• Integrates a shift register interface for simplified serial data transmission and control
• Features internal switching capability to manage load connections directly

Applications

• Automotive interior lighting systems requiring multi-zone control
• Industrial display backlighting arrays
• Consumer electronic indicator panels

Procurement Notes

Verify the specific ordering suffix and RoHS compliance status carefully, as variants such as the A6276SLW-T differ in environmental certification. Confirm that the discontinued status does not impact long-term supply chain stability for existing designs. Ensure the 24-SOIC footprint matches the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a low-voltage 5V system requires multiple synchronized LED channels with linear current regulation. It is suitable for applications where serial control reduces pin count compared to parallel drivers. Consider the operating temperature range and package thermal characteristics against the expected ambient conditions of the installation environment.

Part Context

This part belongs to the A6276 family of LED drivers from Allegro MicroSystems. The family focuses on providing scalable solutions for multi-channel illumination tasks. Variants within the series may offer different packaging options or environmental ratings while maintaining the core sixteen-output architecture and linear drive characteristics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.