MC33368 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC33368 Datasheet PDF : 16 Pages
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MC33368
Figure 16. 175 W Universal Input Power Factor Controller
1N5406
C5
D2
D4
1.0
92 to EMI D1
D3
270 Vrms Filter
16 Line
Vref
Vref
MC33368
R8
1.0 M
C9
2.2
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
15 V
UVLO
Zero
Current
Detect
13/8.0
1.2/1.0 6.9 V
Frequency
Clamp
Quickstart
Leading Edge
Blanking
Mult
5
R3
C2 Multiplier
5.0 V
Reference
10 k
0.01
4 Comp
1 Vref
C1
2.2
Vref
C6
0.1
3 FB
Not Used: D7, C7, C8, R6, R9, R10
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
To VCC
Pin 12
13
FC
9
LEB
6
CS
MUR460
D5
VO
C3
330
MTW20N50E
R2
820 k
R7
0.1
R1
T: Coilcraft N2880–A
10 k
L = 870 µHy
Primary: 78 turns of #16 AWG
Secondary: 6 turns of #18 AWG
Core: Coilcraft PT4215, EE42–15
Gap: 0.104″ total
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(%)
90 190.4 0.995 2.11 5.8 0.16 0.32 0.24 0.80 3.6 398.0 0.44 175.9 92.4
120 192.1 0.997 1.60 3.2 0.08 0.17 0.07 0.30 3.6 398.9 0.44 177.1 92.2
138 192.7 0.997 1.40 0.9 0.08 0.24 0.03 0.15 3.6 402.3 0.45 179.0 92.9
180 194.3 0.995 1.08 0.9 0.04 0.18 0.04 0.08 3.6 409.1 0.45 182.9 94.1
240 189.3 0.983 0.80 0.7 0.08 0.21 0.08 0.06 3.6 407.0 0.45 181.1 95.7
268 186.3 0.972 0.71 0.6 0.11 0.32 0.10 0.10 3.6 406.2 0.44 180.4 96.8
Heatsink = AAVID Engineering Inc., 590302B03600
12
MOTOROLA ANALOG IC DEVICE DATA
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