LCD panels backlight demonstration board based on the LED7707

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  • This demonstration boards is based on the LED7707 and implements a high efficiency monolithic boost converter and six controlled current generators (rows) specifically designed to supply LEDs arrays used in the backlight of LCD panels.

    The device can manage an output voltage up to 36 V (i.e. ten white-LEDs per row).
    The generators can be externally programmed to sink up to 85 mA and can be dimmed via a PWM signal (1% of minimum dimming duty cycle at 1kHz can be managed).
    The device allows to detect and manage the open and shorted LED faults and to let unused rows floating.
    Basic protections (output overvoltage, internal MOSFET overcurrent and thermal shutdown) are provided.

    主要特性

    • Features boost section4.5 V to 36 V input voltage rangeinternal power MOSFETinternal +5 V LDO for device supplyup to 36 V output voltageconstant frequency peak current-mode control250 kHz to 1 MHz adjustable switching frequencyexternal sync for multi-device applicationpulse-skip power saving mode at light loadprogrammable soft-startprogrammable OVP protectionsingle ceramic output capacitornon-latched thermal shutdown
    • RoHS compliant
    • Features backlight driver sectionsix rows with 85 mA maximum current capability (adjustable)up to 10 white LEDs per rowrows disable optionless than 10 μs minimum dimming time±2.0% current matching between rowsLED failure (open and short circuit) detection

样片和购买

产品型号
核心产品
供货状态
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STEVAL-ILL021V1 LED7707
Active
59.0 1 EAR99 ITALY 查看供货情况

Distributor availability ofSTEVAL-ILL021V1

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 8 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

MOUSER

库存

8

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

6

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

立即购买

STEVAL-ILL021V1

核心产品

LED7707

供货状态

批量生产

Unit Price (US$)

59.0*

Distributor availability ofSTEVAL-ILL021V1

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 8 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

MOUSER

库存

8

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

6

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-09-19

Unit Price (US$)

59

数量

1

ECCN (US)

EAR99

Country of Origin

ITALY

(*) 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

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技术文档

    • 描述 版本 文档大小 操作
      DB0822
      LCD panels backlight demonstration board based on the LED7707
      1.1
      251.7 KB
      PDF
      DB0822

      LCD panels backlight demonstration board based on the LED7707

硬件资源

    • 描述 版本 文档大小 操作
      Gerber files for STEVAL-ILL021V1 board 1.0
      91.89 KB
      ZIP

      Gerber files for STEVAL-ILL021V1 board

    • 描述 版本 文档大小 操作
      BOM for STEVAL-ILL021V1 board 1.0
      53.65 KB
      PDF

      BOM for STEVAL-ILL021V1 board

    • 描述 版本 文档大小 操作
      Board schematics for STEVAL-ILL021V1 board 1.0
      32.6 KB
      PDF

      Board schematics for STEVAL-ILL021V1 board

法律

    • 描述 版本 文档大小 操作
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

产品型号 供货状态 封装 等级规格 符合RoHS级别 WEEE Compliant 材料声明**
STEVAL-ILL021V1
Active
CARD 工业 Ecopack2 -

STEVAL-ILL021V1

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.