A6282ELW-T

Overview

The A6282ELW-T is a 16-channel constant-current LED driver manufactured by Allegro MicroSystems. It features linear regulation with Schmitt trigger inputs for noise immunity and supports a logic supply range of 3.0 V to 5.5 V. The device provides up to 50 mA per channel with an output voltage capability of 12 V. Key electrical parameters include a high data input rate of 30 MHz, internal UVLO, and thermal shutdown circuitry. Output current accuracy is maintained within ±3% between channels and ±7% across ICs over the operating temperature range. It utilizes low-power CMOS logic and latches.

Feature Summary

• Provides sixteen independent constant-current outputs for precise LED control
• Integrates Schmitt trigger inputs to enhance signal noise immunity
• Includes built-in under-voltage lockout and thermal shutdown protection mechanisms

Applications

• LED backlighting systems
• General indicator lighting applications
• Consumer electronics display modules

Procurement Notes

Verify the specific package variant, as the model suffix indicates a SOIC-W package. Confirm availability status, as this component may be discontinued or obsolete in certain markets. Ensure the ordering part number matches the required tape-and-reel or cut-tape format. Cross-reference the manufacturer's latest product change notices for any packaging updates.

Selection Notes

Select this component when designing circuits requiring multiple synchronized LED channels with uniform current distribution. The linear topology suits applications where simple control interfaces are preferred over complex PWM dimming at high frequencies. Consider the 12 V output limit and 50 mA per channel capacity against the target LED load requirements.

Part Context

This device belongs to Allegro MicroSystems' line of constant-current LED drivers designed for multi-channel illumination. It complements other series like the A6285 by offering a similar functional architecture but with distinct pin counts and current ratings. The part is engineered for reliability in automotive and industrial environments.

Replacement Considerations

Publicly documented substitutes include the MAX6969AWG+ from Analog Devices Inc. Verify pin compatibility and current specifications before substitution. Alternative packages such as QFN variants may require schematic redesign.