Datasheet

C7
220nF
100V
R17
806K
1%
R17
806K
1%
R22
R23
R19
1.1M
5%
R19
1.1M
5%
R8
33K
5%
R7 360K 5% R6 620K 5%
R6
620K
5%
4
7
BRIDGE
4 x BY214
C1
220nF
400V
R21
5.1K
1%
L4981A
2
R15
10K
0.5W
R14
56
0.5W
C10
15nF
100V
1915
D4
1N4150
DZ
22V
0.5W
C11
100µF
25V
D3 1N4150
D3
2N2222
C8
220nF
100V
L 0.9mH
14
13
C9
330nF
R12
220K
5%
3
C12
270pF
630V
STH/STW15NB50
R13
Q1
Q2
STK2N50
D5
BYT
11600
R18
1.8K
4W
20
R11
560 1%
R3
2.7K
5%
R5
27K 5%
0.07 2W
C3
1nF
R4
2.7K
5%
R16
24K
1%
15 5%
C4
1nF
C6
1µF
16V
61
R2
11K
1%
R10
21K
1%
R1
412K
1%
R9
910K
1%
R1
412K
1%
R9
910K
1%
D1 5TTA5060
12
C5
1µF
16V
111718958
FUSE
C2
100µF
450V
+
-
Vo
D93IN029C
Vi
88V
AC
to 254V
AC
NTC
D2 1N4150
R
S
R20
10K 5%
Figure 9A:
L4981A Power Factor Corrector (200W)
f
SW
= 80kHz; P
O
= 200W; V
OUT
= 400V; I
rms max
= 2.53A; V
OVP
= 442V; I
PK max
= 6.2A
C7
220nF
100V
R17
806K
1%
R22
1.1M
R17
806K
1%
R22
R23
R19
1.1M
5%
R19
1.1M
5%
R8
33K
5%
R7 360K 5% R6 620K 5%
R6
620K
5%
4
16
7
BRIDGE
4 x BY214
C1
220nF
400V
R21
5.1K
1%
L4981B
2
R15
10K
0.5W
R14
56
0.5W
C10
15nF
100V
1915
D4
1N4150
DZ
22V
0.5W
C11
100µF
25V
D3 1N4150
D3
2N2222
C8
220nF
100V
L 0.9mH
14
13
C9
330nF
R12
220K
5%
3
C12
270pF
630V
STH/STW15NB50
R13
Q1
Q2
STK2N50
D5
BYT
11600
R18
1.8K
4W
20
R11
560 1%
R3
2.7K
5%
R5
27K 5%
0.07 2W
C3
1nF
R4
2.7K
5%
R16
24K
1%
15 5%
C4
1.1nF
C6
1µF
16V
61
R2
11K
1%
R10
21K
1%
R1
412K
1%
R9
910K
1%
R1
412K
1%
R9
910K
1%
D1 5TTA5060
12
C5
1µF
16V
111718958
FUSE
C2
100µF
450V
+
-
Vo
D95IN220A
Vi
88V
AC
to 254V
AC
NTC
D2 1N4150
R
S
R20
10K 5%
Figure 9B:
L4981B Power Factor Corrector (200W)
f
SW
= 80 to 92kHz; P
O
= 200W; V
OUT
= 400V; I
rms max
= 2.53A; V
OVP
= 442V; I
PK max
= 6.2A
L4981A - L4981B
8/16