LYT7503D-TL

LED Driver IC Overview

The LYT7503D-TL is an LED lighting driver IC from the LYTSwitch-7 family, designed for single-stage PFC applications. It integrates a 750V power FET and operates within an input voltage range of 90 VAC to 308 VAC. The device supports a maximum output current of 125 mA and delivers up to 18 W of power dissipation. Operating at a frequency of 20 kHz, it features Triac dimming capability and is housed in an SOIC-8 package. The component functions as an AC/DC offline switcher with buck topology.

LED Driver IC Feature Summary

• Integrates a high-voltage 750V power FET for compact single-stage design
• Supports Triac dimming functionality for adjustable LED brightness control
• Provides constant current regulation for stable LED performance

LED Driver IC Applications

• LED lighting drivers requiring single-stage PFC
• Triac-dimmable general illumination fixtures
• Offline AC/DC conversion for low-power LED arrays

LED Driver IC Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status prior to integration. Check for moisture sensitivity level requirements during storage and handling. Ensure the specific suffix matches design specifications. Review datasheet revisions for any functional updates.

LED Driver IC Selection Notes

Select this component for designs requiring integrated PFC and dimming in a small footprint. Consider the 750V rating for isolation requirements. Evaluate thermal management needs given the 18W power dissipation limit. Verify compatibility with existing PCB layouts for the SOIC-8 package. Assess input voltage ranges against target market standards.

LED Driver IC Part Context

Part of the LYTSwitch-7 series, which consolidates controller, power switch, and protection circuits into a single package. This series targets cost-sensitive and space-constrained LED applications. The D suffix indicates the specific pinout and package variant. The TL suffix denotes tape and reel packaging options.

LED Driver IC Replacement Considerations

Check for official obsolescence notices. Consult manufacturer documentation for recommended upgrades within the LYTSwitch family. Verify electrical parameter compatibility before substituting.