MC33362 データシートの表示（PDF） - Motorola => Freescale
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MC33362 Datasheet PDF : 12 Pages
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MC33362
Figure 20. 20 W Off–Line Converter
F1
1.0 A D4
D3
C1
1N4004
47
92 to 138
Vac Input
D2 D1
C4 8
1.0
6
R1
8.2 k
C3 7
1.5 nF
Mirror
Osc
PWM
Thermal
Startup
Reg
PWM Latch
S
Driver
Q
R
LEB
ILimit
270 µA
EA
4, 5, 12, 13
C5
4.0 nF
1
3
UVLO
14.5 V/
9.5 V 11
OVP
2.6 V
16
R6
100 k
1.0 W
D5
MUR
160
R5
39
C6
47 pF
R7
2.2 k
1.0 W
D6
MUR
120
D7
T1 MBR
2515L
C9 C10
330 330
L1
5.0 µH
C2
R8
10
220
R4
16 k
C8
330
R9
1 2.80 k
R3
2.7 k
2
C7
100 nF
IC2
MOC
31
8103 IC3
TL431B 2
5.05 V/4.0 A
DC Output
C11
220
C12
1.0
R10
2.74 k
5
4
9
R2
2.6 V
2.7 k
10
IC1 MC33362
Figure 21. Converter Test Data
Test
Conditions
Results
Line Regulation
Load Regulation
Output Ripple
Vin = 92 Vac to 138 Vac, IO 4.0 A
Vin = 115 Vac, IO = 1.0 A to 4.0 A
Vin = 115 Vac, IO = 4.0 A
∆ = 1.0 mV
∆ = 9.0 mV
Triangular = 10 mVpp
Spike = 60 mVpp
Efficiency
Vin = 115 Vac, IO = 4.0 A
78.4%
This data was taken with the components listed below mounted on the printed circuit board shown in Figure 22.
For high efficiency and small circuit board size, the Sanyo Os–Con capacitors are recommended for C8, C9, C10 and C11.
C8, C9, C10 = Sanyo Os–Con #6SA330M, 330 µF 6.3 V.
C11 = Sanyo Os–Con #10SA220M, 220 µF 10 V.
D7 = MBR2515L mounted on Aavid #592502B03400 heatsink.
L1 = Coilcraft S5088–A, 5.0 µH, 0.11 Ω.
T1 = Coilcraft S5069–A
Primary: 58 turns of # 26 AWG, Pin 1 = start, Pin 8 = finish.
Two layers 0.002″ Mylar tape.
Secondary: 4 turns of # 18 AWG, 2 strands bifiliar wound, Pin 5 = start, Pin 4 = finish.
Two layers 0.002″ Mylar tape.
Auxiliary: 10 turns of # 26 AWG wound in center of bobbin, Pin 2 = start, Pin 7 = finish.
Two layers 0.002″ Mylar tape.
Gap: 0.014″ total for a primary inductance (LP) of 330 µH.
Core and Bobbin: Coilcraft PT1950, E187, 3F3 material.
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MOTOROLA ANALOG IC DEVICE DATA
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