LYT4214L

AC DC Converters, Offline Switchers Overview

The LYT4214L is an AC-DC offline switcher from the LYTSwitch-4 family, designed for LED lighting and general power supply applications. It integrates a 725V power switch and supports flyback, buck, and boost topologies. The device operates at a fixed switching frequency of 140 kHz and delivers up to 22 W of output power. It features a 6-pin eSIP-7F package with an exposed pad for thermal management. Operating temperatures range from -40°C to +150°C junction temperature.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage 725V power switch within a compact package.
• Supports multiple converter topologies including flyback, step-down (buck), and step-up (boost).
• Includes internal soft-start and cycle-by-cycle current limiting for robust operation.

AC DC Converters, Offline Switchers Applications

• LED lighting drivers
• General-purpose isolated power supplies
• Non-isolated DC-DC converters

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Check for obsolescence notices or lifecycle changes prior to procurement decisions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated high-voltage switching in small form factors. Ensure thermal design accommodates the exposed pad for heat dissipation. Verify input voltage ranges match the specific topology requirements.

AC DC Converters, Offline Switchers Part Context

Part of the LYTSwitch-4 series, which combines controller and power MOSFET in a single package. This integration reduces external component count and simplifies design for low-to-medium power applications.

AC DC Converters, Offline Switchers Replacement Considerations

Check for pin-compatible alternatives within the same family. Verify electrical parameters such as breakdown voltage and switching frequency when substituting.