MGDSI-04-H-E/Y - GAIA Converter - Datasheet.Directory

Industrial DC/DC CONVERTER

MGDI-04 Wide Input : 4W POWER

• Low profile : 0,33’’ (8.5mm)

• Wide input range and high transient compliance

• Nominal power of 04 W without derating

• Wide temperature range : -40°C/+95°C

• Soft start

• Permanent short circuit protection

• No optocoupler for high reliability

• RoHS process

Gaia Converter FC97-005.01/10 Revision M

REDEFINING THE SOURCE OF POWER

1-General

Industrial

Grade

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

2-Product Selection

Input Voltage Range

B : 3.3 VDC

C : 5 VDC or +/-5VDC

E : 12 VDC or +/-12VDC

F : 15 VDC or +/-15VDC

CF : 5 VDC and +/-15 VDC

Output

The MGDI-04 wide input series is a full family of

DC/DC power modules designed for use in

distributed power architecture where variable

input voltage and transient are prevalent making

them ideal particularly for transportation,

railways or high-end industrial applications. These

modules use a high frequency fixed swiching

technic at 480 KHz providing excellent reliability,

low noise characteristics, high power density and

low profile package. Standard models are

available with wide input voltage range of 9-36,

16-40 and 36-140 volts, with high transient levels.

The series include single, bi and triple output

voltage choices of 3,3, 5, 12, 15, +/-5, +/-12 or

+/-15 volts.

No external heatsink is required for the MGDI-

04 series to supply 4W output power over the

case temperature range of -40°C up to 95°C.

The MGDI-04 series is designed in conformity

with safety standards EN60950 and UL1950.

All the modules are designed with LC network

filters to minimize reflected input current ripple

and output voltage ripple according to EN55022

and FCC Part 15J standard.

The modules include a soft-start, a permanent

short circuit protection and an output overvoltage

protection to ensure efficient module protections.

The soft-start allows current limitation and

eliminates inrush current during start-up. The

short circuit protection completely protects the

modules against short-circuits of any duration

by a shut-down and restores to normal when

the overload is removed.

The design has been carried out with surface

mount components and is manufactured in a

fully automated process to guarantee high

quality. Each module is tested with a GAIA

Converter automated test equipment.

Permanent

H : 9-36 VDC

J : 16-40 VDC*

Q : 36-140 VDC**

Transient

40 VDC/100 ms

45 VDC/100 ms

175 VDC/100 ms

* for 45 Vdc consult factory

** for 154 Vdc consult factory

3:1 & 4:1 Wide Input

Single, Bi & Triple Outputs

Metallic Case - 1.500 VDC Isolation

Plastic Case - 3.000 VDC Isolation

Options :

/Y : option for 3.000 VDC isolation

/M : option for On/Off function

Single output model : MGDSI - 04 - input output option

Bi output model : MGDBI - 04 - input output option

Triple output model : MGDTI - 04 - input output option

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

2- Product Selection (continued)

Current

1.000 mA

800 mA

330 mA

260 mA

+/- 400 mA

+/- 165 mA

+/- 130 mA

1.000 mA

800 mA

330 mA

260 mA

+/- 400 mA

+/- 165 mA

+/- 130 mA

500 & +/-50 mA

1.000 mA

800 mA

330 mA

260 mA

+/- 400 mA

+/- 165 mA

+/- 130 mA

Reference

MGDSI-04-H-B

MGDSI-04-H-C

MGDSI-04-H-E

MGDSI-04-H-F

MGDBI-04-H-C

MGDBI-04-H-E

MGDBI-04-H-F

MGDSI-04-J-B

MGDSI-04-J-C

MGDSI-04-J-E

MGDSI-04-J-F

MGDBI-04-J-C

MGDBI-04-J-E

MGDBI-04-J-F

MGDTI-04-J-CF

MGDSI-04-Q-B

MGDSI-04-Q-C

MGDSI-04-Q-E

MGDSI-04-Q-F

MGDBI-04-Q-C

MGDBI-04-Q-E

MGDBI-04-Q-F

Output

3,3 VDC

5 VDC

12 VDC

15 VDC

+/- 5 VDC

+/- 12 VDC

+/- 15 VDC

3,3 VDC

5 VDC

12 VDC

15 VDC

+/- 5 VDC

+/- 12 VDC

+/- 15 VDC

5 & +/-15 VDC

3,3 VDC

5 VDC

12 VDC

15 VDC

+/- 5 VDC

+/- 12 VDC

+/- 15 VDC

Input range

9-36 VDC

16-40 VDC

36-140 VDC

Options

Converter Selection Chart

MGDS I - 04 - Q - C / Y

Number of Outputs :

