LNK6767K

AC DC Converters, Offline Switchers Overview

The LNK6767K-TL is an AC/DC converter IC from the LinkSwitch-HP series, designed for flyback topology applications. It operates within an input voltage range of 85 VAC to 265 VAC and delivers a maximum output power of 36 W at 50 V. The device utilizes Silicon technology with a switching frequency of 132 kHz and a maximum duty cycle of 66%. It features a low operating supply current of 1.4 mA and supports an output current of 12.5 uA. The component functions reliably across a temperature range of -40°C to +125°C and is housed in an eSOP-12B surface-mount package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates primary-side regulation controller and high-voltage power MOSFET in a single package
• Provides precise constant voltage regulation with +/-5% accuracy
• Includes comprehensive protection mechanisms such as output short-circuit, over-current, over-voltage, and thermal shutdown
• Utilizes multi-mode control to maximize efficiency across the full load range

AC DC Converters, Offline Switchers Applications

• LCD displays and televisions
• Power adapters
• Home appliances
• Embedded power supplies such as DVD players and set-top boxes
• Industrial control systems

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix (e.g., TL) against the required packaging format, as standard tubes differ from reels or cut tape. Confirm RoHS compliance status through official datasheets. Ensure design accounts for humidity sensitivity levels during storage and handling. Cross-reference pinout configurations with the latest manufacturer documentation to avoid integration errors.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring simplified power supply architectures with minimal external components. The integrated soft-start reduces startup stress on the system. Consider the 650 V MOSFET rating for cost-effective solutions where derating requirements are met. Evaluate the 132 kHz operation for potential transformer size reduction compared to lower-frequency alternatives.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-HP family, which offers high-efficiency offline switching capabilities. The series is characterized by its ability to deliver strict constant voltage regulation across power ranges from 9 W to 90 W. The LNK6767K specifically targets mid-power applications requiring robust protection and high energy efficiency standards.

AC DC Converters, Offline Switchers Replacement Considerations

The LNK6767K is listed as obsolete in some distributor records. Potential substitutes within the same family include the LNK6767V or other variants in the LNK67xx series, provided they match the required voltage and current specifications.