MC33368_11 Datasheet, PDF (11/16 Pages) ON Semiconductor – High Voltage GreenLine Power Factor Controller

MC33368
1N4006
C5
D2
D4
1.0
92 to _EMI
270 _Filter
D1
D3
Vrms
16 Line
V_ref
V_ref
MC33368
R8
10 k
C9
330 mF
R5
1.3 M
R3
20 k
RD
2
AGND
8
1.5 V
Q Timer R
R_S Latch
R
R
S
SQ
S
Set Dominant
Overvoltage
Comparator
Low
Load Detect
1.08 x V_ref
15 V
UVLO
Zero
Current
Detect
13/8.0
1.2/1.0
Frequency
Clamp
D8 R13 D6
V_CC 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 V_CC
Pin 12
R10
10
C7
10 pF
320 mH
MUR130
D5
V_O
C3
220
MTP8N50E
R2
470 k
Quickstart
LEB
Leading Edge
6
Mult
5
C2 ^Multiplier
Blanking
CS
5.0 V
Reference
R7
0.1
0.25 W
0.01
4 Comp
1 V_ref
3 FB
C1
0.68
V_ref
C6
T: Coilcraft N2881−A
0.1
Primary = 62 turns of #22 AWG
R1
10 k
Secondary = 5 turns of #22 AWG
Not Used: D7, C8, R6, R9
Core = Coilcraft PT2510, EE25
Gap = 0.072″ total for a primary inductance (Lp) of 320 mH
Power Factor Controller Test Data
AC Line Input
DC Output
V_rms Pin PF I_fund
90 79.7 0.999 0.89
100 79.3 0.998 0.79
110 78.9 0.997 0.72
120 78.5 0.996 0.66
130 78.1 0.994 0.60
138 77.8 0.991 0.57
Current Harmonic Distortion (% I_fund)
THD 2 3 5 7
0.5 0.15 0.09 0.06 0.09
0.5 0.14 0.09 0.08 0.10
0.5 0.16 0.13 0.08 0.10
0.5 0.15 0.12 0.08 0.13
0.5 0.14 0.12 0.07 0.14
0.5 0.15 0.14 0.08 0.14
V_O(pp) V_O I_O P_O n(%)
3.0 244.4 0.31 76.01 95.4
3.0 242.9 0.31 75.54 95.3
3.0 242.9 0.31 75.30 95.4
3.0 243.0 0.31 75.57 96.3
3.0 243.0 0.31 75.57 96.7
3.0 243.0 0.31 75.57 97.1
Heatsink = AAVID Engineering Inc., 590302B03600, or 593002B03400
Figure 16. 80 W Power Factor Controller
http://onsemi.com
11