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參數(shù)資料
| 型號： | L4990A |
| 廠商： | 意法半導體 |
| 英文描述： | PRIMARY CONTROLLER |
| 中文描述： | 主控制器 |
| 文件頁數(shù)： | 16/24頁 |
| 文件大?。?/td> | 322K |
| 代理商： | L4990A |
Table 3. Components List of the Fig. 30 AC-DC adaptorelectric schematic.
Component
Resistors
Reference
R1
R2
R3, R14
R4
R5
R6
R7
R8, R9
R10
R11
R12, R13
R15
R16
R17
R19
R20, R21
R22
R23
R24
C1
C2
C3
C4
C5
C6, C15
C7, C14
C8
C9
C10
C11
C12
C13
T1
Value
1.6k
9.1k
10
360k
27k
200k
4.7
4.7k
5.6k
1
24k
330
-
390
100k
470k
200
2k
1k
100
μ
F
330
μ
F
47
μ
F
1
μ
F
1nF
10nF
330pF
330pF
100nF
220nF
100pF
-
4.7nF
380
μ
H
Description
2%, 1/8W
2%, 1/8W
5%, 1/8W
2%, 1/8W
2%, 1/8W
2%, 1/8W
2%, 1/8W
2%, 1/8W
2%, 1/8W
2%, 1/2W, metallic film (low inductance)
2%, 1/2W
5%, 1/8W
Not used
5%,1W, 2 paralleled resistors (not used)
5%, 1W
2%, 1/8W
5%, 1/8W
2%, 1/8W
5%, 1/8W
400V, NCC-SMH or equiv.
25V, NCC-LXF or equiv., 3 paralleled capacitors
25V, electrolytic
10V, electrolytic
J precision
Capacitors
160V, polypropilene
ceramic
Not used
630V
Core: EFD25, Philips, 3F3 ferrite (or equivalent)
Primary: 46 T, litz wire 20 x 0.1, interleaved assembly
Secondary: 6 T, 4 paralleledlitz wire 20 x 0.1
Auxiliary: 7 T (evenly spaced),
0.2 mm GAP ~ 0.7mm
ST, TO220 package
ST (or equivalent)
GI (or equivalent)
ST, Shottky,TO220 package
ST (or equivalent)
ST, F126package
ELU (or equivalent)
Not used (see warning)
Transformer
Transistors
Q1
Q2
B1
D1
D2, D3
D4
Fuse
NTC
STP5NA80
2N2222
DF04M
STPS20100CT
1N4148
BYT11-600
T2A250V
-
Diodes
Fuse
NTC
L4990 - L4990A
16/24
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