MC33363A Просмотр технического описания (PDF) - ON Semiconductor
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MC33363A Datasheet PDF : 14 Pages
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MC33363A
F1
1.0 A
D4
D3
C1
1N4006
47
92 to 276
Vac Input
D2 D1
C4 8
1.0
6
R1
13 k
C3 7
1200 pF
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
C6
180 k
47 pF
1.0 W
R7
D5
2.2 k
MUR
1.0 W
1100E
D6
R5 MUR
39 120
D7
T1 MBR
1635
L1
C9 C10 5.0 μH 5.05 V/3.0 A
330 330
DC Output
+
C2
R8
10
220
R4
5.1 k
C8
330
R9
1 2.80 k
C11
R3
1.0 k
2
C7
100 nF
220
IC2
MOC
31
C12
8103 IC3
TL431B 2
1.0
−
R10
2.74 k
5
4
9
R2
2.6 V
2.7 k
10
IC1 MC33363A
Figure 22. 15 W Off−Line Converter
Table 1. CONVERTER TEST DATA
Test
Conditions
Results
Line Regulation
Vin = 92 Vac to 276 Vac, IO 3.0 A
D = 1.0 mV
Load Regulation Vin = 115 Vac, IO = 0.75 A to 3.0 A
D = 5.0 mV
Vin = 230 Vac, IO = 0.75 A to 3.0 A D = 5.0 mV
Output Ripple
Vin = 115 Vac, IO = 3.0 A
Triangular = 2.0 mVpp, Spike = 32 mVpp
Vin = 230 Vac, IO = 3.0 A
Triangular = 2.0 mVpp, Spike = 34 mVpp
Efficiency
Vin = 115 Vac, IO = 3.0 A
76.8%*
Vin = 230 Vac, IO = 3.0 A
76.8%
This data was taken with the components listed below mounted on the printed circuit board shown in Figure 23.
*With MBR2535CTL, 78.8% efficiency. PCB layout modification is required to use this rectifier.
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 mF 6.3 V.
C11 = Sanyo Os−Con #10SA220M, 220 mF 10 V.
L1 = Coilcraft S5088−A, 5.0 mH, 0.11 W.
T1 = Coilcraft U6875−A
Primary: 77 turns of # 28 AWG, Pin 1 = start, Pin 8 = finish.
Two layers 0.002″ Mylar tape.
Secondary: 5 turns of # 22 AWG, 2 strands bifiliar wound, Pin 5 = start, Pin 4 = finish.
Two layers 0.002″ Mylar tape.
Auxiliary: 13 turns of # 28 AWG wound in center of bobbin, Pin 2 = start, Pin 7 = finish.
Two layers 0.002″ Mylar tape.
Gap: 0.011″ total for a primary inductance (LP) of 620 mH.
Core and Bobbin: Coilcraft PT1950, E187, 3F3 material.
http://onsemi.com
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