MC33368D(2000) 查看數據表（PDF） - ON Semiconductor
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MC33368D Datasheet PDF : 20 Pages
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MC33368
1N5406
C5
D2
D4
1.0
92 to EMI
270 Filter
D1
D3
Vac
Vref
Vref
MC33368
R8
1.0 M
C9
330 µF
RD
2
AGnd
8
1.5 V
R5
1.3 M
Q Timer R
RS Latch
R
R
S
SQ
S
Set Dominant
Overvoltage
Comparator
Low
Load Detect
1.08 x Vref
16 Line
15 V
UVLO
Zero
Current
Detect
13/8.0
1.2/1.0 1.5 V
Frequency
Clamp
R3
10.5 k
Mult
5
C2
0.01
Multiplier
Quickstart
Leading Edge
Blanking
5.0 V
Reference
4 Comp
C1
1.0
1 Vref
C6
Vref
0.1
3 FB
VCC1ND48744
R13
51 D6
1N4934
12
C4
100
7 15 V
ZCD R4
22 k
Gate
11
PGnd
10
13
R11
10
Vref
R10
10 k
T
MUR460
D5
Q1
C3 400 V
330
MTW20N50E
R2
820 k
FC
C7
9
470 pF
LEB
R9
6
10
CS
C8
0.001
R7
0.1
R1
10 k
Figure 19. 400 W Power Factor Controller
http://onsemi.com
14
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