MGDK25 25W POWER
BOARD MOUNTED ISOLATED DC/DC CONVERTER
1500 Vdc ISOLATION
Description
The MGDK25 series features a Quality Cost Effective range of 25W board mounted isolated dc/dc
converters. With multiple selection of wide input voltage ranges, the MGDK25 is proposed with a
single, double, symmetrical or triple output channel. The converter embeds an output
overload protection, and comes encapsulated in a low profile fully potted 2’’x2’’X0.5’’ metallic
case.
Fields of Application
General purpose application
Transportation
Telecom
Rnewable Energy
Part-numbering
MGD S K 25 H C
output nb.
Input voltage range Output voltage
S = single
B = double
T = Triple
H = 9-36
O = 18-75
B = 3.3
C=5
E = 12
F = 15
Selection Guide
Part Number
Part Number
Output
Voltage
(Vdc)
Output
Power
(Watt)
Output Current
(Adc)
6
MGDSK25OB
3.3
19.8
6
25
5
MGDSK25OC
5
25
5
12
25
2.1
MGDSK25OE
12
25
2.1
MGDSK25HF
15
25
1.67
MGDSK25OF
15
25
1.67
MGDBK25HE
+/-12
25
+/-1.05
MGDBK25OCB
+5 +3,3
22.5
2.5/ 3
MGDBK25HF
+/-15
25
+/-0.83
MGDBK25OE
+/-12
25
+/-1.05
MGDTK25HCE
+5 +/-12
25
2.5 +/-0.5
MGDBK25OF
+/-15
25
+/-0.83
MGDTK25HCF
+5 +/-15
25
2.5 +/-0.4
MGDTK25OCE
+5 +/-12
25
2.5 +/-0.5
Output
Voltage
(Vdc)
Output
Power
(Watt)
Output Current
(Adc)
MGDSK25HB
3.3
19.8
MGDSK25HC
5
MGDSK25HE
for more information go to https://www.gaia-converter.com
FC19-099. 08/22 Revision D
1/4
WWW.GAIA-CONVERTER.COM
MGDK25 25W POWER
1-ELECTRICAL SPECIFICATIONS
Specification
Data are valid at +25°C, unless otherwise specified
Parameter
Conditions
Limit
Units
H input
O input
Nominal Input Voltage
(Ui nom)
Full temperature range
Nominal
Vdc
20
48
Transient Input Voltage
Full temperature range
Maximum
Vdc/s
40/-
80/0.1
Start-up input voltage
Turn on -turn off
Full temperature range
Min.
Vdc
8.5
15
Start-up time
Full temperature range
Maximum
ms
30
Ui Nominal 75% load
Typical
%
87
Ui nominal
(hic-up mode)
Maximum
mA
40
Ui min. To Ui max
Typical
Vdc
5 +/-11.5
5 +/-14.6
Ui nom @75% load
Maximum
%
+/-2.5
Output regulation (Line)
25% to full load
Maximum
%
+/- 1.5
Output regulation (Load)
Ui min. To Ui max
25% to full load
0% to 25% load
Maximum
Typical
INPUT
Power efficiency
Input current in short
circuit mode (Average)
45
OUTPUT
Specific Output Voltage
MGDT25HCE
MGDT25HCF
MGDT25OCE
Set Point accuracy
5 +/-11.8
+/- 2.5
+20 to +/-2.5
%
Minimum 10% load is recommended, operation with no load during more than
1s may partially damage the converter output.
Output ripple voltage
B output (3V3)
C output (5V)
E output (12V)
F output (15V)
Admissible capacitor
B output (3V3)
C output (5V)
E output (12V)
F output (15V)
Ui min. To Ui max
Ui min. Full load
( per output)
Maximum
Maximum
mVpp
µF
100
100
200
200
1500
1500
330
330
MISCELLANEOUS
Switching Frequency
Isolation Strength
(Input output)
EMC Compliance
FC19-099 08/22 Revision D
2/4
Typical
Regular model
/Y option
Khz
250
Vdc
1500
3000
With input capacitor
With input filter
WWW.GAIA-CONVERTER.COM
EN555032 class A
EN555032 class B
MGDK25 25W POWER
2-THERMAL & MECHANICAL SPECIFICATIONS
Parameter
Conditions
Case temperature range
Storage temperature range
Not operating
Case Material
Limit
Units
Parameter
Mini.Max.
°C
-40 to 95
Mini.Max.
°C
Regular model
Pin Material
Copper plated with pure matte tin over nickel
underplate
Case to Air thermal resistance
Typical
Connections
Pin#
1
2
3
4
5
6
7
8
MGDSK25
(Single)
MGDBK25
(Symetrical)
MGDTK25
(Triple)
+Input (Vi)
-Input (Gi)
case
Not connected
Do not connect
Output (Vo)
Common (Go)
Do not connect
+Input (Vi)
-Input (Gi)
case
Not connected
Output+ (Vo)
Common (Go)
Output-(-Vo)
Do not connect
+Input (Vi)
-Input (Gi)
case
Not connected
Output2+ (+V2)
Output1+ (Vo1)
Common (Go)
Output2- (-V2)
Dimensions MGDK25
Dimensions are given in mm (inches) . Tolerance : +/-0.25mm (0.01’’) unless otherwise specified
weight : < 80gr (2.8oz) max.
FC19-099 08/22 Revision D
3/4
110
Metallic black anodized coated
WWW.GAIA-CONVERTER.COM
°C/W
7
MGDK25 25W POWER
3-APPLICATION
Typical connections
Input and output capacitor values are given as suggestions
OCP Function
The converter series incorporates an over current
protection circuit. When the output current reaches a
value above typically 200% of it’s full-rated current, the
converter falls into hiccup mode by testing periodically if
an overload is applied. The module restarts automatically
to normal operation when overcurrent is removed.
International Headquarters
GAÏA Converter - France
18 rue caroline Aigle
33186 LE HAILLAN - FRANCE
Tel. : + (33)-5-57-92-12-80
Fax : + (33)-5-57-92-12-89
FC19-099 08/22 Revision D
4/4
North American Headquarters
GAÏA Converter Canada, Inc
1405 Trans-Canada Hwy, Suite 520
DORVAL, QUEBEC H9P 2V9
Tel. : (514)-333-3169
Fax : (514)-333-4519
WWW.GAIA-CONVERTER.COM
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