Hi-Rel DC/DC CONVERTER
MGDM-200 : 200W POWER
Hi-Rel
Grade
5:1 Low Input Voltage : 9-45 & 16-80 VDC
Single Output
Metallic case - 1 500 VDC Isolation
• Same surface as 1/2 brick standard form factor
• BaseRail
TM
& SideRail
TM
heat dissipation
• Vertical or horizontal mounting
• Ultra wide input range 9-45 Vdc, 16-80 Vdc
• 28Vdc input compliant with MIL-STD-704A/D/F
• Power up to 200 W
• Wide temperature range : -40/+105°C frame
• High efficiency (typ.90%)
• Soft start
• Galvanic isolation 1 500 VDC
• Integrated LC filter
• Synchronizable
• Load sharing, N+1 redundancy
• No load to full load operation
• Fully protected by independant protection
• Under voltage lock-out
• Overvoltage protection
• Output current limitation
• Over temperature protection
• No optocoupler for high reliability
• RoHS process
The MGDM-200 low input voltage series is a
complete line of high density wide input range
DC/DC power modules designed for aerospace,
military and high-end industrial applications. These
modules use a patented fixed switching topology
at 270 KHz providing ultra wide input range, low
noise characteristics and high power density. Stan-
dard models are available with ultra wide input
voltage range of 9-45, 16-80 volts. The series
include single output voltage choices of 3,3, 5,
12, 15, 24 volts.
The MGDM-200 low input voltage series include
synchronization, load sharing, trim, current trim
limitation and sense functions.
The synchronization function allows to synchronize
one converter to the other or to an external
frequency source. The load sharing allows
parallel operation to increase output power with
a true N+1 without any additionnal external
components.
All modules are designed with LC network filters
to minimize reflected input current ripple and
output voltage ripple.
The modules have independant protection
functions including input undervoltage lock-out,
output overvoltage protection, output current
limitation, and thermal protection. Additionnally
a soft-start function reduces inrush current
during start-up.
The thermal design is innovative and use
baserail
TM
and siderail
TM
concept. The heat is
removed through thick copper planes down to
the external frame on the top and the side
allowing better thermal path.
The design has been carried out with surface
mount components, planar transformer and is
manufactured in a fully automated process to
guarantee high quality. The modules are potted
with a bi-component thermally conductive
compound to ensure optimum power dissipation
under harsh environmental conditions.
PRELIMINARY
1-General
4
2-Product Selection
Single output model
: MGDS - 200 -
input
output
/
option
suffix
Input Voltage Range
Permanent
H : 9-45 VDC
O : 16-80 VDC
B
C
E
F
I
Output
:
:
:
:
:
3.3 VDC
5 VDC
12 VDC
15 VDC
24 VDC
Options :
/2H : option with side pin configuration
/T : option for -55°C start up operating temperature
/S : option for screening and serialization
REDEFINING THE SOURCE OF POWER
Suffix :
nothing : RoHS process
©
Gaia Converter FC10-065.12/13 Revision E
For locations, phone, fax, E-Mail see back cover
MGDM-200 Low Input Series
3- Electrical Specifications
Data are valid at +25°C, unless otherwise specified.
Parameter
Input
Nominal input voltage
Permanent input
voltage range (Ui)
Input absolute surge
withstand
Undervoltage lock-out
(UVLO)
Start up time
Reflected ripple current
No load input power
Input power in inhibit
mode
Output
Conditions
Limit or
typical
Nominal
Min. - Max.
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Units
Hi-Rel
Grade
Single Output MGDS-200
200 - H
24
9 - 45
60/0,5
9
8
30
5
1,5
1
200 - O
28
16 - 80
100/1
16
14
30
2,5
1,5
1
Full temperature range
Full temperature range
Full temperature range
Turn-on voltage
Turn-off voltage
Ui nominal
Nominal output
Full load : resistive
Ui nominal, full load
BW = 20MHz
Ui nominal
No load
Ui nominal
Inhibit
VDC
VDC
VDC/sec.
VDC
VDC
ms
App
W
W
Output voltage *
Ui min. to max.
Nominal
Nominal
Nominal
Nominal
Nominal
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Typical
Typical
Typical
Typical
Maximum
Minimum
Maximum
Typical
VDC
VDC
VDC
VDC
VDC
%
W
A
A
A
A
A
mVpp
mVpp
mVpp
mVpp
%
%
%
%
3,3
5
12
15
24
+/- 2
200
35
35
16,7
13,4
8,4
100
250
450
500
+/- 1
10
110
88
3,3
5
12
15
24
+/- 2
200
35
35
16,7
13,4
8,4
100
250
450
500
+/- 1
10
110
88
4
Set Point accuracy *
Output power **
Output current **
3,3V output
5V output
12V output
15V output
24V output
Ripple output voltage ***
3,3V and 5V output
12V output
15V output
24V output
Output regulation *
(Line + load + thermal)
Output Voltage Trim
Range
Efficiency
Ambient temperature : +25°c
Ui nominal, 75% load
At 105°c baseplate
Ui min. to max.
