ST L6520 14W或25W T5微型镇流器参考设计方案

ST公司的L6520是一款可以驱动BJT管和MOSFET管的高集成镇流控制器，按照重要安全性和最低功耗规则，在确保最大可靠性的同时提供必须的保护功能。由于可以采用BJT开关管，在性能不变的情况下极大地减少了系统的成本。该芯片可工作在没有PFC,被动PFC和主动PFC三种情况下，提供了更多的灵活性。本文首先介绍芯片的简介、特性、内部框图及应用领域，并给出相应设计方案的设计原理图、元器件列表及制板图。

The L6520 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.
..

查看全文