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 DVMA28 Series
HIGH RELIABILITY HYBRID EMI FILTERS
DESCRIPTION
The DVMA series of hybrid EMI filters is operable over the full military (-55 C to +125 C) temperature range with no power derating. The DVMA EMI filter is designed to filter conducted emissions of two DVSA or one DVHF series DC-DC converters. These filters are designed and manufactured in a facility qualified to ISO9001 and certified to MILPRF-38534 and MIL-STD-883.
FEATURES
* * * * * * * * * * * * High Reliability Wide Input Voltage Range: 0 to 50 Volts per MIL-STD-704 Up to 1.0 Amp Maximum Current 40 dB Minimum Attenuation at 500 kHz Industry Standard Pinout High Input Transient Voltage: 80 Volts for 1 sec per MIL-STD-704A Precision Projection Welded Hermetic Package Custom Versions Available Additional Environmental Screening Available Meets MIL-STD-461C and MIL-STD-461D EMC Requirements Protects Against Conducted Susceptibility Specified in MIL-STD-461C, CS01 and CS02 MIL-PRF-38534 Element Evaluated Components
Figure 1 - DVMA28 EMI Filter (Not To Scale)
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17921 Bothell-Everett Highway, Suite 108 Bothell, WA 98012 http://www.vpt-inc.com
Sales Information: Phone: (425) 487-4850 Fax: (425) 487-4802 E-mail: sales@vpt-inc.com
1
DVMA28 Series
SPECIFICATIONS (TCASE = -55C to +125C, VIN = +28V 5%, Full Load, Unless Otherwise Specified)
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous) Input Voltage (Transient, 1 second) Output Current Power Dissipation (Full Load, TCASE = +125C) 50 VDC 80 Volts 1.0 Amp 0.16 Watts Storage Temperature Lead Solder Temperature (10 seconds) Weight (Maximum) -65C to +150C 300C 15 Grams
Parameter STATIC
INPUT 2 Voltage Current
1,3
Conditions Min
Continuous Transient, 1 sec Continuous Continuous Continuous Continuous 0 40 13 100 0 0
DVMA28 Typ
28 VOUT = VIN - (IIN x RDC) 3.15 1.0 160 0.16 27 -
Units Max
50 80 1.0 V V A V A m W dB nF M MHrs
OUTPUT Voltage Current
3
DC RESISTANCE POWER DISSIPATION NOISE REJECTION CAPACITANCE ISOLATION MTBF (MIL-HDBK-217F)
2
Continuous f = 500 kHz Pin to Case Any Pin to Case, 500 VDC AIF @ TC = 55C
Notes:
1. Derate linearly to 0 at 135C. 2. Verified by qualification testing. 3. Rated current applies at any voltage.
BLOCK DIAGRAM
PIN 1 28V IN PIN 3 CASE PIN 2 28V OUT
IN COM PIN 5
Figure 2
OUT COM PIN 4
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2
DVMA28 Series
CONNECTION DIAGRAMS
DVMA28 EMI FILTER 1 28V IN 28 Vdc 28V OUT 5 2 DVSA2800S DC-DC CONVERTER 6 28V IN +V OUT LOAD INH OUT COM 2 1
+ 5 IN COM OUT COM 3 CASE 4
7 IN COM 8
Figure 3 - DVMA28 EMI Filter Hookup with Single Converter
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3
DVMA28 Series
CONNECTION DIAGRAMS
DVSA2800S DC-DC CONVERTER 6 28V IN +V OUT 1 LOAD 5 INH OUT COM 2
7
IN COM 8 CASE
DVMA28 EMI FILTER 1 28V IN 28 Vdc 28V OUT 2
DVSA2800S DC-DC CONVERTER 6 28V IN 5 INH OUT COM +V OUT 2 LOAD 1
+ 5 4
IN COM OUT COM 3
7
IN COM 8
CASE
Figure 4 - DVMA28 EMI Filter Hookup with Two Converters
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DVMA28 Series
EMI MEASUREMENT METHODS CONNECTION DIAGRAMS
TO 50 OHM INPUT
+V IN 10 uF
+V OUT CURRENT TRANSFORMER TO D.U.T. 10 uF
-V IN
-V OUT
Figure 5 - MIL-STD-461C Measurement Method (Feedthrough Capacitor)
+V IN
50 uH
+V OUT
TO 50 OHM INPUT
-V IN
50 uH
-V OUT
Figure 6 - MIL-STD-461D Measurement Method (LISN)
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5
DVMA28 Series
EMI PERFORMANCE CURVES
(TCASE = 25C, VIN = +28V 5%, Full Load, Unless Otherwise Specified)
Figure 7 - MIL-STD-461C DVSA2800D Without EMI Filter
Figure 8 - MIL-STD-461C DVSA2800D With DVMA28 EMI Filter
Figure 9 - MIL-STD-461C Two DVSA2800S's With DVMA28 EMI Filter
Figure 10 - MIL-STD-461D DVSA2800S With DVMA28 EMI Filter
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DVMA28 Series
PACKAGE SPECIFICATIONS
TOP VIEW
SIDE VIEW PIN 1 2 3 4 5 FUNCTION 28V IN 28V OUT CASE OUT COM IN COM
BOTTOM VIEW
Figure 11 - Package and Pinout (Dimensional Limits are 0.005" Unless Otherwise Stated)
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DVMA28 Series
PACKAGE PIN DESCRIPTION
Pin
1 2 3 4 5
Function
28V IN 28V OUT CASE OUT COM IN COM
Description
Positive Input Voltage Connection Positive Output Voltage Connection Case Connection Output Common Connection Input Common Connection
ENVIRONMENTAL SCREENING (Per MIL-STD-883 as referenced to MIL-PRF-38534, Class H)
Screening
Pre-Cap Inspection Temperature Cycling Constant Acceleration Burn-In
MIL-STD-883
Method 2017, 2032 Internal Procedure Method 1010, Condition C Method 1010, -55C to 125C Method 2001, 3000g Method 2001, 500g Method 1015, 160 hours at +125C 96 hours at +125C 24 hours at +125C Method 1014, Fine Leak, Condition A Method 1014, Gross Leak, Condition C Dip (1 x 10-3) MIL-PRF-38534, Group A 100% at 25C Method 2009
1
Standard (No Suffix)
*
Extended /ES
*
HB /HB
* * * *
* * * * *
*
Hermeticity Final Electrical Final Inspection
* * *
* * * *
* *
Note:
1.
100% R&R testing at -55C, +25C, and +125C with all test data included in product shipment.
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8
DVMA28 Series
ORDERING INFORMATION
DVMA 1
28 2
/HB 3
-
XXX 4
(1) Product Series
DVMA
(2) Nominal Input Voltage
28 28 Volts
(3) Screening Code
None /ES /HB Standard Extended HB
(4) Additional Screening Code
Contact Sales
Please contact your sales representative or the VPT Inc. Sales Department for more information concerning additional environmental screening and testing, different input voltage, output voltage, power requirement, source inspection, and/or special element evaluation for space or other higher quality applications.
CONTACT INFORMATION
To request a quotation or place an order please contact your sales representative or the VPT Inc. Sales Department at: Phone: Fax: E-mail: (425) 487-4850 (425) 487-4802 sales@vpt-inc.com
All information contained in this datasheet is believed to be accurate, however, no responsibility is assumed for possible errors or omissions. The products or specifications contained herein are subject to change without notice.
10013DSD
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