ISL1902FAZ

Overview

The ISL1902FAZ is a full-featured, dimmable AC mains LED driver IC with integrated Power Factor Correction (PFC). It functions as an offline switcher supporting multiple topologies including Flyback, Forward, SEPIC, and Step-Up (Boost). The device provides one output and supports both analog and PWM dimming methods. It is housed in a 24-QSOP package.

Feature Summary

• Integrated PFC for high power factor performance
• Supports multiple converter topologies
• Compatible with analog and PWM dimming signals

Applications

• High power LED lighting systems
• AC mains powered LED drivers
• General illumination applications requiring dimming control

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm package integrity and pin alignment against the official datasheet specifications. Ensure storage conditions meet manufacturer guidelines to prevent degradation of the semiconductor junction before installation.

Selection Notes

Select this component for designs requiring integrated PFC and multi-topology flexibility in AC mains LED applications. Evaluate compatibility with required dimming protocols. Consider thermal management requirements associated with the QSOP package and expected load currents during system design.

Part Context

This part belongs to the ISL1902 series of LED drivers from Renesas Electronics. It is designed specifically for offline AC/DC conversion in lighting applications. The series emphasizes efficiency and dimming capabilities for commercial and industrial LED fixtures.

Replacement Considerations

Check for direct cross-reference part numbers from Renesas or other manufacturers offering equivalent topology support and dimming features. Verify pin-to-pin compatibility and electrical parameter matching before substitution.