ST Life.augmented


2 x 58 W wide-range ballast based on the L6585DE combo IC
  • active Active

The STEVAL-ILB007V1 demonstration board is capable of driving 2 x 58 W linear T8 fluorescent tubes, and with simple modifications can also be adapted for 2 x 36 W linear T8 fluorescent tubes.

The ballast is controlled by the L6585DE device, which integrates PFC and half-bridge control circuits, the relevant drivers, and the circuitry to manage all lamp operating phases (pre-heating, ignition and run mode). Protection against failures such as lamp disconnection, anti-capacitive mode and PFC over-voltage are guaranteed and achieved using a minimum number of external components.

An electronic ballast consumes less power and therefore dissipates less heat than an electromagnetic ballast. The energy saved can be estimated to be in the range of 20-25% for a given lamp power.

Finally, the electronic solution allows better control of the filament current and lamp voltage during pre-heating, resulting in an increase in lamp life.

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Errata Sheet
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Data Brief

Key Features

  • Input voltage: 85 to 265 VRMS
  • Line frequency: 50/60Hz
  • Capable of driving 2 x 58 W T8-type tubes
  • Power factor: 0.9
  • THD: 10%
  • Average efficiency: 90%
  • End-of-life detection
  • Broken lamp protection
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB0948: 2 x 58 W wide-range ballast based on the L6585DE combo IC
2.1 83 KB

Application Notes

Description Version Size
AN3032: STEVAL-ILB007V1, 2 x 58 W/T8 ballast based on the L6585DE suitable for 2 x 36 W/T8 lamp
1.1 1,074 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
Gerber files for STEVAL-ILB007V1 board
1.0 117 KB

Bill of Materials

Description Version Size
BOM for STEVAL-ILB007V1 board
1.0 70 KB

Schematic Pack

Description Version Size
Board schematics for STEVAL-ILB007V1 board
2.1 48 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ILB007V1ActiveL6585DEBuy Direct106.57Distributor reported inventory date: 2016-02-08
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA30

(*) 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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