ISL1903FAZ-TK

Overview

The ISL1903FAZ-TK is a dimmable buck LED driver IC designed for high-power LEDs. It functions as an AC-DC offline switcher with integrated triac dimming capability. The device operates in a PDSO16 package and supports brightness control/dimming features. It is classified under LED lighting drivers and is part of the ISL1903 series.

Feature Summary

• Supports triac dimming functionality for compatible lighting systems
• Integrated AC-DC offline switching architecture
• Designed specifically for high-power LED applications

Applications

• High-power LED lighting fixtures
• Triac-dimmable general illumination systems
• Offline AC-DC LED driver designs

Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified partners. Confirm package integrity and pin alignment against official datasheet specifications. Check manufacturing date codes and lot traceability records to ensure compliance with quality standards. Validate RoHS status and environmental declarations prior to integration into final assemblies.

Selection Notes

Select this component for designs requiring integrated triac dimming without external controllers. Ensure input voltage ranges match the specific AC line requirements. Verify thermal management capabilities align with the intended high-power LED load. Consider the PDSO16 package constraints for PCB layout and heat dissipation strategies during the initial design phase.

Part Context

This part belongs to the ISL1903 family of LED drivers from Renesas Electronics, formerly Intersil. It complements other variants like the ISL1904FAZ-T7A within the same product line. The series focuses on efficient, compact solutions for modern LED lighting applications requiring advanced dimming controls.

Replacement Considerations

Check for direct substitutes such as ISL1903FAZ or ISL1902FAZ-T7A if available. Verify functional equivalence regarding dimming protocols and output configurations before substitution.