80 W offline PFC and LED driver demonstration board
Features
■ 80 W LED driver
■ 350 mA, 700 mA and 1 A LED current settings
■ High efficiency (~90%)
■ Wide input voltage range: 88 V to 265 VAC
■ High power factor: 0.982 for 230 V/50 Hz AC
■ Universal PWM input for dimming (external
board required)
■ Non-isolated SMPS
■ Brightness regulation between 0 and 100%
■ EMI filter implemented
■ EN55015 and EN61000-3-2 compliant
Description
STEVAL-ILL013V1
with dimming based on the L6562A
Data Brief
STEVAL-ILL013V1
This demonstration board design is complaint
with standard EN61000-3-2 (limits for harmonic
current emissions).
The use of high power LEDs in lighting
applications is becoming increasingly popular due
to rapid improvements in lighting efficiency, longer
life, higher reliability and overall cost
effectiveness. Dimming funtions are more easily
implemented in LEDs, and they are more robust
and offer wider design flexibility compared to
other light sources.
The STEVAL-ILL013V1 demonstration board is
an 80 W offline dimmable LED driver with high
power factor (PF) intended for 350 mA, 700 mA
and 1 A LEDs.
The converter is designed as a constant current
source to achieve the best lighting performance
from the LEDs, and can be used for lighting
applications from low power, low voltage to high
power, high voltage. This allows designers to
cover a wide range of different LED systems
using a single topology.
Additionally, in lighting applications where the
input active power is higher than 25 W and a high
power factor is required, the high PF converter
can be connected as the first stage, before the
modified BUCK converter.
March 2009 Rev 1 1/5
For further information contact your local STMicroelectronics sales office.
www.st.com
5
Circuit schematic STEVAL-ILL013V1
1 Circuit schematic
Figure 1. Schematic diagram
+
-
J2J2J2
2
1
3
C113
C113
R117
R117
2200nF
2200nF
2
5
L6562A
L6562A
D104
D104
4
3
25
25
R1
R1
47u/450V
47u/450V
Q101
Q101
1
V
IN
C
VC
8
4148
4148
1N
1N
2
2
220nF/X
220nF/X
-
-
Q102
Q102
k
k
330
330
P
P
50F
50F
P8NM
P8NM
ST
ST
1
2
R115
R115
7
GD
COCOMP
ZCZCD
LT
MU
3
1
1A/250V
1A/250V
3
X8
X8
R121
R121
R120
R120
Heatsink
Heatsink
4 3
R116
R116
33R
33R
CS
GNGND
C105
C105
C110
C110
100nF
100nF
R105
R105
C101
C101
28
28
R1
R1
15k
15k
47k
47k
R111
R111
4
6
D101
D101
15k
15k
C106
C106
43k
43k
82k
82k
R114
R114
W
W
18V/0.5
18V/0.5
10nF
10nF
/ 250V ac
/ 250V ac
Y1
Y1
1n/
1n/
R113
R113
0
0
C107
C107
R112
R112
33uF/35V
33uF/35V
V
V
C208
C208
0,47uF/450
0,47uF/450
D202
D202
400V
1R
1R
16V
10uF/35V
10uF/35V
100nF
100nF
C202
C202
01
01
C2
C2
22uF/35V
22uF/35V
k
k
k
k
20
20
20
k
k
330
330
1M
1M
5
378
2
R109
R109
C109
C109
270k
270k
1M
1M
2
2
220nF/X
220nF/X
C102
C102
J1J1J1
R119
R119
150nF
150nF
C112
C112
R122
R122
47R
47R
D102
D102
1
1
BR
BR
2
2
2
470nF/X
470nF/X
321
24
24
R1
R1
R110
R110
4148
4148
1N
1N
R107
R107
R102
R102
R127
R127
1M
1M
0
0
1M
1M
+
+
k
k
330
330
22k
22k
C111
C111
47k
47k
270k
270k
C104
C104
20
U101
U101
R104
R104
R126
R126
V
400V
16
23
23
R1
R1
R118
R118
1L06
1L06
D103
D103
STTH
2/5
R101
R101
STTH
T101
T101
6
9
10101
R108
47R
R108
47R
12nF
12nF
12nF
12nF
C108
C108
R106
R106
R103
R103
1A
1A
H/
H/
22m
22m
C103
C103
2x
2x
C
C
34
1
1
CM
CM
TR
TR
12
1M
1M
1M
1M
C
C
NT
10R
10R
F1
F1
2A/250V
2A/250V
PSC806D
PSC806D
+
J3J3J3
s
s
rn
rn
Tu
Tu
172
172
H /
H /
1
1
1,6m
1,6m
L20
L20
01
01
Q2
Q2
U201
L6562A
U201
L6562A
R208
47K
R208
47K
-
21345
6
1L06A
1L06A
D203
D203
STTH
STTH
F9NM50N
F9NM50N
ST
ST
1
Heatsink
Heatsink
4 3
2
R201
33R
R201
33R
4148
4148
R202
R202
D201
D201
C203
C203
7
8
C
VC
V
IN
1
5
6
D
D
GD
ZC
GN
R207
R207
LT
MP
CO
MU
CS
2
3
4
R209
3.9K
R209
3.9K
4148
4148
D204
D204
213456789
10
J4J4J4
PWM dimming signal
12
12
12
220pF/63V
220pF/63V
1K
1K
R206
R206
2/0.6W
2/0.6W
2R
2R
MPER
MPER
2
2
JP
JP
4
4
JP
JP
JU
JU
1 2
3
3
JP
JP
1
1
JP
JP
C207
C207
MPER
MPER
JU
JU
MPER
MPER
JU
JU
MPER
MPER
JU
JU
05
05
R2
R2
7/0.6W
7/0.6W
2R
2R
R204
R204
5/0.6W
5/0.6W
1R
1R
C206
1n5/63V
C206
1n5/63V
C205
820pF/63V
C205
820pF/63V
C204
390pF/63V
C204
390pF/63V
9
9
R203
R203
330pF
330pF