LNK404EG

LED Driver IC Overview

The LNK404EG is a LinkSwitch-4 family AC/DC converter IC designed for offline flyback power supplies. It integrates a high-voltage MOSFET and controller in an SOIC-8 package. The device supports universal input voltages from 85 VAC to 265 VAC. It delivers up to 12 W of output power with a fixed switching frequency of 65 kHz. The component operates within a temperature range of -25°C to +125°C and features cycle-by-cycle current limiting.

LED Driver IC Feature Summary

• Integrates a high-voltage power MOSFET and control logic into a single compact package
• Provides constant voltage and constant current regulation modes
• Includes built-in protection mechanisms such as over-temperature shutdown and cycle-by-cycle current limiting

LED Driver IC Applications

• Universal input adapters
• Standby power supplies
• Battery chargers

LED Driver IC Procurement Notes

Verify the specific suffix 'EG' against official manufacturer documentation to confirm pinout compatibility and thermal characteristics. Ensure that the ordering information matches the exact package type and tape-and-reel specifications required for your assembly process. Cross-reference the datasheet revision date to validate all electrical parameters before finalizing procurement.

LED Driver IC Selection Notes

Select this component for designs requiring a highly integrated solution for low-power offline applications. The LinkSwitch-4 architecture simplifies design by eliminating external bias windings. Consider the thermal performance requirements when choosing between surface-mount and through-hole packages, as heat dissipation impacts maximum power capability.

LED Driver IC Part Context

This part belongs to the LinkSwitch-4 series from Power Integrations, which targets cost-sensitive and space-constrained power supply designs. The series is known for combining high reliability with minimal external component counts. It serves as a successor to earlier LinkSwitch generations, offering improved efficiency and tighter regulation capabilities.

LED Driver IC Replacement Considerations

Consult official substitution guides for compatible parts within the LinkSwitch family. Verify pin-to-pin compatibility and electrical parameter equivalence before replacing existing components in established designs.