S : single output

B : bi ouput

T : triple output

Input voltage range :

H : 9-36 VDC

J : 16-40 VDC*

Q : 36-140 VDC**

Output voltage :

See table page 1

Option :

/Y : 3.000 VDC isolation

/M : On/Off function

* for 45 Vdc consult factory

** for 154 Vdc consult factory

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

3- Electrical Specifications

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

Parameter Conditions Limit or

typical Units Single Output MGDSI-04

04 - H 04 - J 04 - Q

Input

Nominal input voltage Full temperature range Nominal VDC 20 24 72

Permanent input

voltage range (Ui) Full temperature range Min. - Max. VDC 9-36 16-40 36-140

Extended permanent

input voltage range

Full temperature range

(Consult factory) Min. - Max. VDC 9-36 16-45 36-154

Transient input voltage Full load Maximum

Maximum

VDC/S

40/0,1

45/0,1

175/0,1

165/1

Start up input voltage Full load Minimum VDC 8,5 15,5 33

Start up time

Ui nominal

Nominal output

Full load : resistive

Maximum ms 200 200 30

Reflected ripple current Ui nominal, full load at

switching freq. BW = 20MHz Maximum mApp 50 30 30

Input current in short

circuit mode (Average)

Ui nominal

Short-circuit Maximum mA 30 30 20

No load input current Ui nominal

No load Maximum mA 30 30 10

Output

Output voltage

Full temperature range

Ui min. to max.

75% load

Nominal

VDC

3,3

Set Point accuracy Ambient temperature : +25°c

Ui nominal, 75% load Maximum % +/- 2 +/- 2 +/- 2

Output power Full temperature range

Ui min. to max. Maximum W 4 4 4

Output current

3,3V output

5V output

12V output

15V output

Full temperature range

Ui min. to max.

Maximum

1.000

800

330

260

1.000

800

330

260

1.000

800

330

260

Ripple output voltage *

3,3V and 5V output

12V output

15V output

Ui nominal

Full load

BW = 20MHz

Maximum

mVpp

100

150

100

150

100

150

Line regulation Ui min. to max.

Full load Maximum % +/- 0,5 +/- 0,5 +/- 0,5

Load regulation ** Ui nominal

25% to full load Maximum % +/- 2 +/- 2 +/- 2***

Efficiency Ui nominal

Full load Typical % 80 81 83

Maximum admissible

Capacity load

3,3V and 5V output

12V and 15V output

Ui nominal

Full load

Per output

Maximum

µF

1.000

Note * : The ripple output voltage is the periodic AC component imposed on the output voltage, an aperiodic and random component (noise) has also to be considered. This

noise can be reduced by adding an external capacitor (typically 10nF/rated voltage depending on isolation requirement) connected between the pin Gin and the pin Gout

of the converter. This capacitor should be layed-out as close as possible from the converter.

Note ** : For load regulation characteristics from 0% to full load, please contact factory.

Note ***: The MGDSI-04-Q-B module output voltage is ranging from 3.25Vdc at full load to 3.55 Vdc at quarter load..

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

3- Electrical Specifications (continued)

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

Parameter Conditions Limit or

typical Units Bi Output MGDBI-04

04 - H 04 - J 04 - Q

Input

Nominal input voltage Full temperature range Nominal VDC 20 24 72

Permanent input

voltage range (Ui) Full temperature range Min. - Max. VDC 9-36 16-40 36-140

Extended permanent input

voltage range

Full temperature range

(Consult factory) Min. - Max. VDC 9-36 16-45 36-154

Transient input voltage Full load Maximum

Maximum

VDC/S

40/0,1

45/0,1

175/0,1

165/1

Start up input voltage Full load Minimum VDC 8,5 15,5 33

Start up time

Ui nominal

Nominal output

Full load : resistive

Maximum ms 200 200 30

Reflected ripple current Ui nominal, full load at

switching freq. BW = 20MHz Maximum mApp 50 30 30

Input current in short

circuit mode (Average)

Ui nominal

Short-circuit Maximum mA 30 30 20

No load input current Ui nominal

No load Maximum mA 30 30 10

Output

Output voltage

Full temperature range

Ui min. to max.

