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PDF MGDM-35 Data sheet ( Hoja de datos )
| Número de pieza | MGDM-35 | |
| Descripción | Metallic Case - 1.500 VDC Isolation | |
| Fabricantes | Gaia Converter | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MGDM-35 (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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Hi-Rel DC/DC CONVERTER
MGDM-35 : 35W POWER Hi-ReHl i-Rel
GradeGrade
4:1 Wide Input
Single, Bi & Triple Outputs
Metallic Case - 1.500 VDC Isolation
• 28Vdc input compliant with MIL-STD-740A/D/E/F
• Nominal power up to 35 W
• Wide temperature range : -40°C/+105°C case
• High efficiency (typ. 84%)
• Sowft wstawrt.DataSheet4U.com
• Galvanic isolation 1.500 VDC
• Integrated LC input filter
• Permanent short circuit protection
• External synchronisation
• External trim and sense adjustment : +/-5%
• No optocoupler for high reliability
• RoHS or Leaded process option
1-General
The MGDM-35 wide input series is a full family of
DC/DC power modules designed for aerospace,
military and high-end industrial applications.
These modules use a high frequency fixed swiching
technic at 250KHz providing excellent reliability,
low noise characteristics and high power density.
Standard models are available with wide input
voltage range of 9-36, and 16-75. The serie
includes single, bi and triple output voltage choices
of 3.3, 5, 12, 15 volts.
No external heatsink is required for the
MGDM-35 series to supply 35W output power over
the full temperature range.
All the modules are designed with LC network
filters to minimize reflected input current ripple
and output voltage ripple .
The modules include a soft-start, an input
undervoltage lock-out, a permanent short cir-
cuit protection and an output overvoltage pro-
tection 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.
4
REDEFINING THE SOURCE OF POWER
© Gaia Converter FC045047.01/10 Revision C
2-Product Selection
Single output model : MGDS - 35 - input
Bi output model
: MGDB - 35 - input
Triple output model : MGDT - 35 - input
output
output
output
/ option
/ option
/ option
suffix
suffix
suffix
Input Voltage Range
Permanent
Transient
H : 9-36 VDC
O : 16-75 VDC
40 VDC/100 ms
80 VDC/100 ms
Options :
/T : option for -55°C start up operating temperature
/S : option for screening and serialization
Output
B : 3.3 VDC
C : 5 VDC or +/-5VDC
E : 12 VDC or +/-12VDC
F : 15 VDC or +/-15VDC
BE : 3.3 VDC and +/- 12 VDC
BF : 3.3 VDC and +/-15 VDC
CE : 5 VDC and +/- 12 VDC
CF : 5 VDC and +/-15 VDC
Suffix :
nothing : RoHS process
-L : leaded process (available in N. America)
For locations, phone, fax, E-Mail see back cover
1 page  
MGDM-35 Series
Hi-Rel
Grade
3- Electrical Specifications (continued)
Data are valid at +25°C, unless otherwise specified.
Parameter
Conditions
Limit or
typical
Units
Tri Output MGDT-35
35 - H
35 - O
Input
Nominal input voltage Full temperature range
Nominal VDC
20
28
Permanent input
voltage range (Ui)
Transient input voltage
Undervoltage lock-out
(UVLO)
Full temperature range
Full load
Turn-on voltage
Turn-off voltage
Min. - Max. VDC
Maximum
Nominal
Nominal
VDC/-
S
VDC
VDC
9-36
40/0,1
8,8
8
16-75
80/0,1
15,8
14
Start up time
Ui nominal
Nominal output
Full load : resistive
Maximum ms
30
30
www.DataSheetR4eUf.lcecotmed ripple current
Ui nominal, full load at
switching freq. BW = 20MHz
Maximum
mApp
600
600
Input current in short Ui nominal
circuit mode (Average) Short-circuit
Typical mA
TBD
TBD
No load input power
Ui min. to max.
