FAN7544MX

Overview

The FAN7544MX is a fluorescent light ballast controller manufactured by Fairchild Semiconductor, designed for electronic ballast applications. It operates within a frequency range of 48.2kHz to 57.8kHz and utilizes an 8-SOIC package. The device provides simple and high-performance control functions optimized for minimum board space requirements.

Feature Summary

• Provides simple and high-performance electronic ballast control functions
• Optimized for electronic ballasts requiring minimum board space
• Operates at frequencies between 48.2kHz and 57.8kHz

Applications

• Driving cold cathode fluorescent lamps (CCFL)
• Liquid crystal display (LCD) backlight systems

Procurement Notes

Verify the manufacturer designation, as the component is associated with both Fairchild Semiconductor and ON Semiconductor due to corporate acquisition history. Confirm the specific datasheet version matches the required operational specifications. Ensure the 8-SOIC package variant aligns with your PCB footprint design constraints before finalizing procurement.

Selection Notes

Select this component for applications requiring a dedicated ballast controller with a fixed operating frequency range. It is suitable for designs where board space is limited. Consider compatibility with CCFL drivers and ensure the input voltage conditions meet the system requirements for stable operation within the specified frequency band.

Part Context

This part belongs to the family of power management integrated circuits focused on lighting control. It serves as a specialized controller for managing the ignition and regulation of fluorescent lamps in display backlights. The device integrates necessary control logic to simplify the external circuit design compared to discrete solutions.

Replacement Considerations

Check for direct substitutes from ON Semiconductor under the same part number due to brand transition. Verify pinout and electrical characteristics against alternative ballast controllers if sourcing from different manufacturers. Ensure frequency ranges match to avoid compatibility issues with existing lamp assemblies.