LNK6426D-TL

AC DC Converters, Offline Switchers Overview

The LNK6426D-TL is a LinkSwitch-3 AC/DC converter from Power Integrations, designed for low-power applications. It delivers up to 5.5 W at 85-265 VAC input with constant voltage and constant current regulation. The device integrates a 725V power MOSFET and operates in an SO-8C package with seven pins. It utilizes novel ON/OFF control to eliminate optocouplers and secondary circuitry, compensating for transformer tolerances and line variations.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage 725V power MOSFET within a single compact package.
• Employs novel ON/OFF control state machine for accurate output regulation.
• Eliminates the need for optocouplers and secondary side feedback circuitry.
• Programmable switching frequency allows for reduced transformer size.

AC DC Converters, Offline Switchers Applications

• Low power CV/CC charger designs
• Universal input AC/DC converters
• Battery chargers requiring precise current regulation

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'TL' indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs prioritizing minimal external component count and cost reduction. The integrated switch and controller simplify layout requirements. Consider the SO-8C package constraints and thermal dissipation capabilities when determining suitability for the intended power level and enclosure design.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-3 family, which focuses on simplifying offline switcher designs. It represents a generation of integrated solutions that remove traditional feedback components. The series targets consumer electronics and adapter markets where efficiency and bill-of-materials cost are critical factors.

AC DC Converters, Offline Switchers Replacement Considerations

The LNK6426D is a tube-packaged equivalent within the same family. Verify functional compatibility regarding pinout and electrical parameters before substitution. Packaging differences do not alter the core switching functionality or control logic of the device.