FGDS-2A-50V/S - GAIA Converter

MIL-STD-461 EMI INPUT FILTER

FGDS-2A-50V up to 2A CURRENT

Gaia Converter FC05-050.07/13 Revision F

REDEFINING THE SOURCE OF POWER

For locations, phone, fax, E-Mail see back cover

2A EMI Filter Module

9 to 50 VDC Input Range

MIL-STD-461C/D/E/F & DO-160C/D/E/F/G Compliant

1-General

The GAIA Converter filter module FGDS-2A-50V

provides a state-of-the-art product to fulfill

Electromagnetic Interferences (EMI) requirements

for Aerospace/Defence applications.

The FGDS-2A-50V complies with major standards

including :

• the US MIL-STD-461 rev C, D, E and rev F

• the international DO-160 revC, D, E F and rev G

In particular, the filter module is compliant with

the following requirements of MIL-STD-461 and

DO-160 standards :

• MIL-STD-461C Part 2. & 3. requirements :

• Conducted Emission (CE)

• CE03, power leads, emission over

15KHz to 50MHz, narrowband, Class A1

• CE03, power leads, emission over

15KHz, broadband, Class A1 curve#

1 & 2

• Conducted Susceptibility (CS)

• CS01, power leads, frequency over 30Hz

to 50KHz, class A1, consult factory

for criteria

• CS02, power leads, frequency 15KHz

to 400MHz, class A1

• CS06, power leads, spike #1

• MIL-STD-461D/E/F Part 2. & 3. requirements :

• Conducted Emission (CE)

• CE102, power leads, emission over

10KHz to 10MHz, basic curve

• Conducted Susceptibility (CS)

• CS101, power leads, frequency 30Hz

to 150KHz, curve #1

• CS114, bulk cable injection, frequency

10KHz to 400MHz

• CS115, spikes, bulk cable injection,

calibrated spike

• CS116, damped sinusoidal transient

• DO-160-C/D/E/F/G requirements :

• Conducted Emission (CE)

• Section 21 power lines, emission over

15KHz to 30MHz and 152MHz, category

B, AZ & LMH

• Conducted Susceptibility (CS)

• Section 20 power lines, frequency 10KHz

to 400MHz

In addition, this filter withstands in a transparent

state without dammage the transient requirements

of : • MIL-STD-704A with 80V/100ms

• MIL-STD-1275B with 100V/50ms

The FGDS-2A-50V is suitable for all GAIA Converter

DC/DC converters and architecture

• from 4W up to 50W output power

• up to 2A output current

• up to 50V permanent input voltage.

2-Product Selection

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• To comply with MIL-STD-461D/E/F power leads :

• CE 102 : Emission requirement over 10KHz to 10MHz

• CS 101 : Susceptibility requirement over 30Hz to 150KHz

• CS 114 : Susceptibility requirement over 10KHz to 400MHz

• CS 115 : Susceptibility requirement for spikes

• To comply with MIL-STD-461C power leads :

• CE 03 : Emission requirement over 15KHz to 50MHz

• CS 01 : Susceptibility requirement over 30Hz to 50KHz

• CS 02 : Susceptibility requirement over 15KHz to 400MHz

• CS 06 : Susceptibility requirement for spikes

• To comply with DO-160C/D/E/F/G power lines :

• Conducted emission requirement over 15KHz to 152MHz

• Conducted susceptibility requirement over 10KHz to 400MHz

• Temperature range :

• operating temperature : -40°C/+105°C case

• storage temperature : -55°C/+125°C

• RoHS process

Options :

/T : option for -55°C start up operating temperature

/S : option for screening and serialization

FGDS-2A-50V option

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

Hi-Rel

Grade

3- Electrical Specifications

Data are valid at +25°C, unless otherwise specified.

Parameter Conditions Limit or

typical Units FGDS-2A-50V

Input

Nominal input voltage Full temperature range Nominal VDC 28

Permanent input

voltage range (Ui) Full temperature range Min. - Max. VDC 9 - 50

Transient input voltage Full load Maximum

Maximum

VDC/ms

80/100

100/50

Output

Permanent output current

Full temperature range

up to 105°C case

Ui min. to max.

