ST Life.augmented


18 W single-stage offline LED driver based on the L6562A (European version)

The STEVAL-ILL027V2 implements a non-isolated, soft-switched, single-stage, high power factor offline LED driver.

The buck-boost converter is chosen for this application due to its simplicity and low cost.

The converter operates with constant peak current for constant power control and in transition mode (boundary mode between CCM and DCM), to achieve soft switching, using the L6562A controller.

This single-stage buck-boost converter provides a cost-effective solution for offline non-isolated LED applications and it also has open load and short-circuit protection.

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Errata Sheet
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Data Brief

Key Features

  • Input voltage 190 Vac to 295 Vac
  • Provides 18 W constant power to HBLED
  • Able to drive 14 to 20 HBLED in series
  • Soft switching
  • LED open-circuit protection
  • LED short-circuit protection
  • Power factor > 0.8
  • Efficiency > 87 %
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1226: 18 W single-stage offline LED driver based on the L6562A (European version)
1.1 80 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
Gerber files for STEVAL-ILL027V2 board
1.0 22 KB

Bill of Materials

Description Version Size
BOM for STEVAL-ILL027V2 board
1.0 79 KB

Schematic Pack

Description Version Size
Board schematics for STEVAL-ILL027V2 boards
1.0 29 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ILL027V2NRNDL6562ADBuy Direct60.02Distributor reported inventory date: 2016-02-09
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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