LNK414LG

LED Driver IC Overview

The LNK414LG is a highly integrated AC/DC offline switcher from the LinkSwitch-PH series, designed for flyback topology applications. It functions as an LED driver IC capable of delivering up to 15 W at input voltages between 85 VAC and 265 VAC. The device integrates power factor correction and accurate constant-current output in a single stage. Key electrical parameters include a switching frequency of 66 kHz and a maximum output current of 1.02 A per channel. It operates within a junction temperature range of -40°C to 150°C.

LED Driver IC Feature Summary

• Integrates power factor correction and constant-current control in a single-stage design
• Utilizes a compact 7-SSIP package with an exposed pad to minimize board space
• Supports wide-range universal AC input voltage operation

LED Driver IC Applications

• LED lighting systems
• Offline AC/DC power supplies
• General illumination drivers

LED Driver IC Procurement Notes

Verify component authenticity through authorized distributors or certified suppliers. Confirm the part status, as this model may be obsolete. Request original manufacturer documentation to validate specifications against counterfeit risks. Ensure packaging integrity matches the 7-SSIP form factor. Cross-reference ordering suffixes to confirm pinout compatibility before procurement.

LED Driver IC Selection Notes

Select this component for designs requiring high integration and simplified bill of materials. It is suitable for applications needing both power factor correction and regulated LED current. Consider the thermal performance given the exposed pad requirement. Evaluate the 66 kHz frequency for EMI constraints. Verify that the 1.02 A output current meets the specific load requirements of the target LED array.

LED Driver IC Part Context

This device belongs to the LinkSwitch-PH family, which combines primary-side regulation with power factor correction. It is engineered to reduce component count in offline LED driver designs. The series targets cost-sensitive applications where board space and efficiency are critical. It replaces discrete solutions by integrating MOSFET, controller, and protection circuits into one package.

LED Driver IC Replacement Considerations

Check for parametric equivalents if the LNK414LG is unavailable. Verify pin-to-pin compatibility with alternative models from the same manufacturer. Ensure substitute parts meet the same 66 kHz frequency and 1.02 A current limits. Confirm that replacement packages match the 7-SSIP dimensions.