ALED7707

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6-row 85 mA LEDs driver with boost regulator for LCD panel backlights

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Product overview

Description

The ALED7707 device consists of an automotive grade (AEC Q100 compliant) monolithic boost converter and six controlled current generators (rows) specifically designed to supply LED arrays used in the backlighting of LCD panels. The device can manage an output voltage up to 36 V (i.e.: 10 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% dimming duty cycle at 1 kHz 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.

  • All features

    • AEC-Q100 qualification
    • Boost section
      • 4.5 V to 36 V input voltage range
      • Internal power MOSFET
      • Internal +5 V LDO for device supply
      • Up to 36 V output voltage
      • Constant frequency peak current-mode control
      • 250 kHz to 1 MHz adjustable switching frequency
      • External synchronization for multi-device application
      • Pulse skip power saving mode at light load
      • Programmable soft-start
      • Programmable OVP protection
      • Stable with ceramic output capacitors
      • Thermal shutdown
    • Backlight driver section
      • Six rows with 85 mA maximum current capability (adjustable)
      • Rows disable option
      • Less than 10 μs minimum dimming on-time
      • ± 3% current matching between rows
      • LED failure (open and short-circuit) detection

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STMicroelectronics - ALED7707

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ALED7707
Active
VFQFPN 24 5x5x1.0 Automotive Ecopack2
ALED7707TR
Active
VFQFPN 24 5x5x1.0 Automotive Ecopack2

ALED7707

Package:

VFQFPN 24 5x5x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 24 5x5x1.0

Grade

Automotive

RoHS Compliance Grade

Ecopack2

ALED7707TR

Package:

VFQFPN 24 5x5x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 24 5x5x1.0

Grade

Automotive

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.

Sample & Buy

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ALED7707
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ALED7707TR
Available at distributors

Distributor availability of ALED7707TR

Distributor Name
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Distributor reported inventory date:

No availability of distributors reported, please contact our sales office

ALED7707 Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

ALED7707

Operating Temperature (°C)

Min:

Max:

ALED7707TR Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

ALED7707TR

Operating Temperature (°C)

Min:

Max:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors