STEVAL-ILL006V1
VIPer22A-E off line, constant current driver for high intensity LEDs
Data Brief
Features
Drives from 2 to 8 LEDs Constant current output: 350 mA, 700 mA, 1.05 A (selectable) Input voltage range: 90 to 264 VAC 50/60 Hz Compliant with EN55022 class B for EMI STEVAL-ILL006V1
Description
This board represents a low cost, high efficiency, high brightness multiple LED driver based on the integrated off-line switching regulator VIPer22A-E. The board is an off-line, constant current power supply capable of driving from 2 to 8 LEDs in series operating from universal mains input. The output current can be selected for compatibility with 1 W, 3 W and 5 W LEDs with a total output power of up to 10 W.
November 2007
Rev 1
1/4
www.st.com 4
For further information contact your local STMicroelectronics sales office.
1
4
1 2 3 4 5 6 7 8 9 10 11 12
3
2
+ 4 1
3
D1 C1 600V,1A 4 .7 u F DF06MGI4 0 0 V
.
R2
8 5 8 5
100 5% 1 /2 W 51T
6 6 A
Co m pos tar4 5m H 0 W1 C5
2 1 K
R8 10 1 /4 W 5% D2 STTH10 2 4 .7 n F 0 R3
Vdd 4 4 1
0 .5 1/2W
2 1
U4
8 7 6 5 D rain D rain D rain D rain
R4 100 5% 1 /4 W U3
0 .5 1/2W
2 1
3
1 2 Sourc e Tov l Fb + C 10 VIP e r1 2 A Poly C ap 3
2
R 9 2 .2 K
1
1 /2 W
2
C4 22uF 50V
U2
1 1 Out 1 Vc c 8
2
R15 24k 1 /4 W C6 0 .3 3 u F 50V 0 R16 2 .2 k 1 /4 W
2 3 4
Ve1Vref Gnd
Out 2 Ve2Ve2+
7 6 5
C8 0 .1 u F
1
2
.
2/4
Board schematic
Figure 1.
F1
J4
R1
Schematic
FU S E
6 .8 5% 1W
J1
1 10 1 10 A K 1
L1
C ra m e r CVP11-047 D3 STTH1 52
1 + LED+
LED-
2 1
C11 0 .0 4 7 u F 21T
+ 2
2
Board schematic
R12 0 .5 1/2W
180T C2 10uF 400V C3 47pF 1kV
2
2
C7 220uF 25V
1
R13
2
J2 Ju m p er
1
R14
2
J3 Jum per
6 .2 k 5% 1 /4 W
R10 1K R11 1K
TS M1 0 3 R7 10K
STEVAL-ILL006V1
R5 750
STEVAL-ILL006V1
Revision history
2
Revision history
Table 1.
Date 13-Nov-2007
Document revision history
Revision 1 Initial release Changes
3/4
STEVAL-ILL006V1
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