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L6574 CFL/TL Ballast Driver Preheat and Dimming Evaluation Board
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%.
Key Features
Description | Version | Size | |
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DB1929: CFL/TL ballast driver preheat and dimming demonstration board based on the L6574 | 1.0 | 393 KB |
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AN993: Electronic ballast with PFC using L6574 and L6561 | 10.3 | 1 MB |
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PCB layout | 1.0 | 84 KB |
Description | Version | Size | |
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EVAL6574B schematic | 1.0 | 102 KB |
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Evaluation products license agreement | 1.4 | 128 KB |
Part Number | Core Product | Marketing Status | Unit Price (US$) * | Quantity | ECCN (EU) | ECCN (US) | Country of Origin | More info | Order from ST | Order from Distributors |
---|---|---|---|---|---|---|---|---|---|---|
EVAL6574B | L6574 | Active : Product is in volume production | - | - | NEC | EAR99 | - | MORE INFO | DISTRIBUTOR AVAILABILITY |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
---|---|---|---|---|---|
EVAL6574B | Active | CARD | Industrial | Not compliant |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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