LNK419EG

LED Driver IC Overview

The LNK419EG is an LED driver IC from the LinkSwitch-PH family, designed for off-line PWM dimmable constant current applications. It integrates a high-voltage power switch and control circuitry in a single package. The device supports an input voltage range of 36 V to 725 V and delivers an output current of 3.26 A. Operating at a frequency of 66 kHz, it utilizes a flyback topology with internal switching capabilities. The component is housed in an eSIP-7C package and is rated for junction temperatures between -40°C and +150°C.

LED Driver IC Feature Summary

• Integrates a high-voltage power switch and control logic for simplified design
• Supports PWM dimming functionality for lighting applications
• Features built-in system-level protection mechanisms

LED Driver IC Applications

• Off-line LED lighting drivers
• PWM dimmable constant current sources
• Flyback converter topologies

LED Driver IC Procurement Notes

Verify the specific suffix 'EG' against the manufacturer's latest documentation to confirm pinout compatibility and packaging details. Ensure that the selected variant meets all required environmental standards and thermal specifications for the intended application environment before finalizing procurement decisions.

LED Driver IC Selection Notes

Select this component for designs requiring integrated high-voltage switching and PWM dimming support. Consider the eSIP-7C package constraints and the 3.26 A output current capability when determining thermal management strategies. Verify that the 66 kHz operating frequency aligns with EMI requirements and transformer design parameters.

LED Driver IC Part Context

The LNK419EG belongs to the LinkSwitch-PH series by Power Integrations, which focuses on highly integrated solutions for LED lighting. This series combines power switching and control functions to reduce external component count. The part is distinct from the TOPswitch or InnoSwitch families, specifically targeting constant current LED driver applications rather than general-purpose AC-DC conversion.

LED Driver IC Replacement Considerations

Publicly confirmed direct substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential alternatives within the same product family.