LNK413LG

LED Driver IC Overview

The LNK413LG is a LinkSwitch-PH family integrated circuit designed for high-performance, cost-effective LED driver applications. It integrates a 700V power MOSFET with a current-mode controller and high-voltage switched current source. The device operates from universal AC mains input voltages and provides constant current regulation for LED strings. Key electrical parameters include an operating frequency range of 26 kHz to 132 kHz, a peak drain current capability of 1.5 A, and a supply voltage range of 8.5 V to 26 V. It supports dimming control via the DIM pin and includes comprehensive protection features such as cycle-by-cycle current limiting, thermal shutdown, and open/short circuit detection.

LED Driver IC Feature Summary

• Integrates a 700V power MOSFET with a current-mode controller for compact design
• Provides constant current regulation suitable for LED string driving
• Supports analog or PWM dimming control through the dedicated DIM pin
• Includes built-in thermal shutdown and open/short circuit protection mechanisms

LED Driver IC Applications

• General illumination LED drivers
• Commercial lighting fixtures
• Residential LED bulbs and downlights
• Industrial LED lighting systems

LED Driver IC Procurement Notes

Verify the specific suffix 'LG' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the intended PCB footprint and soldering profile. Cross-reference the part number with the latest obsolescence notices from Power Integrations to confirm availability status before finalizing procurement plans.

LED Driver IC Selection Notes

Select this component for designs requiring high efficiency and minimal external components in LED lighting applications. Consider the 700V breakdown voltage for direct mains connection without bulky transformers. Evaluate the thermal performance requirements based on the expected ambient temperature and enclosure constraints, as the device relies on board-level heat dissipation for thermal management during continuous operation.

LED Driver IC Part Context

The LNK413LG belongs to the LinkSwitch-PH family from Power Integrations, which is engineered for high-power-factor LED drivers. This series replaces traditional discrete solutions by integrating power switching and control logic into a single package. It is part of a broader portfolio aimed at reducing system complexity and improving reliability in solid-state lighting products compared to older TopSwitch generations.

LED Driver IC Replacement Considerations

No direct pin-to-pin replacement is officially confirmed for the LNK413LG in public documentation. Designers should evaluate newer LinkSwitch-PH variants or LinkSwitch-TN families, but these require schematic and layout modifications due to differences in pinout and control characteristics.