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L6574 CFL/TL Ballast Driver Preheat and Dimming Evaluation Board
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This design was developed to drive a TL fluorescent lamp of up to 58 W. It is composed of two sections: the PFC using the L6561 controller, and the ballast based on the L6574. The application includes a current feedback that can be used to control the power (and, if necessary, the dimming function) by varying the switching frequency during normal lamp operation. The application also features safety circuitry which activates when an open load or faulty lamp ignition is detected. The PFC pre-regulator allows connection of the application to a wide input voltage range (85 Vac to 265 Vac) providing a Power Factor higher than 0.99 and a THD lower than 10%.

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Errata Sheet
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Data Brief

Key Features

  • Dimmable fluorescent lamp ballast
  • Multiple T8 lamps application
  • Wide range input (85 Vac – 265 Vac)
  • PF > 0.99, THD < 10%
  • Fault ignition protection
  • Lamp absence detection



图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB1929: CFL/TL ballast driver preheat and dimming demonstration board based on the L6574
1.0 393 KB

Application Notes

描述 版本 大小
AN993: Electronic ballast with PFC using L6574 and L6561
10.3 1,402 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
PCB layout
1.0 84 KB

Schematic Pack

描述 版本 大小
EVAL6574B schematic
1.0 103 KB

样品 & 购买

产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
EVAL6574BActiveL6574-Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order
Not compliant-

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(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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