IW3658-21F

Overview

The iW3658-21F is a single-stage SSL LED driver controller from the iW3658 series, manufactured by Renesas Electronics. It integrates a high-voltage MOSFET and is designed for dimmable retrofit lamps up to 15W. The device supports multiple dimming methods including TRIAC, leading-edge, and trailing-edge control. It features an integrated bootstrap diode and operates with a wide input voltage range suitable for universal AC mains applications.

Feature Summary

• Integrates a high-voltage power MOSFET to reduce component count
• Supports TRIAC, leading-edge, and trailing-edge dimming protocols
• Includes an internal bootstrap diode for gate drive efficiency

Applications

• Dimmable retrofit LED lamps
• Single-stage SSL LED drivers
• Universal AC mains powered lighting fixtures

Procurement Notes

Verify current availability status as supply may be limited or subject to factory special orders. Confirm RoHS compliance details through official documentation before integration. Ensure design compatibility with specific dimmer types supported by the controller.

Selection Notes

Select this component for designs requiring a compact, single-stage solution for low-power LED retrofitting. Consider the integrated MOSFET for simplified thermal management and reduced PCB area. Validate dimmer compatibility during the prototyping phase to ensure stable operation across different load conditions.

Part Context

Part of the iW3658 family, which focuses on cost-effective and high-performance LED driving solutions. The series targets the residential and commercial retrofit market, offering integrated power stages to streamline the design process for manufacturers of smart and traditional LED bulbs.

Replacement Considerations

Consult Renesas cross-reference tools for verified substitutes. Check pinout compatibility and electrical specifications against alternative single-stage controllers if sourcing constraints exist.