STEVAL-ILL073V1 STMicroelectronics

S T E VA L - I L L 0 7 3 V 1 RGB LED driver for automotive lighting based on ALED1642GW and STM8A Data brief Description The STEVAL-ILL073V1 is a high brightness, RGB LED array driver system evaluation board with local dimming and diagnostics based on the ALED1642GW independent PWM LED driver controlled through an STM8A microcontroller SPI interface. A 16 RGB LED matrix is driven by three ALED1642GW LED drivers, one for each channel i.e., Red, Green and Blue. The on-board A7986A DC-DC converter, accepting standard adapter input voltages, provides the voltages and power for the overall operation of the board. The STEVAL-ILL073V1 Features includes a USB-UART daughterboard bridge for High brightness 4 x 4 RGB LED matrix communication with a PC. Complete hardware and software package The evaluation board is also equipped with Various preconfigured and programmable jumpers to simulate LED open circuit and LED patterns short circuit faults, and a 4-pin SWIM connector Open / short error simulation and real-time to debug and to develop the STM8 detection microcontroller firmware. 6 to 28 V DC polarity-independent power supply The STEVAL-ILL073V1 has two modes of GUI for advanced driver configuration operation: in standalone mode, the evaluation USB-UART bridge for PC connection board is controlled via on-board buttons and a RoHS compliant potentiometer in GUI mode, a Graphical User Interface is provided to represent the drivers. When connected to PC, the evaluation board enters GUI mode and the GUI has control of the board. January 2016 DocID028832 Rev 1 1/8 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ILL073V1 1 Schematic diagram Figure 1: STEVAL-ILL073V1 circuit schematic (1/9) DC-DC section UU44 RR2200 LL11 27u27uHH 8 1 4.5V VCC VOUT FF11 FFuussee--RR RReeffeerrenenccee mmouousseerr (( AAHHEEFF100100)) 1010kk BBRRIIDDGGEE 3 AA77998866AA 5 CC88 CNCN11 EN FB CC99 1 66..8n8nFF 1 47u47uFF//2525VV SSMM44TTYY DD1188 DD1199 2 6 2 FSW 3 SSTTPPSS33LL4400-Y-Y RR2233 3 DD1177 -- ++ RR2222 55..11KK 2 1 CC1100 180180RR 220n220nFF//5050vv CCOONNNN GGMM:: KK337755AA CC1133 15n15nFF RR2244 33..33kk RR2255 CC1144 220220kk RR2266 22u22uFF//3535VV CC1155 270p270pFF 100100RR RR2277 680680RR UU55 RR2211 3.3V 4.5V 1 2 VIN VOUT 3.3V 22..22KK LLDD11 CC1111 LLFF3333CDTCDT--TRTRYY CC1122 00..1u1uFF 22..2u2uFF GSPG 1101161420SG Figure 2: STEVAL-ILL073V1 circuit schematic (2/9) PWCLK Microcontroller section RR2288 100100RR UU66 3.3V CC1177 1u1uFF NRST RR4433 00RR CAN RX 1 36 NRST CAN RX/PG1 OSCIN RR4444 00RR CAN TX 2 35 OSCIN/PA1 CAN TX/PG0 OSCOUT 3 34 RR3322 100100RR SDO OSCOUT/PA2 SPI MISO/PC7 4 33 RR3333 100100RR SDI VSSIO 1 SPI MOSI/PC6 5 32 3.3V VSS VDDIO 2 6 31 VCAP STM8AF VSSIO 2 7 30 CC1188 VDD SPI SCK/PC5 1u1uFF 3.3V 8 29 VDDIO 1 PC4 CC1199 9 28 TIM2 CH3/PA3 PC3 RR3344 100100RR 10 27 PA4 PC2 11 26 PA5 PC1 1u1uFF RR3355 100100RR 12 25 PA6 PE5/SPI NSS RR3366 CLK RR3377 100100RR 100100RR 3.3V RR3388 100100RR CC2200 1u1uFF LE CC2211 3.3V 1u1uFF YY11 CC2222 2424MHMHZZ CC2233 22p22pFF 22p22pFF GSPG 1101161410SG 2/8 DocID028832 Rev 1 USART RX USART TX 3 4 13 48 VDDA PD7 14 47 VSSA LINR/PD6 15 46 PB7 LIN/PD5 16 45 3 PB6 PD4 GND ADC 17 44 PB5 PD3 18 43 PB4 PD2 SWIM 19 42 PB3 SWIM 20 41 PB2 PD0 PE0 21 40 PB1 PE0 PE1 22 39 PB0 PE1 7 PE2 GND 23 38 PE7 PE2 2 SYNC 24 37 9 PE6 PE3 EP 4 COMP OSCIN OSCOUT