L6521

Lighting, Ballast Controllers Overview

The L6521 is a highly integrated ballast controller designed for Compact Fluorescent Lamps (CFL) and Tubular Lamps (TL). It operates within a supply voltage range of 10.5 V to 18.5 V and supports surface mount installation in an SOIC-8 package. The device functions at a frequency of approximately 47.2 kHz and withstands maximum operating temperatures up to +150°C. It integrates half-bridge driver capabilities with BJT and FET control features, serving as a complete solution for low-voltage smart ballast applications.

Lighting, Ballast Controllers Feature Summary

• Highly integrated design combining ballast control and driver functions for TL and CFL lamps
• Built-in half-bridge driver with BJT and FET control logic
• Optimized for low-voltage smart ballast architectures

Lighting, Ballast Controllers Applications

• Compact Fluorescent Lamp (CFL) ballast systems
• Tubular Lamp (TL) lighting controllers
• Low-voltage smart ballast circuits

Lighting, Ballast Controllers Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm the specific revision level matches your design requirements. Note that this part may be discontinued; check current lifecycle status before finalizing procurement plans. Ensure storage conditions comply with humidity sensitivity ratings specified in the datasheet to prevent damage prior to assembly.

Lighting, Ballast Controllers Selection Notes

Select the L6521 when designing compact lighting solutions requiring integrated control and driving capabilities. Its SOIC-8 package suits space-constrained PCB layouts. Consider its operating temperature range and voltage specifications to ensure compatibility with your power supply and thermal management strategy. Evaluate its integration level against discrete component alternatives to simplify bill of materials and reduce design complexity.

Lighting, Ballast Controllers Part Context

The L6521 belongs to STMicroelectronics' family of lighting controllers, specifically targeting fluorescent lamp technologies. It complements other devices like the L6520 by offering specialized features for CFL and TL applications. This component represents a consolidated approach to ballast design, reducing the need for multiple discrete drivers and controllers in standard lighting fixtures.

Lighting, Ballast Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official STMicroelectronics resources for end-of-life notifications and recommended alternative components.