75% load

Nominal

VDC

+/- 5

+/- 12

+/- 15

+/- 5

+/- 12

+/- 15

+/- 5

+/- 12

+/- 15

Set Point accuracy Ambient temperature : +25°c

Ui nominal, 75% load Maximum % +/- 2 +/- 2 +/- 2

Output power Full temperature range

Ui min. to max. Maximum W +/- 2 +/- 2 +/- 2

Output current

+/- 5V output

+/- 12V output

+/- 15V output

Full temperature range

Ui min. to max.

Maximum

+/- 400

+/- 165

+/- 130

+/- 400

+/- 165

+/- 130

+/- 400

+/- 165

+/- 130

Ripple output voltage *

5V output

12V output

15V output

Ui nominal

Full load

BW = 20MHz

Maximum

mVpp

100

150

100

150

100

150

Line regulation Ui min. to max.

Full load Maximum % +/- 0,5 +/- 0,5 +/- 0,5

Load regulation ** Ui nominal

25% to full load Maximum % +/- 2 +/- 2 +/- 2

Cross load output

regulation

Ui nominal

+ Vout nominal load

- Vout from 25% to full load

Maximum % +/- 0,5 +/- 0,5 +/- 0,5

Efficiency Ui nominal

Full load Typical % 80 81 83

Maximum admissible

Capacity load

5V output

12V and 15V output

Ui nominal

Full load

Per output

Maximum

µF

470

Note * : The ripple output voltage is the periodic AC component imposed on the output voltage, an aperiodic and random component (noise) has also to be considered. This

noise can be reduced by adding an external capacitor (typically 10nF/rated voltage depending on isolation requirement) connected between the pin Gin and the pin Gout

of the converter. This capacitor should be layed-out as close as possible from the converter.

Note ** : For load regulation characteristics from 0% to full load, please contact factory.

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

3- Electrical Specifications (continued)

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

Parameter Conditions Limit or

typical Units Triple Output

MGDTI-04- J

Input

Nominal input voltage Full temperature range Nominal VDC 24

Permanent input

voltage range (Ui) Full temperature range Min. - Max. VDC 16-40

Extended permanent input

voltage range

Full temperature range

(Consult factory) Min. - Max. VDC 16-45

Transient input voltage Full load Maximum

Maximum

VDC/S

45/0,1

Start up input voltage Full load Minimum VDC 15,5

Start up time

Ui nominal

Nominal output

Full load : resistive

Maximum ms 200

Reflected ripple current Ui nominal, full load at switching

freq. BW = 20MHz Maximum mApp 30

Input current in short circuit

mode (Average)

Ui nominal

Short-circuit Maximum mA 30

No load input current Ui nominal

No load Maximum mA 30

Output

Output voltage

Full temperature range

Ui min. to max.

75% load

Nominal VDC 5 & +/- 15

Set Point accuracy Ambient temperature : +25°c

Ui nominal, 75% load Maximum % +/- 2

Output power Full temperature range

Ui min. to max. Maximum W 2 & +/- 1

Output current

5V & +/- 15V output

Full temperature range

Ui min. to max. Maximum mA 500 & +/- 50

Ripple output voltage *

5V output

15V output

Ui nominal

Full load

BW = 20MHz

Maximum

mVpp

150

Line regulation Ui min. to max.

Full load Maximum % +/- 0,5

Load regulation ** Ui nominal

25% to full load Maximum % +/- 2

Cross load output regulation

Ui nominal

+ Vout nominal load

- Vout from 25% to full load

Maximum % +/- 0,5

Efficiency Ui nominal

Full load Typical % 80

Maximum admissible

Capacity load

5V output

15V output

Ui nominal

Full load

Per output

Maximum

µF

220

Note * : The ripple output voltage is the periodic AC component imposed on the output voltage, an aperiodic and random component (noise) has also to be considered. This

noise can be reduced by adding an external capacitor (typically 10nF/rated voltage depending on isolation requirement) connected between the pin Gin and the pin Gout

of the converter. This capacitor should be layed-out as close as possible from the converter.

Note ** : For load regulation characteristics from 0% to full load, please contact factory.

