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.

    Key Features

    • 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

Sample & Buy

Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
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STEVAL-ILL021V1 LED7707
Active
59.0 1 EAR99 ITALY Check Availability

Distributor availability ofSTEVAL-ILL021V1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 8 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

MOUSER

Stock

8

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Buy now

STEVAL-ILL021V1

Core Product

LED7707

Marketing Status

Active

Unit Price (US$)

59.0*

Distributor availability ofSTEVAL-ILL021V1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 8 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

MOUSER

Stock

8

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Unit Price (US$)

59

Quantity

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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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      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

Hardware Resources

    • Description Version Size Action
      Gerber files for STEVAL-ILL021V1 board 1.0
      91.89 KB
      ZIP

      Gerber files for STEVAL-ILL021V1 board

    • Description Version Size Action
      BOM for STEVAL-ILL021V1 board 1.0
      53.65 KB
      PDF

      BOM for STEVAL-ILL021V1 board

    • Description Version Size Action
      Board schematics for STEVAL-ILL021V1 board 1.0
      32.6 KB
      PDF

      Board schematics for STEVAL-ILL021V1 board

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ILL021V1
Active
CARD Industrial 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.