Maximum A 2

Permanent output power

Full temperature range

up to 105°C case

Ui min. to max.

Maximum W 50

Power dissipation Maximum output current Maximum W 1

General

Electrical strengh test

voltage

Case to any pin

Gnd pin to any other pin

Minimum

VDC

500

Reliability data MTBF

according MIL-HDBK-217F

Conditions Gf

Conditions AIC

@40°C

@85°C

@40°C

@85°C

Hours

23 000 000

6 000 000

12 300 000

3 300 000

EMI compliance

Conducted emission

Power leads

Power lines

MIL-STD-461C

MIL-STD-461D/E/F

DO-160C cat A, B & Z

DO-160D/E/F/G cat BLMH

CE03

CE102

Section 21

See section 6

Conducted susceptibility

0.1 Ohm impedance

50 Ohm impedance

Imax = 10A

50 Ohm impedance

MIL-STD-461C

MIL-STD-461D/E/F

DO-160C/D/E/F/G

CS06 : 200V/0,15µs

CS115

CS116

Section 20

Compliant

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

Hi-Rel

Grade

4- EMI Filter Electrical Schematics

The GAIA Converter FGDS-2A-50V is suitable for all GAIA Converter DC/DC converters and combinations :

• from 4W up to 50W total output power and up to 2A output current

• up to 50V permanent input voltage and up to 100V transient input voltage during 50ms

4-1 EMI Filter Electrical Schematics in Front of MGDM-04/10/18/20/26 & CGDM Series

The GAIA Converter FGDS-2A-50V can be used directly in front of any DC/DC converter and combinations

using of MGDM-04, MGDM-10, MGDM-18, MGDM-20, MGDM-26 and CGDM series. For better EMI performance and

stability purpose, GAIA Converter recommends to use a RC cell (see section 4-4) together with a common mode

noise capacitance Cc (10nF typical) connected between Gin and Gout pins of each DC/DC converter.

MGDM-series

Gnd

EMI input filter

FGDS-2A-50V

4-2 EMI Filter Electrical Schematics in front of MGDM-25, MGDM-35 Series

The GAIA Converter FGDS-2A-50V can be used by adding an LC cell in front of any DC/DC converter and combinations

of MGDM-25, MGDM-35 series. For better EMI performance and stability purpose, GAIA Converter recommends to

use a RC cell (see section 4-4) and a LC cell (L=4.7µH, C=4.7µF) together with a common mode noise capacitance

Cc (10nF typical) connected between Gin and Gout pins of each DC/DC converter.

MGDM-series

LC cell

Gnd

EMI input filter

FGDS-2A-50V

4-3 EMI Filter Electrical Schematics in Front of Pre-regulator PGDS Series :

The GAIA Converter FGDS-2A-50V can be used directly in front of pre-regulators PGDS series with any DC/DC

converter and combinations of MGDM-04, MGDM-10, MGDM-18, MGDM-20, MGDM-26 and CGDM series.

For better EMI performance and stability purposes, GAIA Converter recommends to use a RC cell (see section 4-4)

together with a common mode noise capacitance Cc (10nF typical) connected between Gin and Gout pins of each converter.

MGDM-series

Gnd

EMI input filter

FGDS-2A-50V

On/off

PGDS50

Vimes

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

Hi-Rel

Grade

4- EMI Filter Electrical Schematics (continued)

4-3 R*C* Network Discussion

The RC damping network is used for stability purposes in negative input impedance systems such as DC/DC converters.

DC/DC converters are negative input impedance systems whereas, filters are composed of passive elements and display a

positive output impedance to the converter.

To ensure the stability of the whole system “LISN + input Filter + DC/DC converters”, the filter output impedance must be

kept below the converter’s input impedance, which is given by the following formula :

Vin2 Vin2 x η

Zin = ____ = _________

Pin Po

where :

Vin is the converter input voltage,

Pin is the converter input power,

Po is the converter output power

η is the efficiency of the converter.

As it can be seen from the preceding equation, the worst case for system’s stability is at Vinmin, so this is the condition

which should be considered for the filter design.

As the filter is made of low ESR inductors and ceramic capacitors, it has an important quality factor Q which causes a sharp

increase of the filter’s output impedance at the resonant frequency and leads to a violation of the stability criteria, causing

the system to break into oscillations.

Consequently, the values of RC network has to be adjusted to dampen sufficiently the filter’s resonance and make its

output impedance lower than the converter’s input impedance.

The value of the RC network strongly depends on the application’s conditions (input voltage range and total power drawn

from the source as well as the standards that the equipment has to meet MIL-STD-461 or DO-160 ... ) this because

measurements method (LISN) differs from one standard to another affecting the C value.

In most applications a low ESR aluminium electrolytic capacitor can be used for damping the network and it’s internal

ESR value will be enough to dampen the input voltage without adding external resistor.

The table hereafter summarizes the recommended capacitor value at 100% output load for various power according to

DO160 and to MIL-STD-461 standards. The capacitor value can be linearly reduced depending on output power; for

example, it can divided by 2 at 50 % load...

Total Power 4W 10W 25W 35W

Capacitor Value for

MIL-STD-461 standards 22 µF 47 µF 100 µF 220 µF

Capacitor Value for

DO-160 standards 10 µF 10 µF 22 µF 33 µF

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

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Grade

5- MIL-STD-461C/D/E/F Conducted Emission Tests Set-Up

5-2 MIL-STD-461D/E/F Measurement Method

The conducted noise emission measurement

method is described in the MIL-STD-461D/E stan-

dards.

The «DUT» (Device Under Test) is powered thru

a 2 meters length parallel wire.

One end is terminated with the DUT and the other

end is terminated with LISN networks.

The measurements are made with a measurement

receiver, the unit being dBµV

To 50 ohms

input receiver

+28V out

+28V in

Return out

Return in

DUT

LISN

To 50 ohms

termination

5-1 MIL-STD-461C Measurement Method

The conducted noise emission measurement

method of MIL-STD-461C is described in MIL-

STD-462C standard.

The «DUT» (Device Under Test) is powered thru

a 1 meter lengh parallel wire.

One end is terminated with the DUT and the other

end is terminated with 10µF capacitors to the

ground plane. The measurements are made with

a current probe, the unit of measurement being

dBµA.

Current probe

To 50 ohms input

+28V out

+28V in

Return out

Return in

10µF

DUT

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

Hi-Rel

Grade

6- MIL-STD-461C, MIL-STD-461E & DO-160G Conducted Emission Level Results

MIL-STD-461C : MGDS-O4-H-C with FGDS-2A-50V MIL-STD-461E : MGDS-O4-H-C with FGDS-2A-50V

MIL-STD-461C : MGDS-10-J-C with FGDS-2A-50V MIL-STD-461E : MGDS-10-J-C with FGDS-2A-50V

MIL-STD-461C : 3 x MGDS-10-J-C with FGDS-2A-50V MIL-STD-461E : 3 x MGDS-10-J-C with FGDS-2A-50V

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

Hi-Rel

Grade

6- MIL-STD-461C, MIL-STD-461E & DO-160G Conducted Emission Level Results

DO-160G : MGDS-04-H-C with FGDS-2A-50V DO-160G : MGDS-04-J-C with FGDS-2A-50V

DO-160G : MGDS-10-H-C with FGDS-2A-50V DO-160G : MGDS-10-J-C with FGDS-2A-50V

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

Hi-Rel

Grade

6- MIL-STD-461C, MIL-STD-461E & DO-160G Conducted Emission Level Results

MIL-STD-461C : MGDS-26-H-C with FGDS-2A-50V MIL-STD-461E : MGDS-26-H-C with FGDS-2A-50V

MIL-STD-461C : MGDS-35-H-C with FGDS-2A-50V MIL-STD-461E : MGDS-35-H-C with FGDS-2A-50V

DO-160G : MGDS-35-H-C with FGDS-2A-50V DO-160G : MGDS-35-H-C with FGDS-2A-50V

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

Hi-Rel

Grade

7- Environmental Qualifications

The modules have been subjected to the following environmental qualifications.

Characteristics Conditions Severity Test procedure

Climatic Qualifications

Life at high

temperature

Duration

Temperature / status of unit

Test D : 1 000 Hrs

@ 105°C case, unit operating

@ 125°C ambient, unit not operating

MIL-STD-202G

Method 108A

Altitude

Altitude level C

Duration

Climb up

Stabilization

Status of unit

40 000 ft@-55°C

30 min.

1 000 ft/min to 70 000 f@-55°C,

30 min.

unit operating

MIL-STD-810E

Method 500.3

Humidity cyclic

Number of cycle

Cycle duration

Relative humidity variation

Temperature variation

Status of unit

Cycle I : 24 Hrs

60 % to 88 %

31°C to 41°C

unit not operating

MIL-STD-810E

Method 507.3

Humidity steady

Damp heat

Temperature

Duration

Status of unit

93 % relative humidity

40°C

56 days

unit not operating

MIL-STD-202G

Method 103B

Salt atmosphere

Temperature

Concentration NaCl

Duration

Status of unit

35°C

5 %

48 Hrs

unit not operating

MIL-STD-810E

Method 509.3

Temperature

cycling

Number of cycles

Temperature change

Transfert time

Steady state time

Status of unit

200

-40°C / +85°C

40 min.

20 min.

unit operating

MIL-STD-202A

Method 102A

Temperature

shock

Number of shocks

Temperature change

Transfert time

Steady state time

Status of unit

100

-55°C / +105°C

10 sec.

20 min.

unit not operating

MIL-STD-202G

Method 107G

Mechanical Qualifications

Vibration

(Sinusoidal)

Number of cycles

Frequency / amplitude

Frequency / acceleration

Duration

Status of unit

10 cycles in each axis

10 to 60 Hz / 0.7 mm

60 to 2 000 Hz / 10 g

2h 30 min. per axis

unit not operating

MIL-STD-810D

Method 514.3

Shock

(Half sinus)

Number of shocks

Peak acceleration

Duration

Shock form

Status of unit

3 shocks in each axis

100 g

6 ms

1/2 sinusoidal

unit not operating

MIL-STD-810D

Method 516.3

Bump

(Half sinus)

Number of bumps

Peak acceleration

Duration

Status of unit

2 000 bumps in each axis

40 g

6 ms

unit not operating

MIL-STD-810D

Method 516.3

For locations, phone, fax, E-Mail see back cover

EMI Filter FGDS-2A-50V

Gaia Converter FC05-050.07/13 Revision G

Hi-Rel

Grade

8- Dimensions

11- Connections

Dimension are given in mm (inches). Tolerance : +/- 0,2 mm (+/- 0.01 “) unless otherwise indicated.

Weight : 10 grams (0.3 Ozs) max.

Pin dimensions : O 0,73 mm (0.029 ”)

35,50

(1.4")

27,94

(1.10")

10,20

(0.4")

5 min

(0,20")

15,24

(0.60")

20,50

(0.80")

10,70

(0.42")

7,62

(0.30")

42 3

Bottom view

Pin Single

1 + Input (Vi)

2 + Output (Vo)

3 Ground (Gnd)

4 - Output (Go)

5 - Input (Gi)

9- Materials

Case : Plastic case

Pins : Plated with pure matte tin over nickel underplate

10- Product Marking

Upper face : Company logo, location of manufacturing.

Side face : Module reference, option, date code : year and week of manufacturing.

Information given in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed for the consequence of its use nor for any infringement of patents or other rights of third parties which may result from its use.

These products are sold only according to GAIA Converter general conditions of sale, unless otherwise confirmed by writing. Specifications subject to change without notice.

Printed in France by GAIA Converter Gaia Converter FC05-050.07/13 Revision G. Graphisme : Philippe Clicq

Represented by :

For more detailed specifications and applications information, contact :

International Headquarters

GAÏA Converter - France

ZI de la Morandière

33185 LE HAILLAN - FRANCE

Tel. : + (33)-5-57-92-12-80

Fax : + (33)-5-57-92-12-89

North American Headquarters

GAÏA Converter Canada, Inc

4038 Le Corbusier Blvd

LAVAL, QUEBEC - CANADA H7L 5R2

Tel. : (514)-333-3169

Fax : (514)-333-4519