LYT1403D-TL

LED Driver IC Overview

The LYT1403D-TL is a single-stage LED driver IC from the LYTSwitch-1 family, designed for high-power-factor buck applications. It integrates a 700V power MOSFET and supports input voltages from 90 VAC to 265 VAC. The device delivers up to 15 W of output power with constant current regulation at a fixed switching frequency of 20 kHz. Packaged in an SOIC-8, it operates within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Integrates a 700V power MOSFET with primary-side regulation for simplified design
• Provides single-stage power factor correction (PFC) and constant current control
• Features fixed 20 kHz switching frequency for reduced acoustic noise

LED Driver IC Applications

• High-power-factor LED lighting fixtures
• Single-stage buck converter LED drivers
• Commercial and industrial LED illumination systems

LED Driver IC Procurement Notes

Verify the specific suffix 'TL' indicates tape-and-reel packaging when ordering. Confirm the manufacturer part number matches exactly to ensure correct integration into designs requiring the specified 700V rating and 20 kHz operation. Cross-reference official datasheets for thermal and electrical limits before finalizing procurement specifications.

LED Driver IC Selection Notes

Select this component for designs requiring integrated PFC and constant current regulation in a compact form factor. Ensure the application demands a 700V breakdown voltage and operates within the specified 90 VAC to 265 VAC input range. Verify that the required output power does not exceed the 15 W limit for optimal performance and thermal management.

LED Driver IC Part Context

This part belongs to the LYTSwitch-1 series, which combines a high-voltage power MOSFET with a controller in a single package. The series targets simple, cost-effective LED driver solutions. The LYT1403D variant specifically addresses buck topology requirements, distinguishing it from flyback or boost variants within the same product line.

LED Driver IC Replacement Considerations

Check for updated revisions within the LYT1403D series. Verify pin compatibility if substituting with other LYTSwitch-1 devices. Confirm that alternative parts support the same 700V rating and 20 kHz frequency for direct replacement in existing buck topology designs.