SC446TETRT

Overview

The SC446TETRT is a high-efficiency integrated LED driver manufactured by Semtech Corporation. Designed for driving three strings of LEDs, this component supports a current rating of 100mA per string. It utilizes surface-mount packaging to facilitate compact circuit board layouts. The device integrates necessary control logic and power stages to manage LED illumination efficiently. Key electrical characteristics include support for multi-string configurations with precise current regulation capabilities suitable for backlighting and indicator applications.

Feature Summary

• Integrates driver functionality for three independent LED strings
• Supports 100mA output current per channel
• Optimized for high efficiency in power conversion

Applications

• LED backlighting systems
• Display panel illumination
• High-density lighting modules

Procurement Notes

Verify the specific ordering suffix TBT or TRT against the manufacturer's latest datasheet to ensure correct tape-and-reel specifications. Confirm that the package dimensions and pinout match the target PCB footprint. Check for any recent lifecycle status changes or obsolescence notices directly from Semtech before finalizing procurement plans.

Selection Notes

Select this component when a solution for driving multiple LED strings with integrated control is required. Ensure the application voltage and current requirements align with the 100mA per string specification. Consider thermal management requirements based on the expected power dissipation in the chosen enclosure environment.

Part Context

This part belongs to Semtech's family of high-efficiency integrated LED drivers. Similar parts in the series include the SC441 and SC445, which offer different string counts and current ratings. These components are designed to simplify LED drive circuits by reducing external component count.

Replacement Considerations

Direct replacements may include other Semtech models such as the SC441 or SC445 if the string count or current requirements differ. Verify compatibility with existing firmware or control signals if replacing within a complex system architecture.