LGDS-50-J-K - GAIA Converter

Industrial LIMITOR MODULE

LGDS-50 : 50W POWER

• Spike suppressor module

- EN50155 level 1.800V

- RIA12 level 8.400V

• Transient suppressor module

- EN50155

- IEC 571

- RIA12

• Input reverse polarity protection

• High efficiency (98%)

• Power range : from 4W to 50W

• Integrated EMI filter EN55022 class A

• Inhibition function

• RoHS process

Gaia Converter FC97-025.01/10 Revision J

REDEFINING THE SOURCE OF POWER

1-General

Industrial

Grade

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

2-Product Selection

Input Voltage Range

Output

The Gaïa Converter limitor LGDS-50 Series

designates an active power adaptor module

designed to protect electronical systems against

fast transient and high spike levels that can occur

from an input bus line with no voltage

stabilization devices.

The LGDS-50 delivers an adapted output

voltage compliant with Gaïa Converter DC/DC

range of modules. This line of module is

optimized to provide high efficiency up to 98%

over the whole power range between 4W and

50W power.

The module includes also an EMI filter to provide

compliance with EN55022 Class A together with

GAIA Converter DC/DC modules.

The module is manufactured in a fully automated

process to guarranty high quality. Each module

is tested with a Gaïa Converter automated test

Permanent

J : 10-36 VDC

Q : 36-154 VDC

10-36V & 36-154V Input

85V & 385V Transient Limitor

8.4kV Spike Suppressor

Metallic Case

equipment.

The LGDS-50 features 2 modes of operations as

follow :

• Normal operation :

Normal operation occurs when input bus line

is in steady state permanent range. The LGDS-

50 is then operating in steady transparency

state providing an output with a typical 1,5V

drop-out voltage.

• Transient and spikes operation

The LGDS-50 can sustain both :

• transient during 1s and 20 ms according

to RIA12 or EN50155 requirements,

• high spike levels up to 1.8kV with 5 Ohms

impedance and 8,4kV with 100 Ohms

impedance to meet international input bus

standards of EN50155, RIA12 or IEC 571.

Single output model : LGDS - 50 - input output

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

Industrial

Grade

LGDS-50 Series

Gaia Converter FC97-025.01/10 Revision J

0 50 100 150 200 250 300 350 400 450

100

120

140

160

Input voltage (Vdc)

Output voltage (Vdc)

0 10 20 30 40 50 60 70 80 90

Input voltage (Vdc)

Output voltage (Vdc)

3-1 LGDS-50 Modes of Operation

The LGDS-50 series features 3 modes of operations

detailed hereafter and illustrated by the 2 figures which

depict the transfer fuctions for both models

LGDS-50-J-K and LGDS-50-Q-K :

• Power fail operation :

An undervoltage lock-out stops operation for input

voltage below the low line operation threshold

(typically 10Vdc).

3- Modes of Operation

• Normal operation :

During normal operation the module is operating in

steady transparency state.

• Transient and spike operation :

The LGDS-50 series can sustain input transient and

spike describe in section 3 by a clamping input

system.

LGDS-50-J-K Transfer Function

LGDS-50-Q-K Transfer Function

Output voltage (Vdc)Output voltage (Vdc)

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

Industrial

Grade

LGDS-50 Series

Gaia Converter FC97-025.01/10 Revision J

4- Electrical Specifications

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

Parameter Conditions Limit or

typical Units LGDS-50-J-K LGDS-50-Q-K

Input

Compatible with nominal

battery voltage Full temperature range Nominal VDC 24 72 / 96 / 110

Limitor start up voltage Full temperature range Maximum VDC 10 10

Permanent input voltage

range Full temperature range Min. - Max. VDC 10-36 36-154

Transient input voltage

Full temperature range

Full load meet tandards

EN50155, RIA12

Transient 1 sec.

Transient 20 ms

Maximum

VDC/s

VDC/ms

36/1

85/20

165/1

385/20

Spike input voltage limit

(Direct spike and indirect

coupled spike)

Full temperature range

Full load meet standard

EN50155 Level A

Level B

VDC

1 800

8 400

(5/50µs, 5 Ohm or 100 Ohm)

(0,05/0,1µs, 100 Ohm)

RIA12 Level C

Level D and H

Level E and J

Level F and K

Level G and L

VDC

960

1 800

3 600

4 800

8 400

(10/100µs, 5 Ohm)

(5/50µs, 5 Ohm)

(0,5/5µs, 100 Ohm)

(0,1/1µs, 100 Ohm)

(0,05/0,1µs, 100Ohm)

Current in inhibit mode No load to full load Maximum mA 10 10

Output

Nominal output voltage in

normal operation

In permanent input

voltage mode

Maximum

Minimum

VDC

Ui - 0,5

Ui - 2

Ui - 0,5

Ui - 2

Output voltage in

limitation operation

In transient input

voltage mode Maximum VDC 38 152

Efficiency

At indicated nominal

input

Full load

Typical % 95% at 24V input 96% at 48V input

98% at 110V input

Output power range Full temperature range Maximum W See figure section 4 50

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

Industrial

Grade

LGDS-50 Series

Gaia Converter FC97-025.01/10 Revision J

0 10 20 30 40 50 60 70 80 90

Pout max

Input voltage (Vdc)

Output power (W)

4- Electrical Characteristics (continued)

