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48 V - 130 W high efficiency converter with PFC for LED street lighting applications based on L6562 and L6599 - European version
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The STEVAL-ILL052V1 demonstration board implements a 130 W LED power supply for street lighting.

The circuit is composed of two stages: a front-end PFC using the L6562AT and an LLC resonant converter based on the L6599AT.

What distinguishes this design is its very high efficiency, extended European input mains range (177-277 VAC) operation, and long-term reliability.

Because reliability MTBF (mean time between failures) in power supplies is typically affected by the high failure rate of electrolytic capacitors, unless using very high-end, expensive types, the STEVAL-ILL052V1 demonstration board offers an innovative design approach using film capacitors from EPCOS in place of electrolytic capacitors.

Thanks to the high efficiency achieved, no heatsinks are required.

The STEVAL-ILL052V1 demonstration board also provides protection against overload or short-circuit, open-loop by each stage, or input overvoltage, with auto-restart.

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Errata Sheet
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Data Brief

Key Features

  • Extended European input mains range: 177 to 277 VAC - frequency 45 to 55 Hz
  • Output voltage: 48 V at 2.7 A
  • Long-life electrolytic capacitors not used
  • Mains harmonics: in accordance with EN61000-3-2 Class C
  • Efficiency at full load: greater than 90%
  • EMI: in accordance with EN55022 Class B
  • Safety: double insulation, in accordance with EN60950, SELV
  • Dimensions: 75 x 135 mm, 30 mm maximum component height
  • No heatsinks needed
  • PCB: single side, 35 μm, FR-4, mixed PTH/SMT
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1774: 48 V - 130 W high efficiency converter with PFC for LED street lighting applications based on L6562 and L6599 - European version
1.0 79 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-ILL052V1 geber files
1.0 352 KB

Bill of Materials

Description Version Size
2.0.0 11 KB
2.1 11 KB

Schematic Pack

Description Version Size
STEVAL-ILL052V1 schematics
1.0.0 78 KB
STEVAL-ILL052V1 schematics
1.0 78 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ILL052V1ActiveL6562; L6599Buy Direct177.62Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order

(*) 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
(**) The Material Declaration forms available on 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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