MGDS-10-J-C/S_技术文档

Hi-Rel DC/DC CONVERTER

MGDM-10 : 10W POWER

Hi-Rel

Grade

Single, Bi & Triple Outputs

Metallic Case - 1.500 VDC Isolation

• 28Vdc input compliant with MIL-STD-704 D/E

• Low profile : 0,33 “ (8.5mm)

• Nominal power of 10 W without derating

• Wide temperature range : -40°C/+105°C case

• High efficiency up to 83 %

• Soft start

1-General

• Galvanic isolation 1.500 VDC

• Integrated LC EMI filter

The modules include a soft-start, an input

undervoltage lock-out, 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 module

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 and burned in with a GAIA

Converter automated test equipment before and

after encapsulation.The modules are potted with

an excellent thermal conductive compound and

packaged in a metallic case to ensure the module’s

integrity under high temperature conditions.

The MGDM-10 series is a full family of high perfor-

mance DC/DC low profile power modules designed

for aerospace, military and high-end industrial ap-

plications. These modules use a high frequency

fixed switching technic at 480 KHz providing ex-

cellent reliability, low noise characteristics, high

power density and a low profile package. Standard

models are available with nominal input voltages

as 5, 12 or 28 volts in range of 4,5-5,5 9-36 or 16-

40 volts. The series include single bi and triple

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

-12, +/-15 or +/-24 volts. No external heatsink is

required for the MGDM-10 series to supply 10W

output power over the case temperature range of

-40°C up to 105°C.

• Permanent short circuit protection

• Parallel operation master/slave

• No optocoupler for high reliability

4

All the modules are designed with LC network filters

to minimize reflected input current ripple and out-

put voltage ripple.

2-Product Selection

Master converter :

Single output model : MGDS-10-

(/T) and/or (/S)

Bi output model

: MGDB-10-

Triple output model : MGDT-10-

Slave converter :

Single output model : MGDE-10-

(/T) and/or (/S)

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

(/S) : option for screening and serialization

Input Voltage Range

Output

Permanent

Transient

B : 3.3 VDC

C : 5 VDC or +/-5VDC

E : 12 VDC or +/-12VDC

F : 15 VDC or +/-15VDC

CE : 5 VDC and +/-12 VDC

CF : 5 VDC and +/-15 VDC

I : +/-24 VDC

C

:

4,5-5,5 VDC

n/a

H : 9-36 VDC

J : 16-40 VDC

40 VDC/100 ms*

50 VDC/100 ms*

* Consult factory for details

REDEFINING THE SOURCE OF POWER

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

Gaia Converter FC97-010.08/06 Revision P

©

Hi-Rel

Grade

MGDM-10 Series

2- Product Selection (continued)

Input range

Output

Current

Reference

Options

4,5-5,5 VDC

3,3 VDC

5 VDC

12 VDC

2 A

0,800 A

0,650 A

+/- 1 A

MGDS-10-C-B

MGDS-10-C-C

MGDS-10-C-E

MGDS-10-C-F

MGDB-10-C-C

MGDB-10-C-E

MGDB-10-C-F

/T , /S

15 VDC

+/- 5 VDC

+/- 12 VDC

+/- 15 VDC

+/- 0,400 A

+/- 0,330 A

9-36 VDC

3,3 VDC

5 VDC

12 VDC

2 A

0,800 A

0,650 A

+/- 1 A

MGDS-10-H-B

MGDS-10-H-C

MGDS-10-H-E

MGDS-10-H-F

MGDB-10-H-C

MGDB-10-H-E

MGDB-10-H-F

MGDT-10-H-CE

MGDT-10-H-CF

/T , /S

15 VDC

+/- 5 VDC

+/- 12 VDC

+/- 15 VDC

5 & +/- 12 VDC

5 & +/- 15 VDC

+/- 0,400 A

+/- 0,330 A

1 A & +/-0,20 A

1 A & +/- 0,15 A

16-40 VDC

3,3 VDC

5 VDC

12 VDC

2 A

0,800 A

0,650 A

+/- 1 A

MGDS-10-J-B

MGDS-10-J-C

MGDS-10-J-E

MGDS-10-J-F

MGDB-10-J-C

MGDB-10-J-E

MGDB-10-J-F

MGDB-10-J-I

MGDT-10-J-CE

MGDT-10-J-CF

/T , /S

15 VDC

+/- 5 VDC

+/- 12 VDC

+/- 15 VDC

+/- 24 VDC

5 & +/- 12 VDC

5 & +/- 15 VDC

+/- 0,400 A

+/- 0,330 A

+/- 0,200 A

1 A & +/-0,20 A

1 A & +/- 0,15 A

4

Converter Selection Chart

M G D S - 10 - H - C / T

Number of Outputs :

