NCL30082ADMR2G

Overview

The NCL30082ADMR2G is a dimmable quasi-resonant primary side current-mode controller designed for LED lighting applications. It operates in flyback topology with an adjustable output voltage and supports up to 500 mA output current. The device functions within a supply voltage range of 8.8 V and switches at a frequency of 65 kHz. It features thermal foldback protection and is housed in an SOIC-8 package, operating between -40°C and +125°C.

Feature Summary

• Enables precise primary-side LED current regulation without secondary feedback circuits or optocouplers.
• Supports both analog and digital dimming inputs for flexible control schemes.
• Integrates thermal foldback protection to manage junction temperature limits.

Applications

• Isolated flyback AC-DC offline switchers
• Non-isolated buck-boost constant current topologies
• Dimmable LED lighting systems

Procurement Notes

Verify the specific suffix 'ADM' against the official datasheet to confirm pinout and electrical characteristics match the design requirements. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this controller for designs requiring high efficiency through quasi-resonant switching and simplified bill of materials by eliminating optocouplers. It is suitable for applications needing programmable overvoltage protection via the SD pin and robust thermal management capabilities.

Part Context

This component belongs to the NCL30082 series of LED drivers. Other variants in the family include NCL30082DDR2G and NCL30082BDR2G. These parts share core functionality but may differ in packaging options, ordering suffixes, or specific manufacturing revisions as defined by onsemi.

Replacement Considerations

NCL30082DDR2G is listed as a parameter-equivalent alternative. Verify pin compatibility and electrical specifications before substitution.