PD - 94595
AME50461 SERIES
ADVANCED ANALOG
EMI FILTER
HYBRID / HIGH RELIABILITY
Description
The AME Series of EMI filters have been designed to
provide full compliance with the input line reflected
ripple current requirement specified by CE03 of MIL-
STD-461C over the full military temperature range while
operating in conjunction with the corresponding AFL
series of DC/DC converters. These filters are offered as
part of a complete family of conversion products pro-
viding single and dual output voltages while operating
from nominal +28, +50 or +270 input line voltage. Other
converters operating with a similar switching frequency
will also benefit by use of this device.
These EMI filters are hermetically packaged in two en-
closure variations, utilizing copper-core pins to mini-
mize resistive DC losses. Three lead styles are avail-
able, each fabricated with Advanced Analog’s rugged
ceramic lead-to-package seal assuring long term her-
metic seal integrity in harsh environments.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are available in four screen-
ing grades to satisfy a wide range of applications. The
CH grade is fully compliant to the requirements of MIL-
PRF-38534 for class H. The HB grade is fully processed
and screened to the class H requirement, but does not
include element evaluation to the class H requirement.
AME
Features
n
n
n
n
n
n
Up to 7.0 Ampere Output Current
Attenuation > 35dB @ 200 KHz
Low Profile (0.38”) Seam Welded Package
Ceramic Feedthru Copper-Core Pins
Operation Over Full Military Temp. Range
Standard Military Drawings Available
Both grades are tested to meet the complete
group “A” test specification over the full military
temperature range with no derating. Two grades
with more limited screening are also available
for use in less demanding applications. Varia-
tions in electrical, mechanical and screen re-
quirements can be accommodated. Contact Ad-
vanced Analog for special requirements.
Typical Connection Diagram
+Vin
+Vout
+Vin
System
Bus
AME50461
EMI Filter
Input Return
Output Return
AFL50XX
or Other
DC/DC Converter
+Vout
R
L
Input Return
Output Return
Note: Filter and Converter
Cases Should be
Electrically Connected
+Vin
AFL50XX
or Other
DC/DC Converter
+Vout
R
L
Input Return
Output Return
To Additional Converters up to Total
of Filter Rated Output Current
www.irf.com
1
12/13/02
AME50461 Series
Specifications
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Input Current
Lead Soldering Temperature
Case Temperature
Note 1
-300V to +300V
7.0 A
Operating
Storage
Note 2
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Electrical Characteristics
-55°C
≤
TCASE
≤
+125°C, -40
≤
VIN
≤
+40 unless otherwise specified
Parameter
INPUT VOLTAGE
Group A
Subgroups
Test Conditions
Steady State
Transient
OUTPUT VOLTAGE
OUTPUT CURRENT
DC RESISTANCE
Note 3
Note 2
Min
-100
-300
Nom
Max
+100
+300
Unit
V
DC
V
DC
1, 2, 3
V
OUT
= V
IN
- I
IN
(R
DC
)
7.0
A
DC
mΩ
Note 4
1
T
C
= 25°C
T
C
= 125°C
Maximum Current
T
C
= 25°C
T
C
= 125°C
200 KHz - 500 KHz
500 KHz - 1 MHz
1 MHz - 50 MHz
35
60
65
100
40
95
60
100
POWER DISSIPATION
2.94
4.90
w
NOISE REDUCTION
dB
MΩ
nF
gms
ISOLATION
CAPACITANCE
DEVICE WEIGHT
1
Any Pin to Case
Tested @ 500VDC
Measured Between Any Pin and Case
Slight Variations with Case Style
Notes to Specifications
1.
2.
3.
4.
Operation above maximum ratings may cause permanent damage to the device. Operation at maximum ratings may degrade
performance and affect reliability.
Device can tolerate ± 300 Volt transient whose duration is
≤
100 ms when R
S
≥
0.5
Ω.
Derate Output Current linearly from 100% at 125°C to 0 at 135°C.
DC resistance is the total resistance of the device and includes the sum of the
input
to
output
resistance and the
return in
to
return
out
resistance paths.
