LNK6666K

AC DC Converters, Offline Switchers Overview

The LNK6666K is an AC/DC converter from the LinkSwitch-HP series, manufactured by Power Integrations. It utilizes a Flyback topology with Silicon technology and operates at a switching frequency of 132 kHz. The device supports an input voltage range of 85 VAC to 265 VAC, delivering up to 48 W output power at 230 VAC (30 W at 85-265 VAC). Key electrical parameters include a maximum duty cycle of 66%, a quiescent supply current of 1.3 mA, and a breakdown voltage of 650 V. It features a 12-ESOP package and functions within a temperature range of -40°C to +150°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates primary-side regulation controller and high-voltage power MOSFET in a single package
• Multi-mode control maximizes efficiency across the full load range
• Includes extensive protection features such as output short-circuit and overvoltage protection

AC DC Converters, Offline Switchers Applications

• LCD monitors
• Televisions
• Adapters
• Home appliances
• Embedded power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Review datasheet specifications for thermal management requirements associated with the eSOP-12B package. Ensure design compatibility with required isolation standards and safety certifications before finalizing procurement plans.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring high-efficiency offline conversion with simplified transformer sizing due to 132 kHz operation. Consider the 650 V MOSFET rating for cost-effective systems meeting derating requirements. Evaluate the need for precise current limit programming and fast AC reset capabilities specific to the application environment.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-HP family, which combines a controller and high-voltage power MOSFET into one package. The series offers constant voltage regulation from 9 W to 90 W. The LNK6666K specifically provides a 650 V MOSFET option for lowest system cost compared to higher voltage variants.

AC DC Converters, Offline Switchers Replacement Considerations

LNK6666K-TL serves as a tape-and-reel variant of the same functional device.