LYT3328D

LED Driver IC Overview

The LYT3328D-TL is a single-stage LED driver IC from the LYTSwitch-3 family, designed for high-performance power factor correction and constant current regulation. It integrates a 725V high-voltage MOSFET with an advanced controller to support output powers up to 20.4W. The device operates in SO-16B-14 packages and utilizes internal feedback mechanisms to eliminate optocouplers. It provides precise dimming control and robust protection features suitable for commercial and residential lighting applications requiring high efficiency.

LED Driver IC Feature Summary

• Integrates a 725V high-voltage power switch with primary-side regulation circuitry
• Enables single-stage design by combining PFC and constant current control functions
• Supports accurate dimming capabilities without requiring secondary side components
• Includes comprehensive protection mechanisms for reliable operation under varying loads

LED Driver IC Applications

• Commercial LED downlights and panel lights
• Residential general illumination fixtures
• High-power LED street lighting modules
• Industrial area lighting systems

LED Driver IC Procurement Notes

Verify the specific suffix 'TL' indicates tape and reel packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure supply chain partners provide valid traceability records. Cross-reference the exact part number against current datasheets to confirm pinout compatibility and thermal specifications for your specific PCB layout requirements.

LED Driver IC Selection Notes

Select this component for designs requiring integrated power factor correction and constant current drive in a compact footprint. The 725V breakdown voltage supports wide input voltage ranges common in global markets. Consider the SO-16B-14 package for thermal management needs associated with 20.4W output levels. Evaluate system efficiency targets against the single-stage topology benefits to determine suitability for cost-sensitive or space-constrained lighting architectures.

LED Driver IC Part Context

This device belongs to the LYTSwitch-3 series, which represents Power Integrations' third-generation technology for isolated and non-isolated LED drivers. The series focuses on reducing external component count while maintaining high reliability. The LYT3328D variant specifically targets higher power applications within the single-stage category, offering enhanced performance metrics compared to previous generations in terms of power density and dimming linearity.

LED Driver IC Replacement Considerations

The LYT3318D-TL serves as a confirmed substitute option within the same product family. Both devices share identical packaging and functional architecture but differ in maximum voltage ratings. Verify that the application voltage requirements align with the specific rating differences between these two variants before implementing any substitution strategy.