L6520

Lighting, Ballast Controllers Overview

The L6520 is a half-bridge controller designed for fluorescent lamp ballasts. It operates with a fixed frequency of 46kHz to 47.2kHz and supports supply voltages from 10.5V to 18.5V. The device integrates a BJT driver and FET output stage within an 8-SOIC package. It functions as a CFL/TL controller without dimming capabilities, drawing 8mA of supply current. The component is rated for operating temperatures between -25°C and 85°C, with a maximum junction temperature of +150°C.

Lighting, Ballast Controllers Feature Summary

• Integrates half-bridge driver and power FET output stage
• Fixed frequency operation for fluorescent lamp ballasts
• Supports both tube (L6520) and tape-and-reel (L6520TR) packaging

Lighting, Ballast Controllers Applications

• Compact Fluorescent Lamp (CFL) ballast control
• Tubular Fluorescent Lamp (TL) ballast control
• Half-bridge resonant converter topologies

Lighting, Ballast Controllers Procurement Notes

Verify the specific suffix (e.g., TR for tape-and-reel) against the required packaging format. Confirm availability status as the base part may be discontinued or have limited stock depending on the distributor region. Ensure the 8-SOIC package dimensions match the PCB footprint requirements before finalizing procurement.

Lighting, Ballast Controllers Selection Notes

Select this component for applications requiring a dedicated half-bridge controller for fluorescent lighting. Verify that the fixed frequency range aligns with the transformer design. Consider the L6520TR variant if automated surface-mount assembly is required instead of manual tube placement.

Lighting, Ballast Controllers Part Context

The L6520 belongs to STMicroelectronics' family of display drivers and controllers, specifically categorized under lighting and ballast controllers. It is distinct from reset supervisors like the STM6520 or microcontrollers in the STM8 and STM32 families.

Lighting, Ballast Controllers FAQ

Does the L6520 support dimming functionality?

No, the L6520 does not include dimming features; it is designed for standard on/off operation.

What is the difference between L6520 and L6520TR?

The primary difference is packaging: L6520 is supplied in tubes, while L6520TR is supplied in tape-and-reel format for automated assembly.