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The serie includes dual output voltage choices

individually isolated of 2 x 5 volts , 2 x 12 volts, 2

x 15 volts and 2 x 24 volts with easy configurability.

All the modules are designed with LC network

filters to minimize reflected input current ripple.

The  modules  include  a  soft-start,  an  input

undervoltage lock-out, a permanent short circuit

protection and an output overvoltage limitation

4

to ensure efficient module protections. The soft-

start allows current limitation and eliminates

inrush current during start-up. The short circuit

protection  compley  protects  the  modules

against short-circuits of any duration by a shut-

down and restores to normal when the overload

is removed.

The modules are potted with a bi-component ther-

mal conductive compound to ensure optimum

power dissipation under harsh environmental con-

ditions.

Single output model

: MGDD - 20 -

input

output

/

option

Input Voltage Range

Output

Permanent

Transient

C

:

2 x 5 VDC

E

:

2 x 12 VDC

R   :   12-160 VDC

10,7 VDC / 1  s

F

:

2 x 15 VDC

I

:

2 x 24 VDC

Hi-Rel

MGDD-20 Series

Grade

Input range

Output

Current per Output

12-160

VDC

2 x 5 VDC

2 A

12-160

VDC

2 x 12 VDC

0,825

A

12-160

VDC

2 x 15 VDC

0,65 A

12-160

VDC

2 x 24 VDC

0,425

A

Parallel Connection

Series Connection

4 - 5,5 VDC

8 - 11 VDC

9,6 - 13,2 VDC

19,2

- 26,4

VDC

12 - 16,5 VDC

24 - 33 VDC

19,2 - 26,4 VDC

38,4

- 52,8

VDC

Hi-Rel

MGDD-20 Series

Grade

Parameter

Conditions

Limit or

Units

Dual Output

typical

MGDD-20 - R

Input

Nominal input voltage

Full temperature range

Nominal

VDC

28

Permanent input

Full temperature range

Min. - Max.

VDC

12-160

voltage range (Ui)

Full load

Transient input voltage

Full load

Minimum

VDC/s

10,7 / 1

Undervoltage lock-out

Turn-on voltage

Maximum

VDC

11,8

(UVLO)

Turn-off voltage

Maximum

VDC

10,5

Ui nominal within 3 ms

Start up time

Nominal output

Maximum

ms

30

Full load : resistive

Reflected ripple current

Ui nominal, full load at

Maximum

% Inom.

TBD

switching freq. BW = 20MHz

No load input power

Ui nominal

Maximum

W

1

No load

Standby input power

Ui nominal

Maximum

W

1

Output

Full temperature range

Nominal

VDC

2 x  5

Nominal

VDC

2 x 12

Output voltage

Ui min. to max.

Nominal

VDC

2 x 15

75% load

Nominal

VDC

2 x 24

Set Point accuracy

Ambient temperature : +25°c

Maximum

%

+/- 2

Ui nominal, 75% load

Total output power  with

Full temperature range

Maximum

W

20

both outputs

Ui min. to max.

Output current per output

5V output

Full temperature range

Nominal

A

2,0

12V output

Full load

Nominal

A

0,825

15V output

Ui min. to max.

Nominal

A

0,65

24V output

Nominal

A

0,425

Unbalanced output

Minimum load on V01

Typical

W

2

for Vo2 proper operation

Ripple output voltage **

5V output

Ui nominal

Maximum

mVpp

100

12V output

Full load

Maximum

mVpp

240

15V output

BW = 20MHz

Maximum

mVpp

300

24V output

Maximum

mVpp

520

Output regulation *

Ui min. to max.

Maximum

%

+/- 1,5

(Line + load + thermal)

0% to full load

Ui min. to max.

Cross load output regulation

V01 at nominal load

Maximum

%

+/-2

V02 from 25% to full load

Output voltage trim

As a function of output voltage

Minimum

%

80

Maximum

%

110

Maximum admissible

capacitive load

Ui nominal

5V output

Maximum

µF

2 200

Full load

12V output

Maximum

µF

820

Per output

15V output

Maximum

µF

680

24V output

Maximum

µF

470

Efficiency

Ui nominal

Typical

%

up to 89