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LD7531 Datasheet(PDF) 13 Page - Leadtrend Technology

Part # LD7531
Description  Green-Mode PWM Controller with Frequency Trembling and Integrated Protections
PDF  18 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7531 Datasheet(HTML) 13 Page - Leadtrend Technology

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LD7531
13
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7531-DS-00 June 2008
Reference Application Circuit --- 50W (12V/4.2A) Adapter
BOM
P/N
Component Value
Note
P/N
Component Value
Note
R1A
1M
Ω, 1206, 1%
C1
100
μF, 400V
TY
R1B
1M
Ω, 1206, 1%
C2
1000pF,
1000V,
1206
R2A
1M
Ω, 1206, 1%
C4
3.3
μF, 50V
LZG
R2C
1M
Ω, 1206, 1%
C5
220pF, 50V, 0805
R2E
1M
Ω, 1206, 1%
C6
3.3nF, 50V, 0805
R4A/1
100K
Ω, 1206, 1%
C8
10
μF, 50V
LZG
R4A/2
100K
Ω, 1206, 1%
C9
NA
R4B/1
100K
Ω, 1206, 1%
C51
1000pF, 1000V,
1206
R4B/2
100K
Ω, 1206, 1%
C52
220
μF, 25V
LZG
R5A
22
Ω, 1206, 1%
C53
1500
μF, 16V
LZG
R5B
22
Ω, 1206, 1%
C54
1500
μF, 16V
LZG
R6
0
Ω, 1206, 5%
C55
10nF, 50V, 0805
R8
0.43
Ω, 2WS
C99
NA
R9
200
Ω, 0805, 1%
CX1
0.33
μF, X-cap
R10
15
Ω, 1206, 1%
CY1
2200pF,Y-cap,
class1
R11
20K
Ω, 1206, 1%
D1
1N4007
RT
100K
Ω, 0805, 1%
D2
1N4007
R51A
75
Ω, 1206, 1%
D3
1N4148,
R51B
75
Ω, 1206, 1%
D4
1N4148
R52
9.53K
Ω, 0805, 1%
Q1
8A, 600V
R53
2.49K
Ω, 0805, 1%
BD1
2A, 600V
R54
510
Ω, 0805, 1%
CR51
10A, 100V
R55
3K
Ω, 0805, 1%
ZD1
NA
R56
NA
ZD51
NA
R99A
4.7K
Ω, 1206, 1%
IC1
LD7531
Leadtrend
R99B
NA
IC2
EL817B
R99C
NA
IC51
KA431, 1%
NTC1
3A, 5
Ω
F1
250V, T2A
Walter
LF1
Leadtrend’s Design
MOV1
NA
LF2
Leadtrend’s Design
T1
Leadtrend’s Design
L51
Leadtrend’s Design



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