IW3688-21

Overview

The iW3688-21 is an AC/DC advanced digital power controller designed for single-stage dimmable LED drivers. It integrates a high-voltage startup circuit and a primary-side regulation architecture to eliminate the need for optocouplers, thereby reducing component count and improving reliability. The device supports universal AC input and provides precise output control suitable for various lighting applications.

Feature Summary

• Integrates high-voltage startup circuitry for simplified design
• Enables primary-side regulation without optocouplers
• Supports single-stage topology for compact implementation

Applications

• Single-stage dimmable LED drivers
• AC/DC LED lighting power supplies
• Compact LED driver modules

Procurement Notes

The iW3688-21 exhibits restricted supply status with Mouser Electronics currently not stocking this part number. Availability may be limited or subject to factory special orders. Verify current stock levels and lead times directly with authorized distributors before finalizing procurement plans.

Selection Notes

Select the iW3688-21 for designs requiring primary-side regulation in single-stage LED drivers. It is suitable for applications needing reduced bill of materials through optocoupler elimination. Ensure compatibility with required dimming protocols and input voltage ranges during the design phase.

Part Context

This component belongs to the iW3688 series of LED lighting driver ICs manufactured by Renesas Electronics Corporation (formerly Dialog Semiconductor). The series focuses on advanced digital power control solutions for efficient and cost-effective lighting systems.

Replacement Considerations

Consult official cross-reference documentation for verified substitute part numbers. Do not assume functional equivalence with other models in the iW3688 family without verifying pinout and electrical specifications.