S : single output

B : bi ouput

T : triple output

Input voltage range :

C : 4,5-5,5 VDC

H : 9-36 VDC

J : 16-40 VDC

Output voltage :

See table page 1

Option :

/T : -55°C start up operation

/S

:

screening and

(consult

serialization

application note «screening

grades»)

2

Gaia Converter FC97-010.08/08 Revision P

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Hi-Rel

Grade

MGDM-10 Series

3- Electrical Specifications

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

Single Output MGDS-10

Limit or

typical

Parameter

Conditions

Units

10-C

10 - H

10 - J

Input

Nominal input voltage

Full temperature range

Nominal

VDC

5

20

28

Permanent input

voltage range (Ui)

Min. - Max.

4,5-5,5

9-36

16-40

Extended permanent input Full temperature range

Min. - Max.

Maximum

VDC

/

16-45

voltage range

(Consult factory)

Transient input voltage

Full load (Consult factory)

VDC/S

40/0,1

50/0,1

Undervoltage lock-out

(UVLO)

Minimum

Maximum

VDC

4

4,3

7

8,5

12

15

turn-on/turn-off threshold

Ui nominal

Start up time

Nominal output

Full load : resistive

Maximum

ms

30

Ui nominal, full load at

switching freq. BW = 20MHz

Reflected ripple current

Maximum

mApp

mA

50

30

Input current in short

circuit mode (Average)

Ui nominal

Short-circuit

Ui nominal

No load

No load input current

Output

mA

Nominal

VDC

3,3

5

12

15

3,3

5

12

15

3,3

5

12

15

Full temperature range

Ui min. to max.

75% load

Output voltage *

4

Ambient temperature : +25°c

Ui nominal, 75% load

Set Point accuracy

Output power

Maximum

%

W

+/- 2

10

+/- 2

10

+/- 2

10

Full temperature range

Ui min. to max.

Output current**

3,3V output

5V output

12V output

15V outputt

Maximum

A

2

0,80

0,65

2

0,80

0,65

2

0,80

0,65

Full temperature range

Ui min. to max.

Ripple output voltage***

3,3V and 5V output

12V output

Ui nominal

Full load

BW = 20MHz

Maximum

mVpp

40

50

60

40

50

60

40

50

60

15V output

Ui min. to max.

Full load

Line regulation

Load regulation ****

Efficiency

Maximum

Typical

%

+/- 1

+/- 2,5

+/- 1

Ui nominal

25% to full load

+/- 2,5

Ui nominal

Full load

See on page 6

Maximum admissible

Capacity load

3,3V and 5V output

12V and 15V output

Ui nominal

Full load

Per output

Maximum

µF

1.000

330

1.000

330

1.000

330

Note * : For proper operation the MGDM-10 module requires to install a 22µF chemical or tantalum capacitance accross output terminals.

Note ** : For 9-36V input range, the current is derated at 80% at 9V and increases linearly to full current at 12V.

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 see page 6.

3

Gaia Converter FC97-010.08/08 Revision P

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

Hi-Rel

Grade

MGDM-10 Series

3- Electrical Characteristics (continued)

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

Bi Output MGDB-10

Limit or

typical

Parameter

Conditions

Units

10-C

10 - H

10 - J

Input

Nominal input voltage

Full temperature range

Nominal

VDC

5

20

28

Permanent input

voltage range (Ui)

Min. - Max.

4,5-5,5

9-36

16-40

Extended permanent input Full temperature range

Min. - Max.

Maximum

VDC

/

16-45

voltage range

(Consult factory)

Transient input voltage

Full load (Consult factory)

VDC/S

40/0,1

50/0,1

Undervoltage lock-out

(UVLO)

Minimum

Maximum

VDC

4

4,3

7

8,5

12

15

Turn-on/turn-off threshold

Ui nominal

Start up time

Nominal output

Full load : resistive

Maximum

ms

30

Ui nominal, full load at

switching freq. BW = 20MHz

Reflected ripple current

Maximum

mApp

mA

50

30

Input current in short

circuit mode (Average)

Ui nominal

Short-circuit

Ui nominal

No load

No load input current

Output

mA

Nominal

VDC

+/- 5

+/- 12

+/- 15

/

+/- 5

+/- 12

+/- 15

/

+/- 5

+/- 12

+/- 15

+/- 24

Full temperature range

Ui min. to max.

