Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT – 30 WATT
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
TRIPLE OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
CONDITION
MAIN
+ AUXILIARY
– AUXILIARY
OUTPUT CURRENT
2
V
IN
= 16 TO 40
OUTPUT POWER
2
V
IN
= 16 TO 40
MAIN
+ AUXILIARY
– AUXILIARY
MAIN
+ AUXILIARY
– AUXILIARY
TOTAL
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
V
IN
= 16 TO 40
LOAD REGULATION
3, 4
INPUT VOLTAGE
10 kHz to 2 MHz
MAIN
± AUXILIARY
MIN
4.95
11.82
11.82
0.3
—
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
72
POWER DISSIPATION
SHORT CIRCUIT
ALL OUTPUTS SHORTED TOTAL
RECOVERY EACH OUTPUT
1
STEP LOAD RESPONSE
TRANSIENT
6
RECOVERY
7
STEP LINE RESPONSE
V
IN
= 16 TO 40
START-UP
8
1
MTR28512T
TYP
5.0
12.0
12.0
—
0.416
0.416
20
5
5
—
50
20
10
25
10
30
28
—
70
3.0
20
75
MAX
5.05
12.18
12.18
4.0
0.750
0.750
20
9
9
30
125
60
20
75
50
75
40
50
100
6
45
—
MIN
4.95
14.77
14.77
0.3
—
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
73
MTR28515T
TYP
5.0
15.0
15.0
—
0.333
0.333
20
5
5
—
50
20
10
30
10
30
28
—
70
3.0
20
75
MAX
5.05
15.23
15.23
4.0
0.600
0.600
20
9
9
30
125
60
20
75
50
75
40
50
120
6
45
—
mA
mA
mA p-p
%
VDC
mV
mV p-p
mV
W
A
VDC
UNITS
MAIN
±AUXILIARY
MAIN
± AUXILIARY
CONTINUOUS
TRANSIENT 50 ms
INPUT CURRENT
INPUT RIPPLE CURRENT
EFFICIENCY
LOAD FAULT
5
NO LOAD
INHIBITED
10 kHz TO 10 MHz
—
—
—
—
—
—
—
—
—
—
—
14
4
150
500
0.05
3
150
100
4
0
0
—
6.0
250
800
0.10
4
250
250
6.0
500
1500
—
—
—
—
—
—
—
—
—
—
—
14
4
150
500
0.05
2
150
100
4
0
0
—
6.0
250
800
0.10
4
250
250
6.0
500
1500
W
ms
mV pk
ms
mV pk
ms
mV
MAIN
± AUXILIARY
MAIN
± AUXILIARY
MAIN
± AUXILIARY
MAIN
1
± AUXILIARY
1
TRANSIENT
DELAY
OVERSHOOT
Notes
1. Guaranteed, not tested.
2. The sum of the two aux outputs is not to exceed 10 watts. The maximum
load per aux output is 9 watts.
3. To maintain regulation when operating the ±Aux at full load, a minimum load
of 300 mA is required on the main.
4. Measured on each output one at a time with the other outputs at full load.
5. Indefinite short circuit protection not guaranteed above 125°C (case).
6. Response of each output as all outputs are simultaneously transitioned.
Main: 50% - 100% - 50% of main full load
Auxiliaries: 25% - 50% - 25% each, of total auxiliary full load
7. Recovery time is measured from application of the transient to point at
which Vout is within 1% of regulation.
8. Tested on release from inhibit.
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