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STEVAL-ILL035V1

Multi-channel LED driver with integrated boost controller for medium, large LCD panel backlight based on LED7708 and STM32F103C6T6A
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The purpose of the STEVAL-ILL035V1 demonstration board is to provide an application example of a compact LED backlight driver using the LED7708 device.

The board is equipped with a 16-channel LED driver with integrated boost controller (the LED7708), power section components, and an STM32 microcontroller to easily control all the features via a USB connection.

The output voltage required by the LED strings connected to the output channels is derived from a single input rail and continuously adjusted to minimize the voltage drop (and power dissipation) across them, despite an independent PWM duty cycle for each one. The brightness of each LED string is digitally controlled with 12- or 16-bit dimming resolution.

Embedded, programmable fault detection and management circuitry can be set to automatically disconnect faulty channels without the need for intervention by the host controller.

The board has been designed as a demonstration of a solution for medium/large LCD panel backlight drivers, but is suitable for any application involving several LEDs assembled in strings (e.g. advertisement panels, signs, gaming, etc.).

pdf Please read
Errata Sheet
pdf データシート
Data Brief

Key Features

  • Wide DC input voltage: 10 V to 28 V
  • Integrated boost converter with adaptive output voltage for minimum power dissipation
  • Up to 92% boost converter efficiency
  • 16 channels with up to 85 mA/ch current capability and independent PWM brightness control
  • Up to 15 white LEDs per channel
  • On-board STM32 microcontroller for total device control through 4-wire serial interface
  • Embedded open-channel and LED short-circuit faults management
  • USB connection for device control through dedicated PC-GUI
  • Expansion connector to support slave devices (daughterboard)
  • RoHS compliant

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デザイン・リソース

トップ

Technical Documentation

Product Specifications

Description Version Size
pdf
DB1657: Multi-channel LED driver with integrated boost controller for medium, large LCD panel backlight based on LED7708 and STM32F103C6T6A
1.0 251 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
zip
STEVAL-ILL035V1 gerber files
1.0.0 667 KB

Bill of Materials

Description Version Size
pdf
STEVAL-ILL035V1 BOM
1.0.0 56 KB

Schematic Pack

Description Version Size
pdf
STEVAL-ILL035V1 schematics
1.0.0 97 KB

サンプル& 購入

トップ
製品型名 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ILL035V1ActiveLED7708; STM32F103C6T6Buy Direct121.27Distributor reported inventory date: 2014-09-17
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA20
P&SOrder NowASIA/PACIFIC11
Farnell Element14Order NowEUROPE11
DIGIKEYOrder NowWORLDWIDE31
MOUSEROrder NowWORLDWIDE61
Ecopack2-

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(**)弊社ホームページで入手できるMaterial Declaration(材料宣誓書)のフォームは、各パッケージ・タイプで最も一般的に使用されるパッケージに基づいた包括的な文書です。そのため、特定のデバイスについて100%正確ではない可能性があります。特定のデバイスに関する情報については、 弊社セールスオフィス にお問合せ下さい。
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