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E-L4981A View Datasheet(PDF) - STMicroelectronics

Part Name
Description
View to exact match
E-L4981A
ST-Microelectronics
STMicroelectronics ST-Microelectronics
E-L4981A Datasheet PDF : 16 Pages
First Prev 11 12 13 14 15 16
L4981A - L4981B
Figure 19: Demo Board Circuit (VO = 400V; PO = 360W).
F1
T15A250V
88 to 264 Vac
BRIDGE
B1 8A
Cf
.22uF
600V
RAux1
**
RAux2
B2= D1+D2
+D8+D9
R14
68
Dz1
18V
VCC
C10
150uF D4-STTH8R06 NTC
to220 (/40CW) 2.5
V+ BUS=400V
C2
330n
C3
330n
R2
33k
R4
1.2M R6
R11
500k 56k
R5
R12
220k
56k
R7
500k
L1=0.5mE42*21*15
gap=1.9 58/6 turns
20*.2mm
VCC
C11
220n
D5-
STTA106
D6
DZW06-48
C8
100n
R16
220k
R19
L2
3u
C14
750k
R18
6.8
R22
750k
100n
2W
D7-STTA406
R20
750k
R23
750k
C1
330nF
400V
15
16
2
TP1
R1
460
7
4
1
19
13
14
3
L4981A/ B**
85
R10
5k
9 18 10
20
6
17 12 11
R3
R8 C6
2.2k 17k 3.3n
C9 R15
C12
1n 24k
1u
R13
2.2k
D3
R17
15
Q1+Q2#
C13
1u
Cs
330pF
Q4
4007
R21
19.6k
R25
1k
2W
R24
16.9k
C15
220uF
450V
-
R9 (RS)
50m
// 3*0.15)
# // Q1&Q2
TO220*2
STM12NM50
/ 7C/W
Figure 20: Component Layout (Dimensions 88 x 150mm).
11/16
 

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