LYT1404D

LED Driver IC Overview

The LYT1404D is an LED lighting driver IC from the LYTSwitch-1 series by Power Integrations. It functions as a single-stage constant current buck converter with power factor correction (PFC). The device operates at a switching frequency of 20 kHz and supports input voltages ranging from 85 VAC to 265 VAC. It provides a maximum output power of 22 W and features an integrated high-voltage MOSFET. The component is designed for non-isolated LED applications requiring efficient power conversion.

LED Driver IC Feature Summary

• Integrates a high-voltage MOSFET and control logic into a single package
• Provides simultaneous constant current regulation and power factor correction
• Operates at low electromagnetic interference frequencies suitable for audio-sensitive environments

LED Driver IC Applications

• Non-isolated LED lighting drivers
• Buck converter topologies for LED arrays
• Single-stage AC-to-DC LED power supplies

LED Driver IC Procurement Notes

Verify the specific suffix against official datasheets, as packaging variations such as tape-and-reel formats exist. Confirm RoHS compliance status through manufacturer documentation prior to integration. Ensure design compatibility with the specified 20 kHz operating frequency and thermal requirements for the target application environment.

LED Driver IC Selection Notes

Select this component for designs requiring a simplified single-stage solution that eliminates the need for separate PFC circuits. It is appropriate for applications where non-isolated topologies are permissible and strict EMI limits allow for 20 kHz operation. Evaluate thermal management needs based on the 22 W power capability and package constraints.

LED Driver IC Part Context

This part belongs to the LYTSwitch-1 family, which targets low-power offline LED driver applications. The series emphasizes high integration to reduce external component count. The LYT1404D specifically addresses the requirement for combined PFC and constant current regulation in a compact form factor.

LED Driver IC Replacement Considerations

Consult official substitution guides for equivalent parts within the LYTSwitch family. Verify pinout compatibility and electrical parameter alignment before replacing existing designs.