ST Life.augmented


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%.

pdf Please read
Errata Sheet
pdf データシート
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





Technical Documentation

Product Specifications

Description Version Size
DB1929: CFL/TL ballast driver preheat and dimming demonstration board based on the L6574
1.0 393 KB

Application Notes

Description Version Size
AN993: Electronic ballast with PFC using L6574 and L6561
10.3 1,402 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
PCB layout
1.0 84 KB

Schematic Pack

Description Version Size
EVAL6574B schematic
1.0 103 KB

サンプル& 購入

製品型名 Marketing StatusCore ProductOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
EVAL6574BActiveL6574-Distributor reported inventory date: 2016-02-12
Distributor NameRegionStockMin. order
Not compliant-

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(**)弊社ホームページで入手できるMaterial Declaration(材料宣誓書)のフォームは、各パッケージ・タイプで最も一般的に使用されるパッケージに基づいた包括的な文書です。そのため、特定のデバイスについて100%正確ではない可能性があります。特定のデバイスに関する情報については、 弊社セールスオフィス にお問合せ下さい。
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