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

4- Switching Frequency

6- Protection Functions

Characteristics Protection Device Recovery Limit or typical Specifications

Output short circuit protection (SCP) Hiccup circuitry with

auto-recovery

Automatic

recovery Permanent See section 12

Output overvoltage protection (OVP) Zener clamp /

Maximum

For 3.3v : 4v

For 5v : 6v

For 12v : 14v

For 15v : 17v

7- Reliability Data

Parameter Conditions Limit or typical Specifications

Switching frequency

Full temperature range

Ui min. to max.

No load to full load

Nominal, fixed

9-36 VDC input : 480 KHz

16-40 VDC input : 480 KHz

36-140 VDC input : 430 KHz

5- Isolation

Characteristics Conditions Temperature Specifications

Mean Time Between Failure (MTBF)

According to MIL-HDBK-217F

Ground fixed (Gf) Case at 40°C

Case at 70°C

1.500.000 Hrs

600.000 Hrs

Ground mobile (Gm) Case at 40°C

Case at 70°C

750.000 Hrs

350.000 Hrs

Mean Time Between Failure (MTBF)

According to IEC-62380-TR Telecom switchers / Consult factory

Parameter Conditions Limit or typical Specifications

Electric strength test voltage (basic version) Input to output Minimum 1.500 VDC / 1 min

Electric strength test voltage (/Y option*) Input to output Minimum

Minimum

3.000 VDC / 1 min

2.000 VAC / 50 Hz / 1 min

Electric strength test voltage between

outputs (for dual and triple outputs) Output to output Minimum No isolation

Isolation resistance 500 VDC Minimum 100 MOhm

Note * : The electric strenght test is performed as factory test in accordance to IEC/EN 60950 and should not be repeated in the field. GAIA CONVERTER will not honour any guarantee claims resulting

from electric strenght field tests.

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

8- Electromagnetic Interference

Electromagnetic interference requirements according to EN55022 class A and class B can be easily achieved as indicated in

the following table :

Electromagnetic interference requirements according to

EN55022 class A can be easily achieved by adding an

external common mode noise capacitance

(CC = 10nF/rated voltage depending on isolation

requirement) and an input capacitance (CI Value explained

in previous table). This common mode noise capacitance

CC should be layed-out as close as possible from the DC/

DC converter.

8-1 Module Compliance with EN55022 class A Standard

8-2 Module Compliance with EN 55022 Class B Standard

Electromagnetic interference requirements according to

EN55022 class B can be easily achieved by adding an

external input filter consisting of 4 capacitances, a common

mode choke, a differential mode inductance

and the common mode noise capacitance (CC = 10nF/rated

voltage depending on isolation requirement).

Please consult EN55022 Class B EMI Filter design note for

further details.

Input capacitance Ci



Common mode noise capacitance C = 10nF

- Input

+ Input

MGDI - Series

Vi Vo

Gi Go

Electromagnetic Interference according to EN55022

Conducted noise

emission

Configuration With common mode capacitor

C c = 10nF and input capacitor C i

With common mode capacitor

C c = 10nF and external filter

Models

9-36V input models Class A, C i =4,7µF/ 50 V tantalum Class B

16-40V input models Class A, C i =4,7µF/ 50 V tantalum Class B

36-140V input models Class A, C i =47µF / 200 V chemical /

Radiated noise

emission

Configuration With common mode capacitor C c = 10 nF

Models

All models Class B

* Note : Value of common mode noise capacitance depends on isolation requirements (typically 10nF/1500V or 10nF/3000V ). In case of dielectric strengh test in AC mode,

adapt the capacitance value in order to be compatible with maximum admissible leakage current.



Common mode noise capacitance C = 10nF

MGDI - Series

Vi Vo

Gi Go

- Input

+ Input

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

9- Surge Susceptibility EN61000-4-5 & EN50155

Surge susceptibility requirements according to EN50155, EN61000-4-5 and electromagnetic interference requirements of

EN55022 class A can easily be achieved using either :

• a limitor module LGDS-50 series : ready-to-use single module solution,

• an input limitor filter : schematics of discret components, to sustain the following surge levels :

9-1 Surge Protection with Off-the-Shelf Solution : LGDS-50 Limitor Module

To sustain surge requirements of EN61000-4-5, and EN50155 together with EN55022 class A, GAÏA Converter proposes a

ready-to-use single product. Depending on bus input range two references of limitor module are existing with references

as follow :

These modules designated LGDS-50 series are designed up to 50W power and will protect MGDI-04 series with 9-36, 16-40 or

36-140 VDC input against surges.

