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Camera flash with SuperCap based on the STCF04
  • active Active

The STEVAL-TLL008V1 demonstration board is a flash LED driver using the STCF04 device, which is a buck-boost converter with an I²C interface dedicated to charging a SuperCap.

All LEDs with a forward voltage range from 2.5 V to 5 V are compatible with the STCF04. The forward voltage spread of any selected LED must, however, be within this range (2.5 V to 5 V). It is possible to set the level of the LED current in Flash mode and Torch mode by setting the dimming registers. The maximum level of the LED current in Flash mode can be set by changing the external flash resistor.

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Errata Sheet
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Data Brief

Key Features

  • Different operation modes:
  • Shutdown mode, mainly used to decrease the power consumption of the device
  • Monitoring mode, used to monitor the SuperCap voltage
  • IDLE mode, which allows the accessing of all the internal registers
  • NTC feature, which can be used in all modes. The NTC is activated automatically in flash and Torch mode regardless of the value of the NTC_ON bit. NTC must be activated manually in all the other modes
  • Torch mode, intended to be used for low light intensities. The LED current in Torch mode can be adjusted in a range from 15 mA up to 300 mA
  • Flash mode, intended to be used for high light intensities. The LED current in Flash mode can be adjusted up to 10 A with the input voltage ranging from 2.7 V up to 5.5 V
  • Status register and ATN pin
  • Ready pin
  • Light sensor (optional)
  • RoHS compliant


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1545: Camera flash with SuperCap based on the STCF04
1.0 300 KB

User Manual

Description Version Size
UM1541: STCF04 demonstration kit
1.0 1,119 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
STEVAL-TLL008V1 gerber files
1.0.0 412 KB

Bill of Materials

Description Version Size
1.0.0 12 KB

Schematic Pack

Description Version Size
STEVAL-TLL008V1 schematics
1.0.0 43 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-TLL008 STEVAL-TLL008V1 software package

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-TLL008V1ActiveSTCF04Buy Direct106.57Distributor reported inventory date: 2014-04-23
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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