MC33368 查看數據表（PDF） - Motorola => Freescale
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MC33368 Datasheet PDF : 16 Pages
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1N4006
D2
D4
92 to EMI
D1
D3
270 Vrms Filter
MC33368
Figure 15. 80 W Power Factor Controller
C5
1.0
16 Line
Vref
Vref
MC33368
R8
10 k
C9
330 µF
R5
1.3 M
R3
20 k
RD
2
AGnd
8
1.5 V
Q Timer R
RS Latch
R
R
S
SQ
S
Set Dominant
Overvoltage
Comparator
Low
Load Detect
1.08 x Vref
15 V
UVLO
Zero
Current
Detect
13/8.0
1.2/1.0
Frequency
Clamp
D8 R13 D6
VCC 1N4744 51 1N4934
12
C4
100
7 15 V
ZCD R4
T
22 k
Gate
11
R11 Q1
10
PGnd
10
13
FC
9
To VCC
Pin 12
R10
10
C7
10 pF
Quickstart
LEB
Leading Edge
6
Blanking
CS
Mult
5
C2 Multiplier
5.0 V
Reference
0.01
4 Comp
1 Vref
C1
0.68
Vref
C6
T: Coilcraft N2881–A
0.1
Primary = 62 turns of #22 AWG
Secondary = 5 turns of #22 AWG
Core = Coilcraft PT2510, EE25
Gap = 0.072″ total for a primary inductance (Lp) of 320 µH
3 FB
Not Used: D7, C8, R6, R9
320 µH
MUR130
D5
VO
C3
220
MTP8N50E
R2
470 k
R7
0.1
0.25 W
R1
10 k
Power Factor Controller Test Data
AC Line Input
DC Output
Current Harmonic Distortion (% Ifund)
Vrms Pin PF Ifund THD 2
3
5
7 VO(pp) VO IO PO n(%)
90 79.7 0.999 0.89 0.5 0.15 0.09 0.06 0.09 3.0 244.4 0.31 76.01 95.4
100 79.3 0.998 0.79 0.5 0.14 0.09 0.08 0.10 3.0 242.9 0.31 75.54 95.3
110 78.9 0.997 0.72 0.5 0.16 0.13 0.08 0.10 3.0 242.9 0.31 75.30 95.4
120 78.5 0.996 0.66 0.5 0.15 0.12 0.08 0.13 3.0 243.0 0.31 75.57 96.3
130 78.1 0.994 0.60 0.5 0.14 0.12 0.07 0.14 3.0 243.0 0.31 75.57 96.7
138 77.8 0.991 0.57 0.5 0.15 0.14 0.08 0.14 3.0 243.0 0.31 75.57 97.1
Heatsink = AAVID Engineering Inc., 590302B03600, or 593002B03400
MOTOROLA ANALOG IC DEVICE DATA
11
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