MC33368_11 Datasheet, PDF (12/16 Pages) ON Semiconductor – High Voltage GreenLine Power Factor Controller

MC33368
1N5406
C5
D2
D4
1.0
92 to EMI _D1
D3
270 Vrms Filter
16 Line
V_ref
V_ref
MC33368
R8
1.0 M
C9
2.2
RD
2
AGND
8
1.5 V
R5
1.3 M
Q Timer R
R_S 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
6.9 V
1.2/1.0
Frequency
Clamp
Quickstart
Leading Edge
Blanking
Mult
5
R3
C2 ^Multiplier
5.0 V
Reference
10 k
0.01
4 Comp
1 V_ref
C1
2.2
V_ref
C6
0.1
3 FB
Not Used: D7, C7, C8, R6, R9, R10
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
To V_CC
Pin 12
13
FC
9
LEB
6
CS
MUR460
D5
V_O
C3
330
MTW20N50E
R2
820 k
R7
0.1
T: Coilcraft N2880−A
L = 870 mHy
R1
10 k
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 (% I_fund)
V_rms Pin PF I_fund THD 2
3
5
7
90 190.4 0.995 2.11 5.8 0.16 0.32 0.24 0.80
120 192.1 0.997 1.60 3.2 0.08 0.17 0.07 0.30
138 192.7 0.997 1.40 0.9 0.08 0.24 0.03 0.15
180 194.3 0.995 1.08 0.9 0.04 0.18 0.04 0.08
240 189.3 0.983 0.80 0.7 0.08 0.21 0.08 0.06
268 186.3 0.972 0.71 0.6 0.11 0.32 0.10 0.10
Heatsink = AAVID Engineering Inc., 590302B03600
V_O(pp) V_O I_O P_O n(%)
3.6 398.0 0.44 175.9 92.4
3.6 398.9 0.44 177.1 92.2
3.6 402.3 0.45 179.0 92.9
3.6 409.1 0.45 182.9 94.1
3.6 407.0 0.45 181.1 95.7
3.6 406.2 0.44 180.4 96.8
Figure 17. 175 W Universal Input Power Factor Controller
http://onsemi.com
12