2
www.irf.com
AME50461 Series
AME50461 Block Diagram
Input
1
2
20 nF
12
11
10
Output
3
Case
4
20 nF
9
Input
Return
5
6
8
7
Output
Return
Refer to last page for Pin Designation
Circuit Operation and Application Information
The AME series of filters employ three stages of fil-
tering in a low pass configuration designed to at-
tenuate the higher frequency components of ripple
currents generated by high frequency switching DC/
DC converters. The Block Diagram describes the
general arrangement of the principal elements which
have been connected to provide both differential and
normal mode buffering between the input and out-
put terminals.
Employing only passive elements, AME filter opera-
tion is initiated simply by insertion into the input power
path between one or more DC/DC converters and
their input DC voltage bus. In this connection, out-
put pins of the filter will be connected to input pins of
the converters.
When a single AME filter is used in conjunction with
multiple DC/DC converters, the use will be limited
to the maximum output current capability specified
in the AME electrical table.
1
A typical connection
utilizing one filter to drive two converters is illus-
trated on page1.
Although expressly designed to complement the AFL
series of DC/DC converters, the AME50461 filters
can be successfully operated in conjunction with
other converters in the Advanced Analog line in-
cluding the ASA, AHF, AHV and ATR series.
1
To calculate the input current (
i in
) requirement of any one converter, first determine the maximum output power by
multiplying output voltage by maximum load current, divide this power by the efficiency to obtain input power and then divide
input power by input voltage to obtain the input current (
iin).
Note that to obtain worst case input current, you must use
maximum load current, minimum efficiency and minimum line voltage in this calculation.
www.irf.com
3
AME50461 Series
AME50461 Case Style Outlines
Case X
Case W
Pin Variation of Case Y
3.000
2.760
ø 0.128
0.050
0.050
0.250
12
0.250
1.000
Ref
7
0.25 typ
12
7
1
6
1.260 1.500
0.200 Typ
Non-cum
Pin
ø 0.040
1.000
2.500
0.220
0.220
2.800
0.525
0.238 max
Pin
ø 0.040
2.975 max
0.42
0.380
Max
0.380
Max
Case Y
Case Z
Pin Variation of Case Y
1.150
0.300
ø 0.140
0.050
0.050
0.250
1
6
0.250
1.500 1.750 2.00
1.000
Ref
0.200 Typ
Non-cum
Pin
ø 0.040
1.000
Ref
1.750
2.500
0.375
0.220
Pin
ø 0.040
0.220
0.36
2.975 max
0.238 max
0.380
Max
2.800
0.525
0.380
Max
Tolerances, unless otherwise specified:
.XX
.XXX
=
=
±0.010
±0.005
4
www.irf.com
AME50461 Series
Available Screening Levels and Process Variations for AME50461 Series
MIL-STD-883
Method
No
Suffix
-20 to +85°C
ES
Suffix
-55°C to +125°C
HB
Suffix
-55°C to +125°C
CH
Suffix
-55°C to +125°C
MIL-PRF-38534
2017
1010
2001
1015
MIL-PRF-38534
& Specification
1014
2009
Cond A
¬
Cond A, C
Yes
Cond A, C
Yes
Cond A, C
Yes
48hrs@ 85°C
25°C
¬
Yes
Cond B
500g
48hrs@ 125°C
25°C
Yes
Cond C
Cond A
160hrs @ 125°C
-55, +25, +125°C
Yes
Cond C
Cond A
160hrs @ 125°C
-55, +25, +125°C
Requirement
Temperature Range
Element Evaluation
Internal Visual
Temperature Cycle
Constant Acceleration
Burn-in
Final Electrical
(Group A)
Seal, Fine & Gross
External Visual
*
Per Commercial Standards
Pin Designation
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Designation
Positive Input
Positive Input
Positive Input
Input Return
Input Return
Input Return
Output Return
Output Return
Output Return
Positive Output
Positive Output
Positive Output
Model
Input Voltage
28 = 28V
50 = 50V
270 = 270V
Part Numbering
AME 50 461 X / CH
Screening
—
, ES, HB, CH
Case Style
W, X, Y, Z
Applicable
Military Test
Standard
WORLD HEADQUARTERS:
233 Kansas St., El Segundo, California 90245, Tel: (310) 322 3331
ADVANCED ANALOG:
2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 12/02
www.irf.com
5
京公网安备 11010802033920号
EEWORLD
