Industrial LIMITOR MODULE
LGDS-50 : 50W POWER
Industrial
Grade
10-36V & 36-154V Input
85V & 385V Transient Limitor
8.4kV Spike Suppressor
Metallic Case
• 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
1-General
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
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.
5
2-Product Selection
Single output model
: LGDS - 50 -
input
output
Input Voltage Range
Permanent
J : 10-36 VDC
Q : 36-154 VDC
Output
K
REDEFINING THE SOURCE OF POWER
©
Gaia Converter FC97-025.01/14 Revision K
For locations, phone, fax, E-Mail see back cover
LGDS-50 Series
3- Modes of Operation
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).
Industrial
Grade
•
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
40
35
Output voltage (Vdc)
30
Output voltage (Vdc)
25
20
15
10
5
0
0
10
20
30
40
50
60
70
80
90
5
Input voltage (Vdc)
LGDS-50-Q-K Transfer Function
160
140
Output voltage (Vdc)
120
100
80
60
40
20
0
0
50
100
150
200
250
300
350
400
450
Output voltage (Vdc)
Input voltage (Vdc)
©
Gaia Converter FC97-025.01/14 Revision K
2
For locations, phone, fax, E-Mail see back cover
LGDS-50 Series
4- Electrical Specifications
Data are valid at +25°C, unless otherwise specified.
Industrial
Grade
Parameter
Input
Compatible with nominal
battery voltage
Conditions
Limit or
typical
Units
LGDS-50-J-K
LGDS-50-Q-K
Full temperature range
Nominal
VDC
24
72 / 96 / 110
Limitor start up voltage
Permanent input voltage
range
Full temperature range
Full temperature range
Maximum
Min. - Max.
VDC
VDC
10
10-36
10
36-154
Transient input voltage
Full temperature range
Full load meet tandards
EN50155, RIA12
Transient 1 sec.
Maximum
Transient 20 ms
Maximum
VDC/s
VDC/ms
40/1
85/20
165/1
385/20
Full temperature range
Full load meet standard
Spike input voltage limit
(Direct spike and indirect
coupled spike)
EN50155
RIA12
Level A
Level B
Level
Level
Level
Level
Level
C
D and H
E and J
F and K
G and L*
VDC
VDC
VDC
VDC
VDC
VDC
VDC
1 800
8 400
1
3
4
8
960
800
600
800
400
(5/50µs, 5 Ohm or 100 Ohm)
(0,05/0,1µs, 100 Ohm)
(10/100µs, 5 Ohm)
(5/50µs, 5 Ohm)
(0,5/5µs, 100 Ohm)
(0,1/1µs, 100 Ohm)
(0,05/0,1µs, 100 Ohm)
5
Current in inhibit mode
Output
Nominal output voltage in
normal operation
No load to full load
Maximum
mA
10
10
In permanent input
voltage mode
Maximum
Minimum
VDC
VDC
Ui - 0,5
Ui - 2
Ui - 0,5
Ui - 2
Output voltage in
limitation operation
In transient input
voltage mode
At indicated nominal
input
Full load
Full temperature range
Maximum
VDC
38
152
Efficiency
Typical
%
95% at 24V input
96% at 48V input
98% at 110V input
50
Output power range
Maximum
W
See figure section 4
Note* : see section 9-4
©
Gaia Converter FC97-025.01/14 Revision K
3
For locations, phone, fax, E-Mail see back cover
LGDS-50 Series
4- Electrical Characteristics (continued)
Figure 1 : LGDS-50-J-K 36V/1s RIA12 Transient Response
Industrial
Grade
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
5
Figure 7 : LGDS-50-J-K Output Power versus Input Voltage
60
50
Output power (W)
40
Pout max
30
20
10
0
0
10
20
30
40
50
60
70
80
90
Input voltage (Vdc)
©
Gaia Converter FC97-025.01/14 Revision K
4
For locations, phone, fax, E-Mail see back cover
LGDS-50 Series
5- Functional Characteristics
Characteristics
Isolation voltage
Input reverse polarity protection
Conditions
Between any pin
Reverse polarity
Limit or typical
Typical
Maximum
Performances
No isolation
Industrial
Grade
Maximum permanent
input voltage
6- Thermal Characteristics
Characteristics
Operating ambient temperature range
Operating case temperature range
Storage temperature range
Conditions
Ambient temperature *
Case temperature
Non functionning
Limit or typical
Minimum
Maximum
Minimum
Maximum
Minimum
Maximum
Performances
- 40°C
+ 71°C
- 40°C
+ 95°C
- 40°C
+ 105°C
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
Mean Time Between Failure (MTBF)
According to MIL-HDBK-217F
Conditions
Ground fixed (Gf)
Temperature
Case at 40°C
Case at 70°C
Performances
2 500 000 Hrs
1 100 000 Hrs
8- Environmental and Electromagnetic Interference Qualifications
Characteristics
Humidity
Vibration
(Sinusoidal)
Shock
(Half sinus)
Bump
(Half sinus)
Conducted noise
emission
Radiated noise
emission
Electrical
discharge
susceptibility
Electrical field
susceptibility
Electrical fast
transient
susceptibility
Surge
Susceptibility
Conditions
Damp heat
Temperature
Number of cycle
Frequency
Amplitude /acceleration
Number of shocks
Peak acceleration
Duration
Number of bumps
Duration
Peak acceleration
Frequency range
150 KHz to 30 MHz
Frequency range
30 MHz to 1.000 MHz
Air discharge level +/-4 KV
Contact discharge level +/- 2KV
Air discharge level 8 KV
Contact discharge level 4 KV
Antenna at 1 m
Wave form : AM modulated 80 %, 1KHz
Test : 26 KHz to 1 GHz
Level 1 : 0.5 KV
Level 3 : 2 KV
Level 4
Severity
93 % H.R 56 Days
40°C
10 cycles in each axis
10 to 60 Hz/ 60 to 2000 Hz
0.7 mm/10 g
3 shocks in each axis
100 g
6 ms
2 000 Bumps in each axis
6 ms
25 g
Class A compliance together with GAIA
Converter DC/DC modules stand alone
Class A compliance together with GAIA
Converter DC/DC modules stand alone
sanction A
sanction A
sanction B
sanction B
Value 10V/m
sanction A
sanction B
See section 3
Test procedure
IEC 68-2-3
IEC 68-2-6
5
IEC 68-2-27
IEC 68-2-29
EN55022
EN55022
EN55082-2 with :
EN61000-4-2
IEC 801-2
EN55082-2 with :
EN61000-4-3
IEC801-3
EN55082-2 with :
EN61000-4-4
IEC801-4
EN61000-4-5
EN50155, RIA12
©
Gaia Converter FC97-025.01/14 Revision K
5
For locations, phone, fax, E-Mail see back cover
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