Camera flash based on the STCF07

The STEVAL-TLL009V1 demonstration board demonstrates the performance of the STCF07, a dedicated and size-optimized solution for driving a power LED.

This device is a buck-boost converter which guarantees proper LED current control over all possible battery voltage and LED forward voltage conditions.

The output current control ensures good current regulation over the forward voltage spread characteristics of high-brightness LEDs.

The device also includes various functions to protect the chip and the power LEDs, such as an optional external NTC that is supported to protect the LEDs against overheating.

It is possible to separately program the current intensity in HIGH and LOW mode using the SEL pin.

Key Features

  • Buck-boost DC-DC converter
  • Drives one power LED up to 1 A in Flash mode
  • Drives one power LED up to 800 mA in continuous mode
  • LED temperature protection and output current control
  • 1.8 MHz (typ.) fixed frequency PWM
  • Synchronous rectification
  • High efficiency across the total input voltage range
  • Peak inductor limited to 2.3 A (typ.)
  • LED disconnected from the battery in shutdown mode
  • NTC LED temperature protection
  • Overvoltage protection: 5.3 V
  • Short-circuit protection and overtemperature protection
  • ULVLO function
  • 1 μA max. shutdown current
  • RoHS compliant

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Design

Technical Documentation

Product Specifications
Description Version Size
DB1653 DB1653: Camera flash based on the STCF07 1.0 248 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
STEVAL-TLL009V1 gerber files 1.0 33 KB
Bill of Materials
Description Version Size
STEVAL-TLL009V1 BOM 1.0 8 KB
Schematic Packs
Description Version Size
STEVAL-TLL009V1 schematics 1.0 28 KB

Legal

License Agreement
Description Version Size
Evaluation products license agreement 1.0 125 KB
Support & Community
Related Applications

Sample & Buy

Part Number Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-TLL009V1 STCF07 Active 57.58 1 NEC EAR99 ITALY MORE INFO Buy Direct Add to cart DISTRIBUTOR AVAILABILITY
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(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-TLL009V1 ActiveCARDIndustrialEcopack2
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(**) The Material Declaration forms available on st.com 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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