IW380-12BB

Overview

The iW380-12BB is a high-performance second-stage step-down DC/DC controller designed for commercial LED lighting applications. It supports input voltages up to 78V and delivers a maximum output power of 150W. The device features a fixed switching frequency of 400kHz and maintains LED current accuracy within 3%. It offers a dimming range from 0.0625% to 100%, with a resolution of 0.0625%. The component operates within a temperature range of -40°C to +85°C and is housed in a 10-pin SOIC package.

Feature Summary

• Implements True DC Dimming technology for flicker-free operation
• Supports DALI-2 compliance for advanced digital lighting control
• Integrates comprehensive protection including input overvoltage, overcurrent, and thermal shutdown

Applications

• Commercial solid-state lighting systems
• Second-stage AC/DC LED drivers
• High-resolution dimmable lighting fixtures

Procurement Notes

Verify availability status as supply may be limited or subject to factory special orders. Confirm the specific suffix matches the required pinout and functionality. Ensure the ordering quantity aligns with carrier type requirements, such as tape and reel specifications. Validate that the component meets all necessary environmental and safety certifications for the target market before finalizing procurement.

Selection Notes

Select this controller for designs requiring high-voltage buck conversion in commercial lighting. It is suitable for applications needing precise current regulation and advanced dimming protocols like DALI-2. Consider the 400kHz switching frequency for component size optimization. Ensure the external circuitry supports the 78V input capability and 150W power limit.

Part Context

The iW380 series belongs to Renesas' portfolio of LED driver ICs focused on high-performance commercial lighting solutions. This specific model integrates high-resolution dimming capabilities to meet stringent visual quality standards. It is engineered to function effectively as a secondary stage converter in complex AC/DC power architectures.

FAQ

Does the iW380-12BB support analog and PWM dimming?

Yes, the device supports analog dimming, PWM dimming, and 0-10V dimming functions.

What is the maximum input voltage for this controller?

The optimal input voltage is 78V, allowing it to operate as a second-stage converter from higher voltage sources.