LYT5228D

AC DC Converters, Offline Switchers Overview

The LYT5228D is an offline switcher from the LYTSwitch-5 family, designed for non-isolated Buck-Boost LED driver applications. It integrates a high-voltage power MOSFET and control circuitry to provide single-stage power factor correction (PFC) and precise constant current regulation. The device operates with an input voltage range of 90 VAC to 308 VAC and supports output currents up to 240 mA. Key electrical parameters include a switching frequency of 66 kHz, a maximum drain voltage rating of 700 V, and a junction temperature range of -40°C to 150°C. It utilizes a 16-pin SOIC package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates single-stage power factor correction with precise LED current control
• Supports non-isolated Buck-Boost topologies for wide input voltage ranges
• Includes built-in protection mechanisms such as thermal shutdown and open-loop detection

AC DC Converters, Offline Switchers Applications

• LED tube lighting systems
• High-density commercial LED drivers
• Non-dimmable AC-powered LED fixtures

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and packaging variations. Ensure compatibility with the target thermal management requirements given the integrated power switch. Confirm RoHS compliance status through manufacturer documentation prior to finalizing component selection for production.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring high efficiency and low total harmonic distortion in non-isolated architectures. It is suitable for applications demanding a compact solution with minimal external component count. Evaluate the required output current against the device's maximum capability to ensure reliable operation under varying load conditions.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LYTSwitch-5 series, which targets cost-effective and high-performance LED lighting solutions. Unlike general-purpose AC-DC converters, this series is optimized specifically for driving LED strings directly from the mains without isolation transformers, simplifying the bill of materials and reducing system height.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution lists for equivalent devices within the LYTSwitch-5 family or other Power Integrations LED driver ICs that match the required current and voltage specifications.