75% load

Output voltage *

4

Ambient temperature : +25°c

Ui nominal, 75% load

Set Point accuracy

Output power

Maximum

%

W

+/- 2

+/- 5

+/- 2

+/- 5

+/- 2

+/- 5

Full temperature range

Ui min. to max.

Output current**

5V output

12V output

15V output

24V output

Maximum

A

+/- 1

+/- 0,40

+/- 0,33

/

+/- 1

+/-0, 40

+/- 0,33

/

+/- 1

Full temperature range

Ui min. to max.

+/-0, 40

+/- 0,33

+/-0,20

Ripple output voltage***

5V output

12V output

Ui nominal

Full load

BW = 20MHz

Maximum

mVpp

40

50

60

40

50

60

40

50

60

15V and 24 output

Ui min. to max.

Full load

Line regulation

Maximum

%

+/- 1

Ui nominal

25% to full load

Load regulation ****

+/- 2,5

Ui nominal

+ Vout nominal load

- Vout from 25% to full load

Cross load output

regulation

Maximum

Typical

%

+/- 0,5

Ui nominal

Full load

Efficiency

See on page 6

Maximum admissible

Capacity load

5V output

Ui nominal

Full load

Per output

Maximum

µF

470

100

470

100

470

100

12V, 15V and 24V output

Note * : For proper operation the MGDM-10 module requires to install a 22µF chemical or tantalum capacitance accross output terminals.

Note ** : For 9-36V input range, the current is derated at 80% at 9V and increases linearly to full current at 12V.

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 see page 6.

4

Gaia Converter FC97-010.08/08 Revision P

©

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

Hi-Rel

Grade

MGDM-10 Series

3- Electrical Characteristics (continued)

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

Tri Output MGDT-10

Limit or

typical

Parameter

Conditions

Units

10 - H

10 - J

Input

Nominal input voltage

Full temperature range

Nominal

VDC

20

28

Permanent input

voltage range (Ui)

Min. - Max.

9-36

16-40

Extended permanent input Full temperature range

Min. - Max.

Maximum

VDC

/

16-45

voltage range

(Consult factory)

Transient input voltage

Full load

VDC/S

40/0,1

50/0,1

Undervoltage lock-out

(UVLO)

Minimum

Maximum

VDC

7

8,5

12

15

Turn-on/turn-off threshold

Ui nominal

Start up time

Nominal output

Full load : resistive

Maximum

ms

30

Ui nominal, full load at

switching freq. BW = 20MHz

Reflected ripple current

Maximum

mApp

mA

50

30

Input current in short

circuit mode (Average)

Ui nominal

Short-circuit

Ui nominal

No load

No load input current

Output

mA

Full temperature range

Ui min. to max.

75% load

Nominal

VDC

5 & +/- 12

5 & +/- 15

5 & +/- 12

5 & +/- 15

Output voltage *

4

Ambient temperature : +25°c

Ui nominal, 75% load

Set Point accuracy

Output power

Maximum

%

W

+/- 2

Full temperature range

Ui min. to max.

5 & +/- 2,5

Output current **

5 & +/- 12V output

5 & +/- 15V output

Full temperature range

Ui min. to max.

Maximum

A

1 & +/- 0,20

1 & +/- 0,15

1 & +/- 0,20

1 & +/- 0,15

Ripple output voltage ***

5V output

12V output

Ui nominal

Full load

BW = 20MHz

Maximum

mVpp

40

50

60

40

50

60

15V output

Ui min. to max.

Full load

Line regulation

Maximum

%

+/- 1

Ui nominal

25% to full load

Load regulation ****

+/- 2,5

Ui nominal

+ Vout nominal load

- Vout from 25% to full load

Cross load output

regulation

Maximum

Typical

%

+/- 0,5

82

+/- 0,5

82

Ui nominal

Full load

Efficiency

Maximum admissible

Capacity load

5V output

Ui nominal

Full load

Per output

Maximum

µF

470

100

470

100

12V and 15V output

Note * : For proper operation the MGDM-10 module requires to install a 22µF chemical or tantalum capacitance accross output terminals.

Note ** : For 9-36V input range, the current is derated at 80% at 9V and increases linearly to full current at 12V.

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 see page 6.

