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.
|DB0822: LCD panels backlight demonstration board based on the LED7707||1.1||251 KB|
|Gerber files for STEVAL-ILL021V1 board||1.0||91 KB|
|BOM for STEVAL-ILL021V1 board||1.0||53 KB|
|Board schematics for STEVAL-ILL021V1 board||1.0||32 KB|
|Evaluation products license agreement||1.4||128 KB|
|型号||Core Product||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|STEVAL-ILL021V1||LED7707||Active : Product is in volume production||59||1||NEC||EAR99||ITALY||MORE INFO||DISTRIBUTOR AVAILABILITY|
|型号||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
(**) 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.