LNK6415D-TL

AC DC Converters, Offline Switchers Overview

The LNK6415D-TL is a LinkSwitch-3 AC/DC converter from Power Integrations, designed for low-power constant voltage and constant current applications. It integrates a 725V power MOSFET, high-voltage switched current source, and ON/OFF control state machine. The device supports an input voltage range of 85-265 VAC and delivers up to 4.5 W output power. It operates at a programmable switching frequency of up to 85 kHz. The component features comprehensive fault protection including current limiting, open loop detection, over temperature shutdown, and short circuit protection.

AC DC Converters, Offline Switchers Feature Summary

• Eliminates the need for optocouplers and secondary side CV/CC control circuitry
• Integrates a 725V power MOSFET with novel ON/OFF control state machine
• Provides accurate output voltage regulation and current flow control
• Compensates for transformer inductance tolerances and input line variations

AC DC Converters, Offline Switchers Applications

• Low power CV/CC charger designs
• Adaptive BJT LED drivers
• Battery chargers requiring isolated AC/DC conversion

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix TL against official Power Integrations documentation to confirm reel packaging specifications. Confirm RoHS compliance status through the manufacturer's latest product data sheet. Ensure the SO-8C-8 package variant matches your PCB footprint requirements. Cross-reference the part number with authorized distributors to validate current availability and authenticity.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring simplified topology by removing secondary control loops. The integrated compensation for cable voltage drop and line variations reduces external component count. Consider the 85 kHz switching frequency for transformer size optimization. Ensure the 4.5 W power rating meets the load requirements without exceeding thermal limits in the SO-8C-8 package.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LinkSwitch-3 family, which simplifies AC/DC converter designs by integrating primary-side regulation. Unlike previous generations, it eliminates the need for optocouplers and error amplifiers. The series is characterized by high integration levels and robust fault protection mechanisms suitable for cost-sensitive consumer electronics.

AC DC Converters, Offline Switchers Replacement Considerations

Check for direct substitutes within the LinkSwitch-3 family such as LNK6406D or LNK6417D if power ratings differ. Verify pin compatibility and package dimensions before substitution. Review datasheets for differences in switching frequency and fault protection thresholds.