LYT3326D-TL

LED Driver IC Overview

The LYT3326D-TL is an LED lighting driver IC from the LYTSwitch-3 series by Power Integrations. It integrates a high-voltage switched capacitor power supply and a current-mode controller for single-stage PFC and constant current LED driving. The device supports a maximum output voltage of 725V and delivers up to 18W of output power. It is housed in an SO-16B-14 package with SMD/SMT installation style. The component operates within a temperature range of -40°C to +150°C and features one channel with a single output. It includes internal soft-start, cycle-by-cycle current limiting, and thermal shutdown protection.

LED Driver IC Feature Summary

• Integrates high-voltage switched capacitor power supply and current-mode controller
• Provides single-stage PFC and constant current regulation
• Includes internal soft-start and thermal shutdown protection

LED Driver IC Applications

• LED lighting drivers
• General illumination applications
• Commercial lighting systems

LED Driver IC Procurement Notes

Verify the exact part number suffix against official manufacturer documentation to ensure correct packaging and marking specifications. Confirm moisture sensitivity level requirements and reflow soldering profile compatibility prior to assembly. Cross-reference the datasheet revision date to validate parameter accuracy. Ensure procurement channels provide authentic components with traceable origin records.

LED Driver IC Selection Notes

Select this component for designs requiring integrated PFC and constant current control in a compact form factor. Consider the 725V output voltage limit and 18W power capability when sizing the transformer and LED string. Evaluate the SO-16B-14 package thermal performance for the intended application environment. Compare against other LYTSwitch-3 variants if different power levels or voltage ranges are required.

LED Driver IC Part Context

The LYT3326D-TL belongs to the LYTSwitch-3 family, which combines primary-side regulation with high integration. This series targets cost-sensitive LED applications by eliminating secondary side components. The device simplifies design through built-in protections and reduced external component count compared to discrete solutions.

LED Driver IC Replacement Considerations

Consult the official Power Integrations replacement guide for verified substitutes. Direct pin-to-pin replacements within the same series may offer adjusted power ratings.