STEVAL-ILL009V4
OSRAM Golden DRAGON LEDs board
Data Brief
Features
LED package: white SMT package, colorless clear silicone resin Feature of the device: point lightsource with high luminous efficiency and low space Grouping parameter: luminous flux wavelength radiant power ESD-withstand voltage: up to 2 kV acc. to JESD22-A114-B
Description
This board is an option to the STEVAL-ILL009V3. As a light source, there are four Golden DRAGON LEDs used with a maximum forward current of 350 mA. The STEVAL-ILL009V1 can drive eight Golden DRAGON LEDs. To demonstrate the driving capability of the STP04CM596, only four LEDs are used on the load board. This means that one STP04CM596 driver is not used. The STLM20 temperature sensor is assembled in the middle of the LEDs to protect against overheating. STEVAL-ILL009V4
November 2007
Rev 1
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www.st.com 4
For further information contact your local STMicroelectronics sales office.
Board schematic
STEVAL-ILL009V4
1
Board schematic
Figure 1. Schematic
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 (R4||R5||R6)
R4 10 R5 10 R6 10
R1
G1a G1b B1
VCC
Temperature sensor
IO5
4
C7
5
100nF
Vo GN D GN D N C
STLM20
V+
3 2 1
2/4
R1 R1 G1 a G1 a G1 b G1 b B1 B1 R2 R2 G2 a G2 a G2 b G2 b B2 B2 NC NC GN D GN D NC Vo NC Vcc NC NC Vd Vd Vd Vd
ICC CONNECTOR2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
STEVAL-ILL009V4
Revision history
2
Revision history
Table 1.
Date 20-Nov-2007
Document revision history
Revision 1 Initial release Changes
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STEVAL-ILL009V4
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