AN4291 Datasheet, PDF (45/53 Pages) STMicroelectronics – STEVAL385LED4CH: four independent high brightness LED

AN4291
Pinout
Table 6. STLUX385A pinout (continued)
Pin
Dir.
Function
Note
29
PS
VDDA
Analog power supply
30
PS
VSSA
Analog ground
31
A-IN
ADCIN[7]
Key input – voltage depends whether key is pressed or
not
32
A-IN
ADCIN[6]
External dimming signal – 0 -10 V equal to 0% 100% –
(option)
33
A-IN
ADCIN[5]
Not used
34
A-IN
ADCIN[4]
Analog input CH4 – V_COM3 – voltage from LED3 chain
35
A-IN
ADCIN[3]
Analog input CH3 – V_COM2 – voltage from LED2 chain
36
A-IN
ADCIN[2]
Analog input CH2 – V_COM1 – voltage from LED1 chain
37
A-IN
ADCIN[1]
Analog input CH1 – V_COM0 – voltage from LED0 chain
38
A-IN
ADCIN[0]
Analog input CH0 – ADCIN0 – voltage on V_{LED_PW}
signal (V_IN)
Note:
When the DALI I/F is used, please remove R78, R77 resistor (lose RUN-FAULT function),
enable the "USE_DALI" constant on the "led.h" source file, recompile and load the new
code.To request the source code for the DALI stack, please contact your local ST
representative. The STEVAL-ILM001V1 kit gives access to the DALI hardware interface.
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