Figure 1 : LGDS-50-J-K 36V/1s RIA12 Transient Response Figure 2 : LGDS-50-Q-K 165V/1s RIA12 Transient Response

Figure 3 : LGDS-50-J-K 85V/20ms RIA12 Transient Response Figure 4 : LGDS-50-Q-K 385V/20ms RIA12 Transient Response

Figure 5 : LGDS-50-J-K 1800V Spike Response Figure 6 : LGDS-50-Q-K 1800V Spike Response

Figure 7 : LGDS-50-J-K Output Power versus Input Voltage

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

Industrial

Grade

LGDS-50 Series

Gaia Converter FC97-025.01/10 Revision J

5- Functional Characteristics

8- Environmental and Electromagnetic Interference Qualifications

6- Thermal Characteristics

Characteristics Conditions Limit or typical Performances

Isolation voltage Between any pin Typical No isolation

Input reverse polarity protection Reverse polarity Maximum Maximum permanent

input voltage

Characteristics Conditions Limit or typical Performances

Operating ambient temperature range Ambient temperature * Minimum

Maximum

- 40°C

+ 71°C

Operating case temperature range Case temperature Minimum

Maximum

- 40°C

+ 95°C

Storage temperature range Non functionning Minimum

Maximum

- 40°C

+ 105°C

Characteristics Conditions Severity Test procedure

Humidity Damp heat

Temperature

93 % H.R 56 Days

40°C IEC 68-2-3

Vibration

(Sinusoidal)

Number of cycle

Frequency

Amplitude /acceleration

10 cycles in each axis

10 to 60 Hz/ 60 to 2000 Hz

0.7 mm/10 g

IEC 68-2-6

Shock

(Half sinus)

Number of shocks

Peak acceleration

Duration

3 shocks in each axis

100 g

6 ms

IEC 68-2-27

Bump

(Half sinus)

Number of bumps

Duration

Peak acceleration

2 000 Bumps in each axis

6 ms

25 g

IEC 68-2-29

Conducted noise

emission

Frequency range

150 KHz to 30 MHz

Class A compliance together with GAIA

Converter DC/DC modules stand alone EN55022

Radiated noise

emission

Frequency range

30 MHz to 1.000 MHz

Class A compliance together with GAIA

Converter DC/DC modules stand alone EN55022

Electrical

discharge

susceptibility

Air discharge level +/-4 KV

Contact discharge level +/- 2KV

Air discharge level 8 KV

Contact discharge level 4 KV

sanction A

sanction B

EN55082-2 with :

EN61000-4-2

IEC 801-2

Electrical field

susceptibility

Antenna at 1 m

Wave form : AM modulated 80 %, 1KHz

Test : 26 KHz to 1 GHz

Value 10V/m

EN55082-2 with :

EN61000-4-3

IEC801-3

Electrical fast

transient

susceptibility

Level 1 : 0.5 KV

Level 3 : 2 KV

sanction A

sanction B

EN55082-2 with :

EN61000-4-4

IEC801-4

Surge

Susceptibility Level 4 See section 3 EN61000-4-5

EN50155, RIA12

Note * : The upper temperature range depends on configuration, the user must assure a max. case temperature of + 95°C (See Application Notes : Ambient versus case temperature).

7- Reliability Characteristics

Characteristics Conditions Temperature Performances

Mean Time Between Failure (MTBF)

According to MIL-HDBK-217F Ground fixed (Gf) Case at 40°C

Case at 70°C

2 500 000 Hrs

1 100 000 Hrs

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

Industrial

Grade

LGDS-50 Series

Gaia Converter FC97-025.01/10 Revision J

9- Application Notes

9-1 Reverse Polarity Compatibility

The LGDS-50 integrates a reverse polarity protection connected directly on Vin (pin 1).

9-2 On/Off Function

The control pin 2 (On/Off) can be used for applications requiring On/Off

operations. By using an open collector command with a transistor Q

referrenced to the terminal Gin :

• A Level 1 on command disables the converter,

• A Level 0 an command or no connection / high impedance enables

the converter.

In off mode, the current consumption stays below 10mA.

9-3 Typical Schematic

The LGDS-50 Series are suitable to be used with several

DC/DC GAIA converter modules in a parallel configuration

as follow.

• The LGDS-50-J-K works in conjunction with GAÏA

Converter H input (9-36V) series or J input (16-40V)

series.

• The LGDS-50-Q-K works in conjunction with GAÏA

Converter Q input (36-140V) series.



MGDI - Series

Vi Vo

Gi Go

MGDI - Series

Vi Vo

Gi Go

LGDS-50

- Input

+ Input



On/Off

Command

100K

68K

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

Industrial

Grade

LGDS-50 Series

Gaia Converter FC97-025.01/10 Revision J

10- Dimensions

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

Weight : 28 grams (1 Ozs) max.

13- Connections

Bottom view

31 2

Pin LGDS-50

1 + Input (Vi)

2 On / Off

3 - Input (Gi)

4 Common (Go)

5 Output (Vo)

Pin dimensions : O 0,73 mm (0.03 ”)

40

(1.58")

35,56

(1.40")

12,80 max

(0.50")

10,16

(0.40")

4,50

(0.17")

10,16

(0.40")

26

(1.03")

2,70

(0.10")

11- Materials

Case : Metallic black anodized coating.

Pins : Plated with pure matte tin over nickel underplate.

12- 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 FC97-025.01/10 Revision J. 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