The implantation of LGDS-50 with modules can be undertook as follow :

9-2 Surge Protection with Discrete Components

To sustain surge requirements of EN61000-4-5 and EN50155 together with EN55022 class A, GAÏA Converter propo-

ses the following front protection filter.

Please consult EN50155 Transient/EMI Filter desing note for further details.

* Note : Value of common mode noise capacitance rated voltage depends on isolation requirements.

Please consult LGDS-50 datasheet for further details.



MGDI - Series

Vi Vo

Gi Go

MGDI - Series

Vi Vo

Gi Go

LGDS-50

- Input

+ Input

- Input

+ Input

MGDI - Series

Vi Vo

Gi Go

* Common mode noise capacitance C = 10nF

F1 D1

C1 C2

Characteristics Standards Levels

Spikes

Line to line

EN 61000-4-5 Level 4 with 4.000 V waveform 50 µs, impedance 2 Ohm

EN 50155 Level 1.800 V waveform 50 µs, impedance 100 and 5 Ohm

Level 8.400 V waveform 0.1 µs, impedance 100 Ohm

Spikes

Line to earth

EN 61000-4-5 Level 4 with 4.000 V waveform 50 µs, impedance 12 Ohm

EN 50155 Level 1.800 V waveform 50 µs, impedance 100 and 5 Ohm

Level 8.400 V waveform 0.1 µs, impedance 100 Ohm

Input types DC/DC converter family Limitor module reference

9-36 VDC Input

16-40 VDC Input

36-140 VDC Input

MGDI-04-H series

MGDI-04-J series

MGDI-04-Q series

LGDS-50-J-K

LGDS-50-Q-K

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

10- Thermal Characteristics

Characteristics Conditions Limit or typical Performances

Operating ambient temperature

range at full load Ambient temperature * Minimum

Maximum

- 40°C

+ 71°C

Operating case temperature

range at full load Case temperature Minimum

Maximum

- 40°C

+95°C

Storage temperature range Non functionning Minimum

Maximum

- 40°C

+ 105°C

Thermal resistance Rth case to ambient in free air

natural convection Typical 20°C /W

Note * : The upper temperature range depends on configuration, the user must assure a max. case temperature of + 95°C.

10 10030 807060 9020 40 50

25%

75%

50%

100%

Power (W)

Temperature (˚C)

Full load ambient temperature without derating : 71˚C

Maximum case temperature : 95˚C

Natural convection operation area



Additionnal cooling operation area



Maximum storage temperature : 105˚C

The MGDI-04 series operating case temperature must not exceed 95°C. The maximum ambient temperature admissible for

the DC/DC converter corresponding to the maximum operating case temperature of 95°C depends on the ambient airflow,

the mounting/orientation, the cooling features and the power dissipated.

To calculate a maximum admissible ambient temperature the following method can be used. Knowing the maximum case

temparature Tcase = 95°C of the module, the power used Pout and the efficiency η :

• determine the power dissipated by the module Pdiss that should be evacuated :

Pdiss = Pout(1/ηη

ηη

η - 1)

• determine the maximum ambient temperature :

Ta = 95°C - Rth x Pdiss

where Rth is the thermal resistance from the case to ambient.

The previous thermal calculation shows two areas of operation :

• a normal operation area in a free natural ambient convection (grey area in this following graph),

• an area with cooling features (air flow or heatsink) ensuring a maximum case temperature below the maximum

operating case temperature of 95°C (white area in the following graph).

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

11- 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

1.000 Hrs

95°C case

unit operating

IEC 68-2-2

Humidity steady

Damp heat

Temperature

Duration

Status of unit

93 % relative humidity

40°C

56 days

unit not operating

IEC 68-2-3

Test Ca

Temperature

cycling

Number of cycles

Temperature change

Transfert time

Steady state time

Status of unit

200

-40°C / +71°C

40 min.

20 min.

unit not operating

IEC 68-2-14

Test N

Temperature

shock

Number of shocks

Temperature change

Transfert time

Steady state time

Status of unit

-40°C / +105°C

10 sec.

