LNK6427K-TL

AC DC Converters, Offline Switchers Overview

The LNK6427K-TL is a LinkSwitch-3 AC/DC converter IC designed for universal input voltages ranging from 90 VAC to 264 VAC. It delivers up to 9 W of output power and operates at a switching frequency of 85 kHz. The device utilizes an eSOP-12B-5 package and supports surface mount installation. It functions as a constant voltage/constant current switcher with a maximum operating temperature of +150°C and a minimum of -40°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates high-voltage switched-current source for startup and bias supply
• Includes programmable constant voltage and constant current control modes
• Features integrated high-voltage switch with thermal shutdown protection

AC DC Converters, Offline Switchers Applications

• Universal input offline AC/DC converters
• Battery chargers
• Adapters and general-purpose power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'K' indicates the eSOP-12B-5 package variant distinct from other pinouts. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure handling procedures account for moisture sensitivity classification requirements during assembly.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring compact form factors due to its small package size. It is suitable for applications needing wide input voltage ranges without external auxiliary windings. Consider the 85 kHz switching frequency for EMI filtering requirements and thermal management within the target enclosure.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-3 family, which integrates a 700 V MOSFET, high-voltage startup circuit, oscillator, and thermal shutdown into a single monolithic chip. The series targets low-cost, high-reliability solutions for isolated flyback converters in consumer and industrial electronics.

AC DC Converters, Offline Switchers Replacement Considerations

The LNK6427D-TL serves as a functional alternative within the same family but utilizes a different SO-8C-8 package. Verify pin compatibility and thermal performance when substituting between package types.