STEVAL-ILL009V4 Datasheet, PDF (2/4 Pages) STMicroelectronics – OSRAM Golden DRAGON® LEDs board

Board schematic
1
Board schematic
Figure 1. Schematic
R4 10
R5 10
R6 10
U_r = U_s - U_f_red = 4 - 2,6 = 1,4V
R = U_r / I = 1,4 / 0.35 = 4 Ohms => 3.3 Ohms used
STEVAL-ILL009V4
(R4||R5||R6)
R1 G1a G1b B1
VCC
C7
100nF
Temperature sensor
IO5
4
5
V+ Vo
GND
GND NC
3
2
1
STLM20
ICC
CONNECTOR2
2/4