A6275SLWTR-T

Overview

The A6275SLWTR-T is a linear LED driver IC manufactured by Allegro MicroSystems. It features an internal shift register topology with eight outputs, each capable of delivering up to 75.5mA. The device operates within a supply voltage range of 4.5V to 5.5V and supports PWM dimming at frequencies up to 20MHz. It is housed in a 16-SOIC package with dimensions of 15.4 x 7.5 x 2.35mm. The component is rated for an operating temperature range of -20°C to +85°C.

Feature Summary

• Integrates an internal shift register for simplified serial control of multiple LED channels.
• Provides constant current regulation for precise brightness control across eight independent outputs.
• Supports high-frequency PWM dimming signals for flicker-free visual performance.

Applications

• Control of seven-segment displays via microcontroller serial ports
• Brightness management for multi-display systems
• General-purpose LED lighting driver circuits

Procurement Notes

Verify the specific suffix 'SLWTR-T' against official datasheets to confirm the tape-and-reel packaging format and lead-free status. Ensure the ordering quantity aligns with standard reel quantities as specified by the manufacturer. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement orders.

Selection Notes

Select this component when a linear driver with integrated shift register functionality is required for low-voltage LED applications. Consider the 75.5mA output current limit and 5.5V maximum supply voltage constraints. Evaluate thermal dissipation capabilities within the SOIC package for the intended ambient temperature environment.

Part Context

This part belongs to the A6275 series of LED drivers from Allegro MicroSystems. The series is designed for applications requiring simple serial interface control and multiple channel regulation. Variants in the family may differ in package type or current ratings, but share the core shift register architecture.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical specifications with alternative components if sourcing issues arise.

FAQ

What is the maximum supply voltage for the A6275SLWTR-T?

The maximum supply voltage is 5.5V.

Does the A6275SLWTR-T support PWM dimming?

Yes, it supports PWM dimming with frequencies up to 20MHz.