No load or Stanby
Maximum mW
300
500
Output
Output voltage (1)
Full temperature range
Ui min. to max.
75% load
Nominal
Nominal
Nominal
Nominal
VDC
VDC
VDC
VDC
3,3 & +/-11,8
3,3 & +/-15,2
5,1 & +/- 11,8
5,1 & +/- 14,7
3,3 & +/-11,7
3,3 & +/-14,7
5,1 & +/- 11,7
5,1 & +/- 14,7
Set Point accuracy
Ambient temperature : +25°c
Ui nominal, 75% load
Maximum
%
+/- 2
+/- 2
Output power *
Full temperature range
Ui min. to max.
Maximum W
20 & +/- 14 20 & +/- 14
Output current *
3,3V & +/- 12V output
3,3V & +/- 15V output
5V & +/- 12V output
5V & +/- 15V output
Full temperature range
Ui min. to max.
Maximum
Maximum
Maximum
Maximum
A
A
A
A
4 & +/- 1,1
4 & +/- 0,9
4 & +/- 1,1
4 & +/- 0,9
4 & +/- 1,1
4 & +/- 0,9
4 & +/- 1,1
4 & +/- 0,9
Ripple output voltage
3,3V and 5V output
12V output
15V output
**
Ui nominal
Full load
BW = 20MHz
Maximum mVpp
Maximum mVpp
Maximum mVpp
100
200
200
100
200
200
4 Line regulation
Load regulation ***
Ui min. to max.
75% oad
Ui nominal
25% to full load
Maximum %
Maximum %
+/- 1
+/- 2
+/- 1
+/- 2
Cross load output
regulation
Ui nominal
+ Vout at 75% load
Maximum %
- Vout from 25% to full load
+/- 0,5
+/- 0,5
Efficiency
Ui nominal
Full load
Typical %
84
85
Maximum admissible
Capacity load
3,3V and 5V output
12V and 15V output
Ui nominal
Full load
Per output
Maximum µF
Maximum µF
4.700
470
4.700
470
Note (1) : The primary voltage should be minimum loaded (consult factory) to be able to get the secondary outputs.
Note * : Maximum power per output with total power not exceeding 35W.
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.
© Gaia Converter FC05-047.01/10 Revision C
For locations, phone, fax, E-Mail see back cover
4
5
5 Page 
11- Description of Protections
11-1 Input Undervoltage Lock-out (UVLO)
An input undervoltage protection will inhibit the module
when input voltage drops below the lock-out turn-off
threshold (see section 3 for value) and restores to normal
operation automatically when the input voltage rises the
lock-out turn-on threshold.
The input undervoltage lock-out threshold (UVLO) can be
trimmed by connecting a resistor between UVLO and Gi
pins. This resistance can be calculated as folow :
RUVLO = K x 104
(n - 1)
www.DataSheet4U.com
where n = UVLO trim
UVLOthreshold
Input H
K 0,932
Input O
1,34
Vi
Gi
MGDM-35 Series
Hi-Rel
Grade
On
Off
UVLO UVLO
Turn-off Turn-on
Vin
RULVO
4 Vi
8 On/Off
6 Sync
7 Vref
5 Trim
1 UVLO
2 Gi
Vo 17
Go 15
11-2 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 1s recovery time). The
overload detection threshold is typically 200% of maxi-
mum current with a detection time lower than 5ms.
Vo (%)
100
x
detection time
recovery time
recovery time
4
time
4
11-3 Output Overvoltage Protection (OVP)
Each circuit has an internal overvoltage protection circuit
that monitors the voltage accross the output power
terminals.
It is designed to latch the converter off between 105%
and 110% of output voltage.
Once in OVP protection, the module will restart
automatically when overvoltage is removed.
© Gaia Converter FC05-047.01/10 Revision C
For locations, phone, fax, E-Mail see back cover
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet MGDM-35.PDF ] | |
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