SSL2103T/1,518

Overview

The SSL2103T/1,518 is a Switched Mode Power Supply (SMPS) controller IC designed for dimmable LED lighting applications. It serves as an extension of the NXP SSL2101/SSL2102 platform, offering flexibility for AC/DC LED driver designs. The device supports phase-cut dimming when connected to rectified mains and includes dedicated circuitry to optimize dimming curves. It allows control of external power switches and bleeder transistilers for extended dimmer interoperability. Key electrical parameters include an input voltage of 230 V (AC), an output current of 1.4 A, and an output power of 15.7 W. It features two derived elements and utilizes a 14-pin SO package.

Feature Summary

• Supports flexible LED driver design in flyback mode with control of external power switches
• Provides optimized dimming curve integration for phase-cut dimmers connected directly to rectified mains
• Enables extended dimmer interoperability through control of external bleeder transistors
• Allows direct start-up from rectified mains voltage without auxiliary power supply

Applications

• Dimmable LED lighting fixtures
• E27 decorative LED lamps
• GU10 spotlights
• PARx LED lamps
• Non-dimmable retrofit SSL applications

Procurement Notes

Verify the specific ordering suffix '1,518' against official NXP documentation to confirm tape and reel packaging specifications. Ensure compatibility with required dimmer types for optimal performance. Cross-reference the pinout and thermal characteristics with the latest datasheet revision to avoid integration errors during PCB layout and assembly processes.

Selection Notes

Select this component for applications requiring high power flexibility beyond the fixed limits of SSL2101 or SSL2102. It is suitable for designers needing customizable power levels up to 25W via external switching. Consider its long operational life exceeding 75,000 hours under normal operating temperatures. Evaluate its broad dimming compatibility if integration with existing lighting control infrastructures is required.

Part Context

The SSL2103T/1,518 belongs to the NXP SSL210X family of AC/DC LED controllers. It extends the capabilities of the SSL2101 (up to 10W) and SSL2102 (up to 25W) platforms by providing greater design freedom. This series targets both dimmable and non-dimmable LED lamp markets, offering a robust solution for general illumination products such as E27 bulbs and GU10 spots with integrated high-voltage startup capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.