ST Life.augmented


A 93% efficient LED driver solution for the US market
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The STEVAL-ILL041V1 demonstration board implements an LED driver that meets the present requirements for the US market.

The STEVAL-ILL041V1 utilizes ST’s L6564 power factor controller in an unconventional circuit to regulate the input power to a step-down switching regulator. The circuit also compensates for variations in LED voltage drop, to maintain the average output current in a tight band over a wide range of line voltage and LED characteristics.

While the input current waveform is not perfectly sinusoidal, power factor and harmonic content are well within the requirements for the US commercial market.

The form factor was designed to fit into the PAR38 envelope and the driver and LEDs can be used to replace 65 W incandescent flood lamps.

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Errata Sheet
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Data Brief

Key Features

  • Output current 350 mA +/-3% over 90 V-138 V line range
  • Load: 18 (connected in series) 1 W LEDs
  • Efficiency > 93%
  • Power factor > 0.97
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1300: A 93% efficient LED driver solution for the US market
1.0 298 KB

Application Notes

Description Version Size
AN3410: A 93% efficient LED driver solution for the US market
1.1 1,957 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-ILL041V1 gerber files
1.0 191 KB

Bill of Materials

Description Version Size
1.0 11 KB

Schematic Pack

Description Version Size
STEVAL-ILL041V1 schematics
1.0 35 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ILL041V1ActiveL6564-75Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA10

(*) 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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