LNK6664K

AC DC Converters, Offline Switchers Overview

The LNK6664K-TL is an AC/DC switching converter from the LinkSwitch-HP family, integrating a primary-side regulated controller and a high-voltage power MOSFET. It utilizes a flyback topology with Si technology. Key electrical parameters include a maximum output voltage of 50 V, output power of 22 W, and input voltage range of 85 VAC to 265 VAC. The device operates at a switching frequency of 132 kHz with a maximum duty cycle of 66%. It features a low operating supply current of 1 mA and supports an output current of 12.5 uA. The component is housed in an eSOP-12B surface-mount package and functions within a temperature range of -40°C to +125°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates primary-side regulation controller and high-voltage power MOSFET for simplified design
• Features EcoSmart multi-mode control to maximize efficiency across full load ranges
• Includes comprehensive protection mechanisms such as output short-circuit, overload, overvoltage, and thermal shutdown
• Supports fast AC reset and programmable shutdown delay time

AC DC Converters, Offline Switchers Applications

• LCD monitors and televisions
• Universal adapters
• Home appliances
• Embedded power supplies such as DVD players and set-top boxes
• Industrial power supplies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix (e.g., K-TL) against official datasheets to confirm packaging type and reel specifications. Ensure compatibility with required thermal management solutions given the eSOP-12B package constraints. Confirm RoHS compliance status and moisture sensitivity levels prior to assembly planning. Cross-reference pinout configurations with PCB layout requirements to prevent installation errors.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring precise constant voltage regulation within the 9W to 90W range. The integrated nature eliminates the need for secondary feedback components. Consider the 132 kHz switching frequency for transformer size optimization. Evaluate the 650V MOSFET rating against peak drain voltage stress. Verify that the primary-side regulation accuracy meets system tolerance requirements without optocouplers.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-HP series by Power Integrations. The family combines offline switcher functionality with advanced analog control schemes. It supports continuous conduction mode operation for improved performance. The series targets cost-sensitive applications while maintaining high energy efficiency standards through proprietary EcoSmart technology.

AC DC Converters, Offline Switchers Replacement Considerations

Consult official substitution lists for verified alternatives. Check pin-to-pin compatibility and electrical parameter overlaps before replacing.