5

Gaia Converter FC97-010.08/08 Revision P

©

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

Hi-Rel

Grade

MGDM-10 Series

3- Electrical Characteristics (continued)

Figure 1 : Typical efficiency versus load

at nominal input

Figure 3 : Typical efficiency versus load

at nominal input

Figure 2 : Typical efficiency versus load

76

74

72

70

68

66

64

83

80

77

74

71

68

65

83

82

81

80

79

78

input 5V

1.65

Output Power (W)

3.3

5

6.6

2.5

5

7.5

10

2.5

5

7.5

10

(MGDS-10-C-B module)

Output Power (W)

(MGDS-10-C-C module)

Output Power (W)

(MGDB-10-C-E module)

Figure 4 : Typical efficiency versus load

at nominal input

Figure 5 : Typical efficiency versus load

at nominal input

Figure 6 : Typical efficiency versus load

at nominal input

83

81

79

77

75

73

71

86

84

82

80

78

76

74

85

83

81

79

77

75

73

input 9V

input 22,5V

input 36V

input 22,5V

input 36V

2.5

5

7.5

10

2.5

5

7.5

10

2.5

5

7.5

10

4

Output Power (W)

(MGDS-10-H-C module)

Output Power (W)

(MGDS-10-H-E module)

Output Power (W)

(MGDS-10-H-F module)

Figure 7 : Typical efficiency versus load

at various input

Figure 8 : Typical efficiency versus load

at various input

Figure 9 : Typical efficiency versus load

at various input

83

80

77

74

71

68

65

86

83

80

77

74

71

86

83

80

77

74

71

68

input 40V

input 28V

input 40V

input 28V

input 16V

input 28V

input 16V

2.5

5

7.5

10

2.5

5

7.5

10

2.5

5

7.5

10

Output Power (W)

(MGDS-10-J-C module)

Output Power (W)

(MGDS-10-J-E module)

Output Power (W)

(MGDS-10-J-F module)

Figure 10 : Typical load regulation

characteristics at nominal input

Figure 11 : Typical load regulation

characteristics at nominal input

Figure 12 : Typical load regulation

characteristics at nominal input

5,8

5,7

5,6

5,5

5,4

5,3

13,20

13,00

12,80

12,60

12,40

12,20

12,00

11,80

16,20

16,00

15,80

15,60

15,40

15,20

15,00

14,80

5,2

5,1

5

4,9

,00 ,25 ,50 ,75 1,00 1,25 1,50 1,75 2,00

0

100 200 300 400 500 600 700 800 900

0

100

200

300

400

500

600

700

Output Current (A)

(MGDS-10-J-C module)

Output Current (mA)

(MGDS-10-J-E module)

Output Current (mA)

(MGDS-10-J-F module)

6

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MGDM-10 Series

4- Switching Frequency

Parameter

Conditions

Limit or typical

Specifications

Full temperature range

Ui min. to max.

Switching frequency

Nominal, fixed

480 KHz

No load to full load

5- Isolation

Parameter

Conditions

Limit or typical

Specifications

Electric strength test voltage

Input to output

Minimum

1.500 VDC / 1 min

No isolation

Electric strength test voltage between

outputs (for dual and triple outputs)

Output to output

500 VDC

Minimum

Isolation resistance

100 MOhm

6- Protection Functions

Characteristics

Protection Device

Recovery

Limit or typical

Specifications

4

Turn-on, turn-off circuit

with no hysteresis

Automatic

recovery

Input undervoltage lock-out (UVLO)

Threshold

Permanent

See section 3

Hiccup circuitry with

auto-recovery

Automatic

recovery

Output short circuit protection (SCP)

Output overvoltage protection (OVP)

See section 11

Maximum

For 3.3v : 4v

For 5v : 6v

For 12v : 14v

For 15v : 17v

Zener clamp

/

7- Reliability Data

Characteristics

Conditions

Temperature

Specifications

Case at 40°C

Case at 85°C

965.000 Hrs

385.000 Hrs

Ground fixed (Gf)

Mean Time Between Failure (MTBF)

According to MIL-HDBK-217F

Airborne, Inhabited,

Cargo (AIC)

Case at 40°C

Case at 85°C

500.000 Hrs

180.000 Hrs

Mean Time Between Failure (MTBF)

According to IEC-62380-TR

Avionics Military Cargo

/

Consult factory

7

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8- Electromagnetic Interference

Electromagnetic Interference requirements according to MIL-STD-461C/D/E standards can be easily achieved as indicated in

the following section. The following table resumes the different sections covered by these standards.

