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기능 28 V/66 W/100 W DC/DC Converters with Integral EMI Filter
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5962-9760101HXC 데이터시트, 핀배열, 회로
a
28 V/66 W/100 W DC/DC Converters
with Integral EMI Filter
FEATURES
28 V dc Input, 5 V dc @ 20 A, 100 W Output
(ADDC02805SA)
28 V dc Input, 3.3 V dc @ 20 A, 66 W Output
(ADDC02803SC)
Integral EMI Filter Designed to Meet MIL-STD-461D
Low Weight: 80 Grams
NAVMAT Derated
Many Protection and System Features
APPLICATIONS
Commercial and Military Airborne Electronics
Missile Electronics
Space-Based Antennae and Vehicles
Mobile/Portable Ground Equipment
Distributed Power Architecture for Active Array Radar
ADDC02803SC/ADDC02805SA
FUNCTIONAL BLOCK DIAGRAM
– SENSE
+ SENSE
ADJUST
STATUS
VAUX
INHIBIT
SYNC
ISHARE
TEMP
–VIN
+VIN
OUTPUT SIDE
CONTROL
CIRCUIT
INPUT SIDE
CONTROL
CIRCUIT
EMI FILTER
ADDC02803SC
ADDC02805SA
FIXED
FREQUENCY
DUAL
INTERLEAVED
POWER TRAIN
OUTPUT
FILTER
RETURN
RETURN
RETURN
+VOUT
+VOUT
+VOUT
GENERAL DESCRIPTION
The ADDC02803SC and ADDC02805SA hybrid dc/dc con-
verters with integral EMI filters offer the highest power density
of any dc/dc converter with their features and in their power
range available today. The converters with integral EMI filters
are fixed frequency, 1 MHz square wave switching dc/dc power
supplies. They are not variable frequency resonant converters.
In addition to many protection features, these converters have
system level features that allow them to be used as components
in larger systems as well as stand-alone power supplies. The
units are designed for high reliability and high performance
applications where saving space and/or weight are critical.
The ADDC02803SC and ADDC02805SA are available in
three screening grades; all grades use a hermetically sealed,
molybdenum based hybrid package. Three screening levels
are available, including military SMD.
PRODUCT HIGHLIGHTS
1. Up to 60 W/cubic inch power density with an integral EMI
filter designed to meet all applicable requirements in MIL-
STD-461D when installed in a typical system setup.
2. Light weight: 80 grams
3. Operational and survivable over a wide range of input condi-
tions: 16 V–50 V dc; survives low line, high line and positive
and negative transients. See section entitled: Input Voltage
Range.
4. High reliability; NAVMAT derated
5. Protection features include:
Output Overvoltage Protection
Output Short Circuit Current Protection
Thermal Monitor/Shutdown
Input Overvoltage Shutdown
Input Transient Protection
6. System level features include:
Current Sharing for Parallel Operation
Inhibit Control
Output Status Signal
Synchronization for Multiple Units
Input Referenced Auxiliary Voltage Supply
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1998




5962-9760101HXC pdf, 반도체, 판매, 대치품
64
5 10 15 20 25 30 35 40 45 50 55 60 65 70
OUTPUT POWER – WATTS
ADDC02803SC/ADDC02805SA–Typical Performance Curves
82
28V
80
16.0
15.5
78
40V 18V
76
74
72
VIN = 28V
70
VO = 5V
TC = +25؇C
68
10 20 30 40 50 60 70 80 90 100
OUTPUT POWER – Watts
Figure 1. Efficiency vs. Line and Load at +25°C
(ADDC02805SA)
15.0
14.5
14.0
ADDC02803SC
ADDC02805SA
13.5
13.0
30 35 40 45 50 55 60 65 70 80 90 100
MAXIMUM POWER OUTPUT – Watts
Figure 4. Low Line Dropout vs. Load at +90°C Case
Temperature
80
78
18V
28V
76
40V
74
72
70
68
66
64
5 10
15 20 25 30 35 40 45 50 55 60 65 70
OUTPUT POWER – Watts
Figure 2. Efficiency vs. Line and Load at +25°C
(ADDC02803SC)
5.100
5.050
5.000
4.950
4.900
–55 –35 –15
5
25 45 65 85 105 125
TCASE
Figure 5. Output Voltage vs. Case Temperature (°C)
(ADDC02805SA)
81
ADDC02805SA
80
79
ADDC02803SC
78
77
76
75
–55 –35 –15
5
25 45 65 85
TCASE ؇C
Figure 3. Efficiency vs. Case Temperature (°C)
(at Nominal VIN, 75% Max Load)
3.340
3.320
3.300
3.280
3.260
–55 –45 –35 –25 –15 –5 5 15 25 35 45 55 65 75 85 95
TCASE
Figure 6. Output Voltage vs. Case Temperature (°C)
(ADDC02803SC)
–4– REV. A

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5962-9760101HXC 전자부품, 판매, 대치품
Typical EMI Curves and Test Setup–ADDC02805SA
130
CONDUCTED EMISSIONS CE101
166
RE101 MIL-STD-461D
110 146
90 126
RE101–1
CE101–1 4.5 AMPS
70 106
50 86
30
0.0001
0.001
FREQUENCY – MHz
0.01
Figure 19. Conducted Emissions, MIL-STD-461D, CE101,
+28 V Hot Line, 100 W Load
66
0.0001
0.001
0.01
FREQUENCY – MHz
0.1
Figure 21. Radiated Emissions, MIL-STD-461D, RE101,
100 W Load
130
CONDUCTED EMISSIONS CE102
110
90
70
LIMIT 28VDC
50
30
0.01
0.1 1
FREQUENCY – MHz
10
Figure 20. Conducted Emissions, MIL-STD-461D, CE102,
+28 V Hot Line, 100 W Load
90
RADIATED EMISSIONS RE102
70
50
30 RE102–2
10
–30
0.01
0.1 1 10 100
FREQUENCY – MHz
1000
Figure 22. Radiated Emissions, MIL-STD-461D, RE102,
Vertical Polarity, 100 W Load
LISN
LISN
TWO METERS OF
TWISTED CABLE
1
100F
2F
82nF
+VIN
+VOUT
82nF
–VIN
RETURN
CASE
0.1F
1/4
GROUND PLANE
NOTE: 100F CAPACITOR AND 1RESISTOR PROVIDE STABILIZATION FOR 100H DIFFERENTIAL SOURCE INDUCTANCE
INTRODUCED BY THE LISNs. REFER TO SECTION ON EMI CONSIDERATIONS FOR MORE INFORMATION.
Figure 23. Schematic of Test Setup for EMI Measurements
REV. A
–7–

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28 V/66 W/100 W DC/DC Converters with Integral EMI Filter

Analog Devices
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