STEVAL-ILL067V1:Six-channel ALED7707-based LED driver with embedded boost converter for automotive interior lighting and TFT backlighting

The purpose of this evaluation board is to provide an application example of a six-channel, medium-current LED driver using the ALED7707 chip. The monolithic boost converter provides the required LED supply voltage starting from a single supply rail, while the brightness of the LED strings connected to the six outputs is controlled through a PWM signal. Open LED and LED short-circuit fault conditions are detected and managed.

The board has been designed to provide a compact reference solution for automotive applications involving several LEDs arranged in multiple strings (e.g. interior lighting, infotainment LCD backlighting, etc.).

Key Features

  • Wide DC input voltage (6 V - 32 V)
  • Six 70 mA output channels (capable of 30 mA to 85 mA each)
  • PWM brightness control (10 µs minimum dimming on-time)
  • Up to 10 white LEDs per channel (36 V OVP threshold)
  • > 90% efficiency (VIN =12 V, VBOOST =30 V, fSW =1 MHz, no snubber)
  • On-board input filter for conducted EMI reduction
  • RoHS compliant
  • All automotive-grade components
Product Specifications
DescriptionVersionSize
DB2607: Six-channel ALED7707-based LED driver with embedded boost converter for automotive interior lighting and TFT backlighting1.0851 KB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ILL067V1 gerber files1.0156 KB
Bill of Materials
DescriptionVersionSize
STEVAL-ILL067V1 BOM1.09 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ILL067V1 schematic1.049 KB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ILL067V1ALED770750.231NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ILL067V1CARDIndustrialEcopack2
Six-channel ALED7707-based LED driver with embedded boost converter for automotive interior lighting and TFT backlighting STEVAL-ILL067V1
Six-channel ALED7707-based LED driver with embedded boost converter for automotive interior lighting and TFT backlighting STEVAL-ILL067V1
Six-channel ALED7707-based LED driver with embedded boost converter for automotive interior lighting and TFT backlighting STEVAL-ILL067V1
Six-channel ALED7707-based LED driver with embedded boost converter for automotive interior lighting and TFT backlighting STEVAL-ILL067V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2