MIL-STD-461C

Standard

MIL-STD-461D/E

Standard

Compliance with GAIA Converter

Module & common mode capacitance

Standard Requirements

Conducted emission (CE) :

Low frequency

High frequency

CE 01

CE 03

CE 101

CE 102

compliant module stand-alone

compliant with additionnal filter

Conducted susceptibility (CS) :

Low frequency

High frequency

CS 01

CS 02

CS 101

CS114

compliant with additionnal filter

Radiated emission (RE) :

Magnetic field

Electrical field

RE 01

RE 02

RE 101

RE 102

compliant module stand-alone

Radiated susceptibility (RS) :

Magnetic field

Electrical field

RS 01

RS 03

RS 101

RS 103

compliant module stand-alone

Applicability

H, J input module

see EMI datasheet

8-1 Module Compliance with MIL-STD-461C/D/E Standards

4

To meet the latest US military standards MIL-STD-461D/E (and also the MIL-STD-461C) requirements and in particular the conducted

noise emission CE102 (and also CE03) requirements, Gaïa Converter can propose a stand-alone ready-to-use EMI filter module. This

EMI filter module has to be used together with a common mode noise capacitance C_c(10nF/rated voltage depending on

isolation requirement) connected between Gin and Gout.

EMI Filter module reference : FGDM-2A-50V.

Please consult EMI filter datasheet for further details.

Vo

VI

EMI input Filter

MGDM-series

GI

Go

GI

Go

Cc

8

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9- Thermal Characteristics

Characteristics

Conditions

Limit or typical

Performances

Operating ambient temperature

range at full load

Minimum

Maximum

- 40°C

+ 85°C

Ambient temperature *

Case temperature

Operating case temperature

range at full load

Minimum

Maximum

- 40°C

+105°C

Minimum

Maximum

- 55°C

+ 125°C

Storage temperature range

Thermal resistance

Non functionning

Rth case to ambient in free air

natural convection

Typical

12°C /W

Note * : The upper temperature range depends on configuration, the user must assure a max. case temperature of + 105°C.

The MGDM-10 series operating case temperature must not exceed 105°C. The maximum ambient temperature admissible for

the DC/DC converter corresponding to the maximum operating case temperature of 105°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 = 105°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/η - 1)

• determine the maximum ambient temperature :

Ta = 105°C - Rth x Pdiss

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

4

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 105°C (white area in the following graph).

Power (W)

100%

Additionnal cooling operation area

75%

50%

Natural convection operation area

25%

10

20 30

40 50 60 70

80 90 100 110

Temperature (˚C)

Full load ambient temperature without derating : 85˚C

Maximum case temperature : 105˚C

Maximum storage temperature : 125˚C

9

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10- Environmental Qualifications

The modules have been subjected to the following environmental qualifications.

Characteristics

Conditions

Severity

Test procedure

Climatic Qualifications

Duration

Temperature / status of unit

Test D : 1.000 Hrs

@ 105°C case, unit operating

@ 125°C ambient, unit not operating

Life at high

temperature

MIL-STD-202G

Method 108A

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.

MIL-STD-810E

Method 500.3

Altitude

unit operating

Number of cycle

10

Cycle duration

Cycle I : 24 Hrs

60 % to 88 %

31°C to 41°C

unit not operating

MIL-STD-810E

Method 507.3

Humidity cyclic

Relative humidity variation

Temperature variation

Status of unit

Damp heat

Temperature

Duration

93 % relative humidity

40°C

56 days

MIL-STD-202G

Method 103B

Humidity steady

Salt atmosphere

Status of unit

unit not operating

Temperature

Concentration NaCl

Duration

35°C

5 %

48 Hrs

MIL-STD-810E

Method 509.3

Status of unit

unit not operating

Number of cycles

Temperature change

Transfert time

Steady state time

Status of unit

200

-40°C / +85°C

40 min.

20 min.

unit operating

Temperature

cycling

MIL-STD-202A

Method 102A

4

Number of shocks

Temperature change

Transfert time

Steady state time

Status of unit

100

-55°C / +105°C

10 sec.

20 min.

