LNK520GN-TL

AC DC Converters, Offline Switchers Overview

The LNK520GN-TL is a LinkSwitch family AC/DC converter IC designed for off-line applications. It integrates a 700 V power MOSFET, high-voltage switched current source, and control logic into an SMD-8 package. The device supports universal input voltages from 85 VAC to 265 VAC. Key electrical parameters include a switching frequency of 42 kHz, a maximum duty cycle of 80%, and a quiescent supply current of 750 uA. It delivers up to 3 W at 85-265 VAC or 4 W at 230 VAC. The output voltage is specified at 5.6 V. Operating temperatures range from -40 °C to +150 °C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 700 V power MOSFET with proprietary control logic for simplified design
• Optimized for bias winding feedback to reduce electromagnetic interference
• Provides system-level thermal protection and current limiting
• Supports constant voltage and constant charging profiles

AC DC Converters, Offline Switchers Applications

• Independent chargers and adapters requiring reduced EMI
• Battery chargers for mobile phones and PDAs
• Consumer electronics such as MP3 players and digital cameras
• Standby power supplies for televisions

AC DC Converters, Offline Switchers Procurement Notes

Verify the NRND status before implementation, as this component is not recommended for new designs. Confirm the SMD-8 package variant matches your PCB footprint requirements. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Check for moisture sensitivity classification prior to soldering processes.

AC DC Converters, Offline Switchers Selection Notes

Select this part when designing cost-sensitive AC/DC converters that require EMI optimization through bias winding feedback. It is suitable for replacing linear solutions in systems where space reduction and weight savings are priorities. Consider the 42 kHz switching frequency for specific transformer design constraints.

AC DC Converters, Offline Switchers Part Context

This component belongs to the LinkSwitch series by Power Integrations. It is part of a family of integrated offline switcher ICs designed to minimize external component count. The GN suffix indicates a Green (RoHS compliant) lead-free package. The TL suffix typically denotes tape and reel packaging configuration.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.