U3848 데이터 시트보기 (PDF) - Unisonic Technologies
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U3848 Datasheet PDF : 13 Pages
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U3848/A/B/C
TYPICAL APPLICATION CIRCUIT
LINEAR INTEGRATED CIRCUIT
AC IN
TH1
F1
CX1
BD1
D3
D1
L3
R12
TR1
C8
CD1 RD1
+ C5
+
C9
R7
C15
IC3
4
5
3 UTC 6
2
U3848 /
A/B /C
7
1
8
R6
Q1
D2
R
R5
R2
IC1
R11 C3 + C4
RF
C14
R17
C2
IC2
R4
R3
+
5V 3A
GND
CY1
FIG.12 U3848/A/B/C Typical Application Circuit
Table1 Components Reference description for U3848/A/B/C application circuit
C12 CC 10nF/1000V
D3 Diode
UF1007
RR
C14 CC
100nF/50V
IC1 IC
PC817
TH1
C2 CC
33nF/50V
IC2 IC
TL431CLP
BD1 R
CX1
104/275V
IC3 IC U3848/A/B/C
RD1 R
C5 EC 1000uF/15V
L3
L
1.2uH
R12 R
C4 CC
22uF/50V
Q1 MOS
4N60
TR1
C8 EC
68uF/400V
R7
R
68KΩ
1/8W
RF R
C9 EC 1000uF/16V
R17 R
1.2Ω/1W
1/8W
C15 CC
CD1 CC
1nF/1KV
R2
R
680Ω
1/8W
CY1 CC
4.7nF/250V
R3
R
ADJ
1/8W
D1 Diode
C63-004
R4
R
5.6KΩ
1/8W
D2 Diode
1N4148
R5
R
5.6KΩ
1/8W
Note: C5 and C9 are lower ESR capacitors.
470KΩ
SCK-103
KBP-208
10Ω
3.3kΩ
optional
4.7kΩ
0.1µF/50V
1/8W
1/8W
1/8W
1/8W
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
11 of 13
QW-R103-033,B
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