20 min.

unit not operating

IEC 68-2-14

Test Na

Mechanical Qualifications

Vibration

(Sinusoidal)

Number of cycles

Frequency : amplitude

Frequency : acceleration

Amplitude /acceleration

Duration

Status of unit

10 cycles in each axis

10 to 60 Hz / 0.7 mm

60 to 2000 Hz / 10 g

0.7 mm/10 g

2h 30 min. per axis

unit not operating

IEC 68-2-6

Test Fc

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

IEC 68-2-27

Test Ea

Bump

(Half sinus)

Number of bumps

Peak acceleration

Duration

Status of unit

2000 bumps in each axis

25 g

6 ms

unit not operating

IEC 68-2-29

Test Eb

Electrical Immunity Qualifications

Electrical

discharge

susceptibility

Number of discharges

Air discharge level

Contact discharge level

Air discharge level

Contact discharge level

10 positive & 10 negative discharges

4 kV : sanction A

2 Kk : sanction A

8 Kk : sanction B

4 kV : sanction B

EN55082-2 with :

EN61000-4-2

IEC 801-2

Electrical field

susceptibility

Antenna position

Electromagnetic field

Wave form signal

Frequency range

at 1 m

10 V/m

AM 80%, 1 kHz

26 MHz to 1 GHz

EN55082-2 with :

EN61000-4-3

IEC801-3

Electrical fast

transient

susceptibility

Burst form

Wave form signal

Impedance

Level 1

Level 3

5/50 ns

5 kHz with 15 ms burst duration period 300 ms

50 Ohm

0,5 kV : sanction A

2 kV : sanction B

EN55082-2 with :

EN61000-4-4

IEC801-4

Surge

Susceptibility

Surge form

Impedance

Level 4

1,2/50 µs

2 Ohm

4 kV : with transient protection or LGDS-50

limitor module (see section surge)

EN61000-4-5

EN50155

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

12- Description of Protections

12-1 Output Short Circuit Protection (SCP)

The short circuit protection device protects the module

against short circuit of any duration and restores the mo-

dule to normal operation when the short circuit is removed.

It operates in «hiccup» mode by testing periodically if an

overload is applied (typically every 200ms recovery time).

The overload detection threshold is typically 200% of maxi-

mum current with a detection time lower than 5ms.

12-2 Output Overvoltage Protection (OVP)

The output overvoltage protection device protects external

components against high voltage or possible overvoltages

which can be supplied by the module (i.e in case of internal

failure). It consists of a zener diode clamping the output

voltage; under worst case conditions this zener diode will

short-circuit.

The output voltage protection is not designed to withstand

externally applied output overvoltages to protect the mo-

dule itself.

13- Description of Functions

13-1 Option (/M) : On/Off Function

The optionnal control pin 20 (On/Off) can be used for

applications requiring On/Off operation. By using an open

collector command with a transistor Q referenced to the

common terminal (Gi) :

• A logic pulled low (<0.2V@1mA, referenced to Gi)

on pin 20 disables the converter

• No connection or high impedance on pin 20 enables

the converter.

By releasing the On/Off function, the converter will restart

within the start-up time specifications given in table page 3.

For further details please consult ‘’Logic On/Off’’ applica-

tion note.

time

recovery time

detection time

recovery time

100

Vo (%)

On/Off

Command

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

14- Application Notes

14-1 Connection of Outputs in Series

Any of the bi output converters can be configured to produce

an output of 10V (+/-5 output models), 24V (+/-12V out-

put models), or 30V (+/-15V output models) by connecting

the load across the output (+) and the output (-) with

either output grounded, and leaving the common pin

floating.

14-2 Connection of Modules in Series

The output of single output units can be connected in

series without any precautions to provide higher output

voltage level.

Nevertheless, GAIA Converter recommends to protect each

individual output by a low power shottky diode rated with

the maximum current of the converter to avoid reverse

polarity at any output.

Reverse polarity may occur at start up if the output volta-

ges do not rise at the same time.

14-3 Connection of Modules in Parallel

Several converters with equal output voltage can be

connected in parallel to increase power. Nevertheless some

cares have to be taken in particular as the output voltage

of each converter is slightly different, when paralleling,

the converter with the highest output voltage will source

the most current.

However the GAIA Converter modules are designed with a

“soft’’ output voltage versus current characteristic. This

causes the output voltage of each converter to automatically

adjust downward as its current increases so each converter

very approximately shares the total output current. It is

important that each converter has approximately the same

impedance between their output and the common load.

