IW3638-01

Overview

The iW3638-01 is a high-power step-down LED driver switch controller manufactured by Renesas Electronics. It supports a wide range of PWM dimming interfaces for solid-state lighting applications. The device operates within an input voltage range of 90 to 305 V and delivers a maximum output power of 90 W. It features a switching frequency between 72 and 90 kHz and achieves a power factor correction greater than 0.9. The component provides LED current accuracy of 3% and supports a dimming range from 1% to 100%. It is housed in an SOIC-8 package with a pitch of 1.27 mm and functions as a single-stage controller.

Feature Summary

• Supports a wide range of PWM dimming interfaces for flexible control
• Integrates protection features including overvoltage, overcurrent, UVLO, and OTP
• Provides accurate and calibrated DIM1 interface functionality

Applications

• Solid-state lighting systems
• Commercial lighting fixtures
• High-power LED drivers

Procurement Notes

Verify availability status directly with the manufacturer or authorized distributors, as supply may be limited or subject to special order requirements. Confirm RoHS compliance details and specific packaging options such as reel or cut tape configurations prior to procurement. Ensure that the selected variant matches the required pinout and functional specifications for the intended design implementation.

Selection Notes

Select this component for designs requiring a single-stage solution with integrated power factor correction. Consider its compatibility with various PWM dimming protocols and its capability to handle high input voltages up to 305 V. Evaluate the thermal performance and protection features against the specific environmental conditions and safety standards required for the target application.

Part Context

The iW3638-01 belongs to the iW3638 series of high-power LED drivers from Renesas Electronics. This series is designed for commercial and industrial lighting applications where high efficiency and reliable dimming performance are critical. The component integrates advanced digital control features to simplify system design while maintaining high power quality and light output stability.

Replacement Considerations

Check for direct substitutes within the iW3638 family or compatible single-stage LED drivers from Renesas. Verify pin compatibility and electrical parameters before substitution.

FAQ

What type of dimming interfaces does the iW3638-01 support?

It supports a wide range of PWM dimming interfaces.

Is the iW3638-01 a single-stage or multi-stage LED driver?

It is a single-stage LED driver controller.