MIL-STD-202G

Method 107G

Temperature shock

unit not operating

Mechanical Qualifications

Number of cycles

10 cycles in each axis

10 to 60 Hz / 0.7 mm

60 to 2000 Hz / 10 g

2h 30 min. per axis

unit not operating

Frequency / amplitude

Frequency / acceleration

Duration

Vibration

(Sinusoidal)

MIL-STD-810D

Method 514.3

Status of unit

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

Shock

(Half sinus)

MIL-STD-810D

Method 516.3

Number of bumps

Peak acceleration

Duration

2000 bumps in each axis

40 g

6 ms

Bump

(Half sinus)

MIL-STD-810D

Method 516.3

Status of unit

unit not operating

10

Gaia Converter FC97-010.08/08 Revision P

©

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

Hi-Rel

Grade

MGDM-10 Series

11- Description of Protections

11-1 Input Undervoltage Lock-out (UVLO)

On

The input undervoltage lock-out protection device turns-

on and turns-off the output voltage when the input bus

voltage reaches the undervoltage lock-out threshold. There

is no hysteresis cycle at turn-on and turn-off.

Off

Vin

UVLO

Turn-on/Turn-off

11-2 Output Short Circuit Protection (SCP)

Vo (%)

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.

100

detection time

recovery time

x

time

recovery time

11-3 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.

4

The output voltage protection is not designed to withstand

externally applied output overvoltages to protect the mo-

dule itself.

12- Description of Functions

12-1 Option (/M) : On/Off Function

The optionnal control pin A (On/Off) can be used for appli-

cations requiring On/Off operation. By using an open

collector command with a transistor Q referenced to the

common terminal (Gi) :

On/Off

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

pin A disables the converter

Command

• No connection or high impedance on pin A enables

the converter.

GI

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.

11

Gaia Converter FC97-010.08/08 Revision P

©

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

Hi-Rel

Grade

MGDM-10 Series

13- Application Notes

13-1 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.

VI

GI

+Vo

Go

2 x Vo

-Vo

13-2 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.

VI

Vo

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.

Gate

GI

Go

Vo

2 x Vo

VI

4

Gate

GI

Go

13-3 Connection of Modules in Parallel

The MGDM-10 series feature a current share function. Several

converters with equal output voltage can be connected in

parallel to increase power.

A «master» module will synchronize a «slave» module to

the same clock allowing a current share in between modu-

les through the «gate» pin.

VI

Vo

Master

Gate

Vo

GI

VI

Go

Vo

A master module MGDS-10 can drive up to 2 slave modules

MGDE-10 .

Slave

Gate

GI

Go

12

Gaia Converter FC97-010.08/08 Revision P

©

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

Hi-Rel

Grade

MGDM-10 Series

14- Dimensions

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

Weight : 20 grams (0.7 Ozs) max.

40

26

(1.58")

(1.03")

7,60

Single & Bi & Tri output models

Single & Bi output models

Tri output model

8

(0.30")

(0.32")

5 min

10,16

7,62

(0.3")

10,16

(0.40")

7,62

26,20

(0.20")

(0.40")

(0.3")

(1.03")

2 (0.078")

35,56

20,32

10,16

(0.40")

(1.40")

(0.80")

Pin dimensions : O 0,73 mm (0.03 ”)

Metallic case black anodized coating solder plated pin

15- Product Marking

Upper face : Company logo, location of manufacturing.

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

4

16- Connections

1

Single

Bi

Triple

+ Input (Vi)

No pin

4

5

6

4

7

8

6

+ Input (Vi) + Input (Vi)

2

Gate

No pin

3

- Input (Gi) - Input (Gi)

- Input (Gi)

4

Output (Vo) Output + (+Vo) Output 1 (V1)

No pin Common (Go)

5

/

6 Common (Go) Output - (-Vo) Common (Go)

7

8

A

/

Output 2+ (+V2)

Output 2- (-V2)

No pin *

A

2

A

2

No pin *

1

3

1

3

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

Please add /M to module reference.

Single & Bi output models

Bottom view

Tri output models

13

Gaia Converter FC97-010.08/08 Revision P

©

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

For more detailed specifications and applications information, contact :

International Headquarters North American Headquarters

Marketing and Sales department GAÏA Converter Canada, Inc

GAÏA Converter - France Address : 6611 Thimens

Address : B.P. 26 - 33186 LE HAILLAN - FRANCE ST-LAURENT, QUEBEC - CANADA H4S 1W2

Tel. : + (33)-5-57-92-12-80 Tel. : (514)-333-3169

Fax : + (33)-5-57-92-12-89 Fax : (514)-333-4519

Represented by :

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.


型号：	MGDS-10-J-C/S
厂家：	ETC
描述：	Hi-Rel DC/DC CONVERTER 10W POWER 高可靠性DC / DC转换器功率10W 转换器
文件：	总14页 (文件大小：560K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MGDS-10-J-C/S [ETC]

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