IW380-01B

Overview

The iW380-01B is a high-performance, single-stage non-isolated buck DC/DC controller designed for commercial LED lighting applications. It supports a wide input voltage range from 22V to 78V and delivers up to 150W of output power with tight current regulation accuracy of ±3%. The device features Renesas' True DC dimming technology, providing a flicker-free dimming range from 0.0625% to 100% in precise 0.0625% steps. It operates at switching frequencies of 400kHz or 600kHz and includes an integrated MOSFET. The component is housed in a compact SOIC-10 package and supports multiple dimming interfaces including PWM, analog, and 0-10V inputs.

Feature Summary

• Supports high-resolution True DC dimming with zero ripple across the entire dimming range
• Integrates a high-side MOSFET for a compact single-stage solution
• Provides comprehensive protection against overvoltage, overcurrent, and thermal faults
• Compatible with DALI-2, MCU, and standard 0-10V dimmer protocols

Applications

• Commercial solid-state lighting systems
• Stage lighting fixtures requiring high-fidelity dimming
• Second-stage post-regulation in AC/DC lighting converters
• Stand-alone DC/DC LED driver designs

Procurement Notes

Verify availability status as supply may be limited or subject to factory special orders. Confirm the specific suffix designation matches the required switching frequency option (400kHz or 600kHz) during procurement. Ensure compliance with RoHS directives and check for any regional distribution restrictions before finalizing purchase orders.

Selection Notes

Select this component for designs requiring high-voltage buck conversion with exceptional dimming linearity. The integrated MOSFET reduces external component count compared to discrete solutions. Consider the SOIC-10 package constraints for thermal management when designing for maximum 150W output power. Verify that the application environment falls within the specified operating temperature range.

Part Context

The iW380-01B belongs to the iW380 family of LED drivers developed by Renesas Electronics. This series targets the commercial lighting market by addressing flicker issues common in traditional dimming methods. The device complements Renesas' broader portfolio of power management and control ICs used in industrial and consumer electronics.

Replacement Considerations

Check for alternative suffixes within the iW380 family that may offer different switching frequencies or pin-compatible variations. Consult official cross-reference documentation for verified substitutes from other manufacturers if original components are unavailable.