ST L6520 TL和CFL镇流器控制解决方案

ST公司的L6520/1是用于TL和CFL灯的高度集成镇流器控制器，能驱动双极晶体管（BJT）和MOSFET，具有预热起动和即时起动，过流/过压保护，扼流圈饱和控制等功能。本文介绍了L6520/1 主要特性，方框图，驱动BJT和MOSFET的应用案例，以及14 W / 21 W  EVAL6520-1421评估板主要特性，电路图和材料清单。

The L6520/1 is the first highly integrated ballast controller in the market able to drive both BJTs and MOSFETs, providing all the necessary protections to ensure the maximum reliability of the application in compliance with major safety and power consumption regulations.

By adopting BJTs switches in the application, the IC allows to replace more expensive MOSFETs, strongly reducing the system cost without compromises.

The IC represents also the best and cost effective solution to replace self oscillating solutions when the key requirement is the reliability of the ballast. The benefits are an increased MTBF and a reduction of the costs due to the return from the field.
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