LNK6775K

AC DC Converters, Offline Switchers Overview

The LNK6775K-TL is a LinkSwitch-HP series offline switcher IC integrating a primary-side regulation controller and a high-voltage power MOSFET. It supports flyback topology with an input voltage range of 85 VAC to 265 VAC. The device delivers up to 31 W at 85-265 VAC and 42 W at 230 VAC, with a maximum output voltage of 50 V. Operating at a switching frequency of 132 kHz, it features a maximum duty cycle of 66% and a quiescent supply current of 1.1 mA. The component utilizes silicon technology 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 for simplified design
• Provides precise constant voltage regulation with +/-5% accuracy
• Features EcoSmart technology for multi-mode control to enhance efficiency across load ranges
• Includes comprehensive protection mechanisms such as output overvoltage, undervoltage, and thermal shutdown

AC DC Converters, Offline Switchers Applications

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

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix (e.g., K, TL) against the manufacturer datasheet to confirm packaging format and tape-and-reel specifications. Ensure the selected variant matches the required operating temperature range and pin configuration. Cross-reference the part number with official Power Integrations documentation to validate RoHS compliance and humidity sensitivity classifications before finalizing procurement orders.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring high power density and minimal external components. The integrated 725 V MOSFET simplifies derating requirements compared to lower voltage alternatives. Consider the fixed 132 kHz frequency when designing transformer parameters to balance size and EMI performance. Verify that the target application falls within the supported 9 W to 90 W power range for optimal regulation accuracy.

AC DC Converters, Offline Switchers Part Context

This device belongs to the LinkSwitch-HP family from Power Integrations, designed for high-efficiency offline power conversion. The series combines advanced control algorithms with robust power switching capabilities in a single package. It targets applications demanding strict regulatory compliance and reduced bill-of-materials costs through integrated functionality and primary-side sensing techniques.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution guides for compatible variants within the LinkSwitch-HP or LinkSwitch-TN families. Verify pinout compatibility and electrical parameter alignment before replacing existing inventory.