STEVAL-ILL020V1:LCD panels backlight demonstration board based on the LED7706

This demonstration board is based on the LED7706 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 30 mA and can be dimmed via a PWM signal (1% dimming duty cycle at 20 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.

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 control200 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 30 mA maximum current capability (adjustable)pp to 10 white LEDs per rowrows disable optionless than 500 ns minimum dimming time (1% minimum dimming duty-cycle at 20 kHz dimming frequency)±2.0% current matching between rowsLED failure (open and short circuit) detection
产品规格
DescriptionVersionSize
DB0821: LCD panels backlight demonstration board based on the LED77061.1252 KB
Board Manufacturing Specifications
DescriptionVersionSize
Gerber files for STEVAL-ILL020V1 board1.092 KB
Bill of Materials
DescriptionVersionSize
BOM for STEVAL-ILL020V1 board1.053 KB
Schematic Packs
DescriptionVersionSize
Board schematics for STEVAL-ILL020V1 board1.032 KB
许可协议
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
样片和购买
型号Core ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ILL020V1LED770655.131NECEAR99ITALY
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ILL020V1CARDIndustrialEcopack2
Gerber files for STEVAL-ILL020V1 board STEVAL-ILL020V1
BOM for STEVAL-ILL020V1 board STEVAL-ILL020V1
Board schematics for STEVAL-ILL020V1 board STEVAL-ILL020V1
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 ST-LINK-V2