KA7541D

Lighting, Ballast Controllers Overview

The KA7541D is a dedicated fluorescent lamp electronic ballast controller manufactured by Fairchild Semiconductor. It operates within a supply voltage range of 11V to 30V and draws a typical supply current of 6 mA. The device generates a fixed operating frequency between 44kHz and 56kHz, suitable for standard fluorescent lighting applications. It supports through-hole mounting in an 8-DIP package with a width of 7.62mm. The component functions as a complete control solution for single-lamp ballasts without requiring external dimming circuitry.

Lighting, Ballast Controllers Feature Summary

• Integrated control logic for single fluorescent lamp ballasts
• Fixed frequency operation optimized for standard lighting loads
• Low power consumption design with minimal supply current requirements

Lighting, Ballast Controllers Applications

• Single-lamp fluorescent electronic ballasts
• General indoor lighting fixtures
• Commercial lighting systems

Lighting, Ballast Controllers Procurement Notes

Verify the specific suffix 'D' corresponds to the 8-DIP package configuration when sourcing. Confirm that the manufacturer status reflects discontinuation or obsolescence, as availability may be limited to existing stock or approved substitutes. Ensure the supplier provides traceability documentation for legacy components.

Lighting, Ballast Controllers Selection Notes

Select this component for designs requiring a simple, non-dimmable ballast controller. It is suitable for applications where a fixed frequency around 50kHz is acceptable. Consider the through-hole packaging constraint if PCB space allows. Evaluate alternative controllers if dimming capabilities or higher frequencies are required for the target application.

Lighting, Ballast Controllers Part Context

This part belongs to the family of dedicated ballast controllers designed for fluorescent lamps. It simplifies the design process by integrating necessary timing and drive functions into a single chip. The device was commonly used in conjunction with PFC controllers to meet energy efficiency standards in lighting systems.

Lighting, Ballast Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.