A6282ELPTR-T

Overview

The A6282ELPTR-T is a linear LED driver IC featuring 16 constant-current output channels, each capable of delivering up to 50 mA. It supports an LED output voltage of up to 12 V and operates with a logic supply range of 3.0 to 5.5 V. The device utilizes a shift register topology with Schmitt trigger inputs for noise immunity and supports data input rates up to 30 MHz. Output current accuracy is maintained within ±3% between channels and ±7% between ICs across the operating temperature range. It includes internal UVLO and thermal shutdown circuitry.

Feature Summary

• Provides 16 independent constant-current outputs for precise LED control
• Integrates Schmitt trigger inputs to enhance noise immunity in high-speed applications
• Includes built-in protection mechanisms such as under-voltage lockout and thermal shutdown

Applications

• Display panel backlighting
• Signage illumination
• Control panel indicator lighting

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for obsolescence notices, as this part may be discontinued. Ensure the specific tape-and-reel packaging variant matches your automated assembly requirements. Validate that the 24-TSSOP-EP package dimensions align with your PCB footprint design before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring multiple individually controlled LED channels with high data throughput. The 30 MHz interface speed suits applications needing rapid refresh rates. Consider the linear topology for simpler designs where efficiency is secondary to cost and ease of implementation. Ensure the 12 V output voltage headroom meets the series LED string requirements.

Part Context

This device belongs to Allegro MicroSystems' family of constant-current LED drivers designed for display and signage applications. It shares functional similarities with other multi-channel drivers but is distinguished by its specific 16-channel configuration and 30 MHz serial interface capability. The part is intended for use in environments requiring reliable, noise-immune LED control with integrated safety features.

Replacement Considerations

Publicly confirmed substitute part numbers include STP16CPP05TTR, STP16CPP05XTTR, TLC5926IPWPR, and TLC5927IPWPR. Verify pin compatibility and electrical specifications before substitution.