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ADDC02828SA 반도체 회로 부품 판매점

28 V/100 W DC/DC Converter with Integral EMI Filter



Analog Devices 로고
Analog Devices
ADDC02828SA 데이터시트, 핀배열, 회로
a
FEATURES
28 V dc Input, 28 V dc @ 3.6 A, 100 W Output
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
28 V/100 W DC/DC Converter
with Integral EMI Filter
ADDC02828SA
FUNCTIONAL BLOCK DIAGRAM
– SENSE
+ SENSE
ADJUST
STATUS
VAUX
INHIBIT
SYNC
ISHARE
TEMP
–VIN
+VIN
OUTPUT SIDE
CONTROL
CIRCUIT
INPUT SIDE
CONTROL
CIRCUIT
EMI FILTER
FIXED
FREQUENCY
DUAL
INTERLEAVED
POWER TRAIN
OUTPUT
FILTER
RETURN
RETURN
SENSEREF
SENSEREF
+VOUT
+VOUT
ADDC02828SA
GENERAL DESCRIPTION
The ADDC02828SA hybrid dc/dc converter with integral EMI
filter offers the highest power density of any dc/dc converter
available today with its features and in its power range. The
converter with integral EMI filter is a fixed frequency, 1 MHz,
square wave switching dc/dc power supply. It is not a variable
frequency resonant converter. In addition to many protection
features, this converter has system level features that allow it to
be used as a component in larger systems as well as a stand-
alone power supply. The unit is designed for high reliability and
high performance applications where saving space and/or weight
is critical.
The ADDC02828SA is available in three screening grades; all
grades use a hermetically sealed, molybdenum based hybrid
package. Contact factory for MIL-STD-883 device availability.
PRODUCT HIGHLIGHTS
1. 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 Input Voltage Range section.
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. 0
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: 617/329-4700 World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
© Analog Devices, Inc., 1997


ADDC02828SA 데이터시트, 핀배열, 회로
ADDC02828SA–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (TC = +25؇C, VIN = 28 V dc ؎0.5 V dc, unless otherwise noted; full temperature range is
–55؇C to +90؇C; all temperatures are case and TC is the temperature measured at the center of the package bottom.)
Parameter
Case
Temp
Test
Level Conditions
ADDC02828SA
Min Typ Max Units
INPUT CHARACTERISTICS
Steady State Operating Input Voltage Range1
Abnormal Operating Input Voltage Range
(Per MIL-STD-704D)1
Input Overvoltage Shutdown
No Load Input Current
Disabled Input Current
Full
Full
+25°C
+25°C
+25°C
VI
VI
I
VI
VI
IO = 0.36 A to 3.6 A
IO = 0.36 A to 2.9 A
18 28 40 V
16 50 V
50 52.5 55 V
85 100 mA
1 5 mA
OUTPUT CHARACTERISTICS2, 3
Output Voltage (VO)
Line Regulation
Load Regulation
Output Ripple/Noise4
Output Current (IO)
Output Overvoltage Protection
Output Current Limit
Output Short Circuit Current
+25°C
Full
Full
+25°C
+25°C
+25°C
Full
+25°C
+25°C
+25°C
I
VI
VI
VI
VI
I
VI
V
V
I
IO = 0.36 A to 3.6 A, VIN = 18 V to 40 V dc
IO = 0.36 A to 3.6 A, VIN = 18 V to 40 V dc
IO = 0.36 A to 2.9 A, VIN = 16 V to 50 V dc
IO = 3.6 A, VIN = 18 V to 40 V dc
VIN = 28 V dc, IO = 0.36 A to 3.6 A
IO = 3.6 A, 5 kHz – 2 MHz BW
VIN = 18 V to 40 V dc
IO = 3.6 A, Open Remote Sense Connection
VO = 90% VOUT Nom
27.44 28.00
26.88
26.88
10
15
50
0.36
125
130
28.56 V
29.12 V
29.12 V
60 mV
45 mV
100 mV p-p
3.6 A
% VO Nom
% IO max
11 A
ISOLATION CHARACTERISTICS
Isolation Resistance
+25°C I
Input to Output or Any Pin to Case at 500 V dc
100
M
DYNAMIC CHARACTERISTICS4
Maximum Output Voltage Deviation Due to
Step Change in Load
Response Time Due to Step Change in Load
+25°C
+25°C
Soft Start Turn-On Time5
+25°C
I
I
I
IO = 1.8 A to 3.6 A or 3.6 A to 1.8 A, di/dt = 0.5 A/µs
IO = 1.8 A to 3.6 A or 3.6 A to 1.8 A, di/dt = 0.5 A/µs
Time for VOUT to Return within 2% of Final Value
IO = 3.6 A, From Inhibit High to Status High
1.8 V
150 µs
15 20 ms
THERMAL CHARACTERISTICS
Efficiency
Hottest Junction Temperature6
+25°C
Full
+25°C
Full
+90°C
I
VI
I
VI
V
IO = 2.2 A
IO = 2.2 A
IO = 3.6 A
IO = 3.6 A
IO = 3.6 A
81 85
80
81 85
80
110
%
%
%
%
°C
CONTROL CHARACTERISTICS
Clock Frequency
ADJUST (Pin 3) V ADJ
STATUS (Pin 4)
VOH
VOL
VAUX (Pin 5)
VO (nom)
INHIBIT (Pin 6)
VIL
IIL
VI (Open Circuit)
SYNC (Pin 7)7
VIH
IIH
ISHARE (Pin 8)
TEMP (Pin 9)
Full
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
VI
I
I
I
I
I
I
I
I
I
I
V
IO = 0.36 A
IOH = 400 µA
IOL = 1 mA
IAUX = 5 mA, Load Current = 3.6 A
VIL = 0.5 V
VIH = 7.0 V
IO = 3.6 A
0.85
5.5 5.6
0.99 MHz
5.7 V
2.4 4.0
V
0.15 0.7 V
12.85 13.1 13.35 V
0.5 V
1.2 mA
15 V
4.0
2.70 2.80
3.90
V
150 µA
2.90 V
V
NOTES
150 V dc upper limit rated for transient condition of up to 50 ms. 16 V dc lower limit rated for continuous operation during emergency condition. Steady state and
abnormal input voltage range require source impedance sufficient to ensure input stability at low line. See sections entitled System Instability Considerations and
Input Voltage Range.
2Measured at the remote sense points.
3Unit regulates output voltage to zero load.
4CLOAD = 0.
5Output is fully loaded into a constant resistive load.
6Refer to Thermal Characteristics section for more information.
7Unit has internal pull-down; refer to section entitled Pin 7 (SYNC).
Specifications subject to change without notice.
–2– REV. 0




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