14-4 Safety Consideration

For safety agency approval of the system in which the power

module is used, the power module must be installed in

compliance with requirements of the UL1950, CSA22.2-950,

EN60950 standards : i.e if the output circuit operator ac-

cessible, it shall be a SELV circuit.

A SELV (Safety Extra Low Voltage) output for a converter is

a secondary circuit that under normal operation or a single

fault condition cannot reach hazardous voltage (i.e Voltage

above 60 VDC) between any two accessible parts or an

accessible part and protective each.

In the event of a single fault condition (insulation or

component failure), the voltage in accessible parts of SELV

circuits shall not exceed 60 VDC for longer than 0.2 sec.

and an absolute limit of 120 VDC.SELV circuits must be

separated from hazardous voltages (e.g primary circuits)

by two levels of protection which may be double or reinforced

insulation or basic insulation combined with an earthed

conductive barrier.

Generally DC/DC Converters are power by an input bus that

comes from a front end which can be an AC/DC powered

supply, a transformer, a charger or a battery. It is the sole

responsability of the user to ensure compliance of the front-

end with the relevant safety requiements.

The following table resumes some possible installation con-

figuration using Gaïa Converter MGDI-04 wide input series.

Bus voltage at the input of

DC/DC converter Safety status of the input bus DC/DC converter

requirements

Resulting safety at the

DC/DC converter output

Voltage : < 60 VDC Basic isolation with ELV circuit

Basic isolation with earthed SELV circuit

Operationnal insulation

Earthed SELV circuit

SELV circuit

Hazardous voltage : > 60VDC Basic isolation with hazardous voltage

Double or reinforced insulation with hazadous voltage

Operationnal insulation

Earthed SELV circuit

+Vo

-VoGI

2 x Vo

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

Industrial

Grade

MGDI-04 Wide Input Series

Gaia Converter FC97-005.01/10 Revision M

15- Dimensions

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

Weight : < 15 grams (0.5 Ozs) max.

18- Connections

* Option /M : Pin 20 existing for On/Off function.

(Except Q 36-140Vdc input series)

Please add /M to module reference.

Pin dimensions : O 0,53 mm (0.02 ”)

27,94

(1.10")

2,54

(0.10")

5 min

(0.20")

15,24

(0.60")

1510

1411

1312

Bi output model Triple output model

Bottom view

1411

1312

Single output model

20 20

Pin Single Bi Triple

1 + Input (Vi) + Input (Vi) + Input (Vi)

2 + Input (Vi) + Input (Vi) + Input (Vi)

10 / Common (Go) /

11 Common (Go) Common (Go) Common (Go)

12 Common (Go) / Common (Go)

13 Output (Vo) Output - (-Vo) Output 2- (-V2)

14 Output (Vo) / Output 1 (V1)

15 / Output + (+Vo) Output 2+(+V2)

20 No pin* No pin* No pin*

23 - Input (Gi) - Input (Gi) - Input (Gi)

24 - Input (Gi) - Input (Gi) - Input (Gi)

16- Materials

Pins : Plated with pure matte tin over nickel underplate.

17- Product Marking

Upper face : Company logo, location of manufacturing.

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

Type of module Basic Version : Metal case /Y option : Plastic case

9-36 V & 16-40 V input module

(single & bi output module)

L : 32 mm (1.25“)

H : 7,5 mm (0.295")

H‘ : 7,0 mm (0.275“)

M : 19,3 mm (0.75“)

L : 33 mm (1.3“)

H : 7,8 mm (0.31“)

H‘ : 7,3 mm (0.29“)

M : 20 mm (0.78“)

36-140 V input module

L : 35,5 mm (1.4“)

H : 10,7 mm (0.42“)

H’ : 10,2 mm (0.4“)

M : 20,5 mm (0.8“)

L : 35,5 mm (1.4“)

H : 10,7 mm (0.42“)

H’ : 10,2 mm (0.4“)

M : 20,5 mm (0.8“)

Triple output module

L : 35 mm (1.4“)

H : 10,5 mm (0.4“)

H’ : 10,1 mm (0.4“)

M : 20 mm (0.8“)

L : 35,5 mm (1.4“)

H : 10,7 mm (0.42“)

H’ : 10,2 mm (0.4“)

M : 20,5 mm (0.8“)

Case material Metallic case black anodized

coating Plastic case black

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 FC97-005.01/10 Revision M 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