Product Information

STEVAL-ILL071V1

STEVAL-ILL071V1 electronic component of STMicroelectronics

Datasheet
LED Lighting Development Tools LED backlight demonstration based on the STP04CM05, ST1S40 and STM32F030
Manufacturer: STMicroelectronics
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



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0 - WHS 1

MOQ : 1
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STEVAL-ILL071V1
STMicroelectronics

1 : USD 139.5844
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Obsolete
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MOQ : 1
Multiples : 1

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STEVAL-ILL071V1
STMicroelectronics

1 : USD 122.0283
N/A

Obsolete

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Additional Infomation About Product

S T E VA L - I L L 0 7 1 V 1 LED backlight demonstration based on the STP04CM05, ST1S40 and STM32F030 Data brief All channels monitored and worst-case corrected Periodic self-tuning possible Self-tuning at each startup corrects aging behavior of LEDs Double-layered PCB RoHS compliant Description The STEVAL-ILL071V1 demonstrates how to implement LED backlighting based on the STP04CM05 high current LED driver, the ST1S40 step-down DC-DC converter and the STM32F030 ARM Cortex-M0 microcontroller. This board features 24 LEDs (8 LED strings with 3 LEDs per string) but additional modules can be cascaded for a larger backlight area. Possible application may be extended to any LED lighting system based on integrated LED drivers. The design optimizes the LED driver rail voltage such that dissipation within the driver is minimized. It employs an adaptive process to compensate for aging effects of the LEDs (forward LED voltage increases with time). This is achieved by tracking the drop across the LED string using the ADC of the STM32F030, and acting accordingly on the Features feedback pin of the ST1S40 (via PWM) to adjust 24 1-Watt LEDs for ~ 25 W total rail voltage until the LED driver comes out of Scalable solution capable of cascading constant current mode. This knee point of multiple boards for larger systems (pinouts operation is detected and the DC-DC converter for connection to other boards) output is locked to the minimum voltage at which Preset demo mode for adaptive voltage the LED driver is able to maintain constant control, error representation and brightness current operation. This ensures minimum drop control across the driver channels and thus minimum Adaptive rail voltage correction for minimal loss within them, improving efficiency, reducing device dissipation and higher efficiency power comsumption and increasing reliability. March 2015 DocID027640 Rev 1 1/6 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagrams STEVAL-ILL071V1 1 Schematic diagrams Figure 1: STEVAL-ILL071V1 circuit schematic (1 of 6) Figure 2: STEVAL-ILL071V1 circuit schematic (2 of 6) 2/6 DocID027640 Rev 1

HS Compliance

Tariff Desc

8543.70.00 Other machines and apparatus Free
13 Signal processors (graphic equalisers, crossovers etc.) 91 Other Free

9027.10.00 Instruments and apparatus for physical or chemical analysis (eg, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes Free

9031.80.00 MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS Other instruments, appliances and machines Free

9030.31.00 Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, x-ray, cosmic or other ionising radiations.
Other instruments and apparatus, for measuring or checking voltage, current, resistance or power Multimeters without a recording device Free

8473.30.00 Parts and accessories of the machines of 8471 AUTOMATIC DATA PROCESSING MACHINES AND UNITS THEREOF; MAGNETIC OR OPTICAL READERS, MACHINES FOR TRANSCRIBING DATA ONTO DATA MEDIA IN CODED FORM AND MACHINES FOR PROCESSING SUCH DATA, NOT ELSEWHERE SPECIFIED OR INCLUDED:
.Other 71 No Weighing less than 1kg Free

8537 BOARDS, PANELS, CONSOLES, DESKS, CABINETS AND OTHER BASES, EQUIPPED WITH TWO OR MORE APPARATUS OF 8535 OR 8536, FOR ELECTRIC CONTROL OR THE DISTRIBUTION OF ELECTRICITY, INCLUDING THOSE INCORPORATING INSTRUMENTS OR APPARATUS OF CHAPTER 90, AND NUMERICAL CONTROL APPARATUS, OTHER THAN SWITCHING APPARATUS OF 8517:
8538 PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE APPARATUS OF 8535, 8536 OR 8537:
8538.10.10 22 For programmable controllers Free

Stmicroelectronics may also be referenced as

C-Max
C-Max (VA)
SG3
ST
ST MICROELECTRONICS
ST2
ST7
STM
STMICRELECTRONICS
STN

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