IW3637-03

Overview

The iW3637-03 is an off-line buck LED driver controller from the iW3637 series, designed for solid-state lighting applications. It supports a wide range of PWM dimming interfaces and operates within an optimal input voltage range of 90 to 305 V. The device features PrimAccurate technology for accurate primary-side regulation without requiring an optocoupler. It includes protection mechanisms such as overvoltage protection (OVP), overcurrent protection (OCP), under-voltage lockout (UVLO), and overtemperature protection (OTP).

Feature Summary

• Supports wide range of PWM dimming interfaces for flexible control.
• Utilizes PrimAccurate technology for precise current regulation.
• Integrates comprehensive protection features including OVP, OCP, UVLO, and OTP.

Applications

• Solid-state lighting systems
• Commercial LED drivers
• Off-line buck LED driver controllers

Procurement Notes

Verify availability status carefully, as Mouser currently indicates this part number is not sold in certain regions. The product may be subject to limited sales or factory special orders. Confirm RoHS compliance details and check for any specific shipping restrictions applicable to your location before placing orders. Ensure the supplier provides valid documentation regarding the component's authenticity and condition.

Selection Notes

Select this component for designs requiring a single-stage off-line buck topology with integrated dimming capabilities. It is suitable for applications needing high accuracy in primary-side regulation while minimizing bill-of-materials cost by eliminating secondary sensing components. Consider its operating temperature range and protection features when designing for robust commercial lighting environments.

Part Context

The iW3637-03 belongs to the iW3637 series of LED lighting drivers manufactured by Renesas Electronics. This series focuses on providing efficient and cost-effective solutions for solid-state lighting. The component is classified under LED Lighting Drivers and Driver ICs, serving as a key element in modern power management for LED arrays.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Users should consult official Renesas resources for potential cross-references or newer revisions within the iW3637 family if this specific suffix is unavailable.

FAQ

What type of dimming does the iW3637-03 support?

It supports a wide range of PWM dimming interfaces.

Does the iW3637-03 require an optocoupler for regulation?

No, it uses PrimAccurate technology for primary-side regulation, eliminating the need for an optocoupler.