STMICROELECTRONICS STEVAL

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.
November 2007
STEVAL-ILL009V4
Rev 1
For further information contact your local STMicroelectronics sales office.
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Board schematic
1
STEVAL-ILL009V4
Board schematic
Figure 1.
Schematic
R4 10
R5 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
(R4||R5||R6)
R6 10
R1
G1a G1b B1
VCC
Temperature sensor
IO5
4
C7
5
100nF
V+
Vo
GND
GND NC
3
2
1
R1
R1
G1a
G1a
G1b
G1b
B1
B1
R2
R2
G2a
G2a
G2b
G2b
B2
B2
NC
NC
GND
GND
NC
Vo
NC
Vcc
NC
NC
Vd
Vd
Vd
Vd
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
STLM20
ICC
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CONNECTOR2
STEVAL-ILL009V4
2
Revision history
Revision history
Table 1.
Document revision history
Date
Revision
20-Nov-2007
1
Changes
Initial release
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STEVAL-ILL009V4
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