LNK6768E

AC DC Converters, Offline Switchers Overview

The LNK6768E is an AC/DC converter from the LinkSwitch-HP family, integrating a controller and high-voltage power MOSFET. It supports flyback topology with primary-side regulation (PSR). The device operates at a switching frequency of 120 kHz to 136 kHz and features a 650 V breakdown voltage. It delivers up to 48 W at 85-265 VAC input and 68 W at 230 VAC input.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a primary-side regulated controller and high-voltage power MOSFET in a single package
• Features multi-mode control for high efficiency across full load ranges
• Includes extensive protection mechanisms such as output short-circuit and overvoltage protection

AC DC Converters, Offline Switchers Applications

• LCD monitors and televisions
• Adapters and chargers
• Home appliances
• Embedded power supplies for DVD players and set-top boxes
• Industrial power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'K' or 'E' when ordering, as packaging differs significantly between reel and tube formats. Confirm RoHS compliance status through official datasheets. Ensure design compatibility with the eSIP-7C package thermal requirements. Cross-reference part numbers carefully to avoid confusion with similar LinkSwitch-HP variants.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring accurate primary-side regulation without optocouplers. The 650 V MOSFET rating suits cost-sensitive applications compared to higher voltage options. Consider the 120-136 kHz frequency range for transformer size optimization. Verify that the 48 W to 68 W power capability aligns with system requirements.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-HP series by Power Integrations. The family offers monolithic integration of offline switcher functions. It targets medium-power applications where system cost and efficiency are critical. The technology utilizes silicon-based components for reliable operation.

AC DC Converters, Offline Switchers Replacement Considerations

LNK6768V shares similar electrical characteristics but uses a different package format. LNK6767E is a lower power variant within the same family. Verify pinout and thermal performance before substituting.