Full temperature range
Ui min. to max.
Ui nominal
Full load
BW = 20MHz
Ui min. to max.
0% to full load
As function of output voltage
Ui nominal
Full load
Note * : These performances are measured with the sense lines connected. For H input series, output regulation is +1/-5% when Vin is below 10V.
Note ** : It is recommended to mount the converter on a heatsink for this test, see section 10-3 and 10-9 for further details.
Note *** : The output voltage ripple is the periodic AC component superimposed on the output voltage, an aperiodic and random component (noise) has also to be
considered. This noise can be reduced by adding 4 external decoupling capacitors connected between inputs and case and between outputs and case. These capacitance
should be layed-out as close as possible from the converter. Please refer to page 8 for more details.
Note 1 : The MGDS-200-H-F has a no load input current of 1,2W max. and 450 mVpp ripple.
©
Gaia Converter FC10-065.12/13 Revision E
3
For locations, phone, fax, E-Mail see back cover
MGDM-200 Low Input Series
3- Electrical Characteristics (continued)
Typical efficiency MGDS200HC at 25°C
90
Hi-Rel
Grade
Typical efficiency MGDS200HE at 25°C
90
E fficie ncy (% )
E fficie ncy (% )
88
86
84
82
80
78
0
10
20
30
40
50
60
70
88
86
84
82
80
78
0
10
20
30
40
50
60
70
150W
175W
150W
175W
Input voltage Vin (Vdc)
Typical efficiency MGDS200HF at 25°C
91
90
89
88
87
86
85
84
83
82
81
0
10
20
30
40
50
60
70
Input Voltage Vin (Vdc)
Input voltage Vin (Vdc)
Typical efficiency MGDS200HI at 25°C
90
88
86
84
82
80
78
76
74
0
10
20
30
40
50
60
70
E fficie ncy (% )
Efficiency (% )
200W
150W
150W
175W
4
Input voltage Vin (Vdc)
Typical efficiency MGDS200OE at 25°C
92
91
89
88
87
Efficiency (% )
Typical efficiency MGDS200OI at 25°C
E fficiency (%)
90
89
88
87
150W
200W
86
85
84
83
200W
150W
86
10 20 30 40 50 60 70 80 90 100110
82
10
20
30
40
50
60
70
80
90
Input Voltage Vin (Vdc)
Input voltage Vin (Vdc)
©
Gaia Converter FC10-065.12/13 Revision E
4
For locations, phone, fax, E-Mail see back cover
MGDM-200 Low Input Series
4- Switching Frequency
Parameter
Switching frequency
Conditions
Full temperature range
Ui min. to max.
No load to full load
Limit or
typical
Nominal, fixed
Specifications
270 KHz
Hi-Rel
Grade
5- Isolation
Parameter
Electric strength test voltage
Isolation resistance
Conditions
Input to output
Input to case
Output to case
500 VDC
Limit or typical
Minimum
Minimum
Minimum
Minimum
Specifications
1 500 VDC / 1 min
1 500 VDC / 1 min
1 500 VDC / 1 min
100 MOhm
6- Protection Functions
Characteristics
Input undervoltage lock-out
(UVLO)
Output current limitation
(OCP)
Output short circuit protection
(SCP)
Output overvoltage protection
(OVP)
Over temperature protection
(OTP)
Protection Device
Turn-on, turn-off circuit
with hysteresis cycle
Foldback current
limitation
Hiccup circuitry with
auto-recovery
Overvoltage protection
device with latch-up
Thermostat with
hysteresis cycle
Recovery
Automatic
recovery
Automatic
recovery
Automatic
recovery
Automatic
recovery
Automatic
recovery
Limit or typical
Turn-on nominal
Turn-off nominal
Maximum
Permanent
Typical
Maximum
Specifications
See section 4
120% of output
current
See section 11
115% to 130% of
output voltage
120°C internal
4
7- Reliability Data
Characteristics
Conditions
Ground fixed (Gf)
Mean Time Between Failure (MTBF)
According to MIL-HDBK-217F
Airborne, Inhabited,
Cargo (AIC)
Civilian avionics,
calculators
Temperature
Case at 40°C
Case at 85°C
Case at 40°C
Case at 85°C
Ambient at 55°C
100% time on
Specifications
575 000 Hrs
155 000 Hrs
325 000 Hrs
105 000 Hrs
411 000 Hrs
Mean Time Between Failure (MTBF)
According to IEC-62380-TR
©
Gaia Converter FC10-065.12/13 Revision E
5
For locations, phone, fax, E-Mail see back cover
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