MTR Single, Dual and Triple DC/DC Converters
Crane Aerospace & Electronics Power Solutions
Page 8 of 19
Rev G - 20060505
www.craneae.com
28 VOLT INPUT – 30 WATT
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
TRIPLE OUTPUT MODELS
MTR28512T
MTR28515T
PARAMETER
CONDITION
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
OUTPUT VOLTAGE
MAIN
4.95
5.0
5.05
4.95
5.0
5.05
+ AUXILIARY
11.82
12.0
12.18
14.77
15.0
15.23
VDC
– AUXILIARY
11.82
12.0
12.18
14.77
15.0
15.23
OUTPUT CURRENT2
MAIN
0.3
—
4.0
0.3
—
4.0
VIN = 16 TO 40
+ AUXILIARY
—
0.416
0.750
—
0.333
0.600
A
– AUXILIARY
—
0.416
0.750
—
0.333
0.600
OUTPUT POWER2
MAIN
—
20
—
20
VIN = 16 TO 40
+ AUXILIARY
—
5
9
—
5
9
W
– AUXILIARY
—
5
9
—
5
9
TOTAL
—
30
—
30
OUTPUT RIPPLE
10 kHz to 2 MHz
MAIN
—
50
125
—
50
125
VOLTAGE
± AUXILIARY
—
20
60
—
20
60
mV p-p
LINE REGULATION
MAIN
—
10
20
—
10
20
mV
VIN = 16 TO 40
±AUXILIARY
—
25
75
—
30
75
LOAD REGULATION3, 4
MAIN
—
10
50
—
10
50
mV
± AUXILIARY
—
30
75
—
30
75
INPUT VOLTAGE
CONTINUOUS
16
28
40
16
28
40
VDC
TRANSIENT 50 ms
—
50
—
50
INPUT CURRENT
NO LOAD
—
70
100
—
70
120
mA
INHIBITED
—
3.0
6
—
3.0
6
mA
INPUT RIPPLE CURRENT
10 kHz TO 10 MHz
—
20
45
—
20
45
mA p-p
EFFICIENCY
72
75
—
73
75
—
%
LOAD FAULT5
POWER DISSIPATION
SHORT CIRCUIT
ALL OUTPUTS SHORTED TOTAL
—
14
—
14
—
W
RECOVERY EACH OUTPUT1
—
4
6.0
—
4
6.0
ms
STEP LOAD RESPONSE
TRANSIENT6
MAIN
—
150
250
—
150
250
mV pk
± AUXILIARY
—
500
800
—
500
800
RECOVERY7
MAIN
—
0.05
0.10
—
0.05
0.10
ms
± AUXILIARY
—
3
4
—
2
4
STEP LINE RESPONSE
1
TRANSIENT
MAIN
—
150
250
—
150
250
mV pk
VIN = 16 TO 40
± AUXILIARY
—
100
250
—
100
250
START-UP8
DELAY
—
4
6.0
—
4
6.0
ms
OVERSHOOT
MAIN1
—
0
500
—
0
500
mV
± AUXILIARY1
—
0
1500
—
0
1500
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.