Datasheet

88 to 264 Vac
BRIDGE
B1 8A
L1=0.5mE42*21*15
gap=1.9 58/6 turns
20*.2mm
C2
330n
C3
330n
R2
33k
R5
220k
R4
1.2M
R6
500k
74
C1
330nF
400V
L4981A/ B**
15
16
R7
500k
19
C8
100n
13
R1
460
R3
2.2k
R8
17k
C6
3.3n
R13
2.2k
C9
1n
R15
24k
1
1710189582
R9
(
RS
)
50m
// 3*0.15
)
R10
5k
R11
56k
R12
56k
R16
220k
14
3
C14
100n
R17
15
# // Q1&Q2
TO220*2
STM12NM50
/ 7C/W
D7-STTA406
20
C12
1u
C13
1u
R21
19.6k
R24
16.9k
R19
750k
R22
750k
D4-STTH8R06
to220 (/40CW)
6
11
12
C15
220uF
450V
-
D3
L2
3u
R18
6.8
2W
R23
750k
C11
220n
R20
750k
R14
68
B2= D1+D2
+D8+D9
VCC
F1
T15A250V
NTC
2.5
V+ BUS=400V
D5-
STTA106
D6
DZW06-48
RAux1
RAux2
Cf
.22uF
600V
TP1
VCC
C10
150uF
Dz1
18V
Q4
4007
R25
1k
2W
Cs
330pF
Q1+Q2#
**
Figure 19:
Demo Board Circuit (V
O
= 400V; P
O
= 360W).
Figure 20:
Component Layout (Dimensions 88 x 150mm).
L4981A - L4981B
11/16