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
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.
STEVAL-ILL006V1
November 2007 Rev 1 1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
4
Board schematic STEVAL-ILL006V1
1 Board schematic
Figure 1. Schematic
1K
R11
1 2
1K
R10
C8
0.1uF
1 2
LED-
12
11
10
J4
9
8
7
6
5
4
3
2
1
LED+
D3
A K
112
R12
0.5
1/2W
1 2
C7
220uF
+
STTH1 52
21T
2
25V
J2
Jump er
1
2
R13
0.5
1/2W
1 2
C5
J3
Jumpe r
1
2
R14
0.5
1/2W
1 2
R4
1005%1/4W
U3
12
43
1 2
R9 2.2K 1/2W
4.7nF
U2
R15
24k
8
7
Vcc
Out11Ve1-2Vref3Gnd
1/4W
C6
0.33uF
6
5
Ve2-
Out2
4
R16
2.2k
50V
R5
750
Ve2+
TSM103
R7 10K
1/4W
R1
6.85%1W
Cramer CVP11-047
10
10
180T
.
L1
43
2 1
R2
8
8
556
51T
R8105%
1005%1/2W
W1
6
AK
1/4W
R3
0
Drain8Drain6Drain7Drain5Source1Tov l
U4
6.2k5%1/4W
50V
C4
22uF
0
+
3
4
Fb
Vdd
VIPe r12 A
2
C10
PolyC ap
1 2
D2
STTH102
0
C3
1kV
47pF
400V
C2
10uF
+
1 2
4 3
.
+
C1
4.7uF
400V
DF06MGI
600V,1A
D1
Compostar45mH
C11
F1
FUSE
0.047uF
1
2
J1
2/4
STEVAL-ILL006V1 Revision history
2 Revision history
Table 1. Document revision history
Date Revision Changes
13-Nov-2007 1 Initial release
3/4
STEVAL-ILL006V1
y
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