IRF AFV461F/ES Advanced analog emi filter Datasheet

PD - 94586A
AFV461 SERIES
ADVANCED ANALOG
EMI FILTER
Description
The AFV461 EMI filter will reduce the input line reflected ripple current of all DC/DC converter families to
levels below the CEO3 limits of MIL- STD-461. This
filter is intended for applications requiring compatibility to MIL-STD-704A.
These EMI filters are manufactured in a facility certified
to MIL-PRF-38534 and are available with military
screening. Four grades are offered with different screening options. Refer to Part Number section.
AFV
Features
n
n
n
n
n
4.0 amp Input Current - max.
40 dB Noise Reduction min. @100 KHz
-55°C to +125°C Operation
Military Screening
Compatible with all stanard 28 Volts Input
DC/DC Converters
n No Derating for -55°C to +125°C Operation
n No Tantalum Capacitors for High Reliability
Typical Application
+Vin
AFV461
EMI Filter
System
Bus
Input Return
+Vout
+Vin
Case
Case
Output Return
AHV28XX
(or Other)
DC/DC Converter
Input Return
+Vin
Case
RL
Output Return
AHV28XX
(or Other)
DC/DC Converter
Input Return
+Vout
+Vout
RL
Output Return
To other converters up
to rated output current
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1
11/21/02
AFV461 Series
Specifications
Parameter
Input Voltage
Condition
Steady State
Input Current
Output Voltage
Min
0
Typ
28
Max
40
80
DC
Ripple
1
4.0
1.0
Steady State
Steady State
DC Resistance (RDC)
Steady State
Power Dissipation
Max. DC Current
Noise Reduction
100 KHz to 50 MHz
Capacitance
Any pin to case
Isolation
Any pin to case 500VDC
100
Operating Temperature
Storage Temperature
Case
-55
-65
0.07
0.10
VDC
Amps
Amps RMS
VDC
VOUT = V IN - IIN (RDC)
Output Current
Unit
4.0
Amps
0.15
Ohms
1.6
Watts
40
dB
4200
pF
MΩ
+125
+150
Weight
39
°C
°C
grams
1. Typical Applications result in Vout within 2 % of Vin
Available Screening Levels and Process Variations for AFV461 Series
Requirement
MIL-STD-883
Method
Temperature Range
No
Suffix
ES
Suffix
HB
Suffix
CH
Suffix
-20 to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
Element Evaluation
MIL-PRF-38534
Internal Visual
2017
Temperature Cycle
¬
Yes
Yes
Yes
1010
Cond B
Cond C
Cond C
Constant Acceleration
2001
500g
Cond A
Cond A
Burn-in
1015
48hrs @ 85° C
96hrs @ 125°C
48hrs
160hrs @ 125°C
160hrs @ 125°C
MIL-PRF-38534
25°C
25°C
-55, +25, +125°C
-55, +25,
+125°C
Seal, Fine & Gross
1014
¬
Cond A, C
Cond A, C
Cond A, C
External Visual
2009
¬
Yes
Yes
Yes
Final Electrical
(Group A)
*
Per Commercial Standards
2
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AFV461 Series
AFV461 Block Diagram
10µH
5µH
1
2
0.2Ω
0.2Ω
1800
pFd
3
11µF
11µF
1800
pFd
5
4
Refer to last page for Pin Designation
Device Synchronization
Whenever multiple DC/DC converters are utilized in
a single system, significant low frequency noise may
be generated due to slight difference in the switching frequencies of the converters (beat frequency
noise). Because of the low frequency nature of this
noise (typically less than 10KHz), it is difficult to filter
out and may interfere with proper operation of sensitive systems (communications, radar or telemetry).
Advanced Analog offers an option, which provides
synchronization of multiple AHE/ATW type converters, thus eliminating this type of noise. To take advantage of this capability, the system designer must
assign one of the converters as the master. Then, by
definition, the remaining converters become slaves
and will operate at the masters’ switching frequency.
The user should be aware that the synchronization
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system is fail-safe; that is, the slaves will be continue
operating should the master frequency be interrupted for any reason. The layout must be such that
the synchronization output of the master device is
connected to the synchronization input of each slave
device. It is advisable to keep this run short to minimize the possibility of radiating the 250KHz switching frequency. A typical connection is illustrated on
the cover sheet of this document.
The appropriate converters must be ordered to take
advantage of this feature. After selecting the converters required for the system, a ‘MSTR’ suffix is
added for the master converter part number and an
‘SLV’ suffix is added for slave part number. See Part
Number section of the applicable converter data
sheets.
3
AFV461 Series
AFV461 Case Outlines
Non-Flanged
Flanged
0.040 D (1.02) X
0.26 L (6.60) P ins
0.050
(1 .27)
0.800
(20.32)
0.800
(2 0.32 )
0.040 D (1 .02 ) X
0.26 L (6 .60 ) Pin s
2
3
4
2
2.120
M ax
(53.85)
1.600
(40.64)
2.870
(7 2.90 )
M ax
1
1.120 M ax
(28.45)
2.550
(6 4.77 )
0.380
M ax
(9.65)
1
1.110
(2 8.19 )
2
+ Vout
3
Case
4
Output Return
5
Input Return
Ø 0 .16 2
(4 .12)
2 H oles
0.380
(9 .65)
M ax
AFV 461 F / CH
M o del
+ Vin
5
Part Numbering
Designation
1
4
1.600
(4 0.64 )
5
Pin Designation
Pin No.
2.110
(5 3.59 )
M ax
3
Screening
—
Applica ble
M ilita ry Test
Standard
, ES, HB, C H
C a se Style
O m it fo r S ta n d a rd
Available Standard Miliatary Drawing (SMD) Cross Reference
Standard
Military Drawing
PIN
91020-02HXA
91020-02HZA
Vendor
CAGE
Code
52467
52467
Vendor
Similar
PIN
AFV461/CH
AFV461F/CH
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. 11/02
4
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