Crane Aerospace & Electronics Power Solutions
MHV Single, Dual and Triple DC/DC Converters
28 VOLT INPUT – 15 WATT
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
TRIPLE OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
MHV28512T
MIN
TYP
MAX
4.95
5.0
5.05
11.88
11.82
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
76
—
—
---
—
—
—
—
—
---
---
---
---
—
—
—
—
12.0
12.0
—
0.208
0.208
—
—
—
---
—
8
9
0
5
7
10
10
40
400
28
—
30
8.4
10
78
—
—
---
—
—
—
—
7
---
---
---
---
—
—
—
—
12.12
12.18
2.0
0.333
0.333
2.416
10
4
4
15
22
22
5
35
40
20
30
70
800
50
80
37
10
30
—
9
9
25
250
550
2.5
3.5
15
100
240
200
100
400
500
3
4
MHV28515T
MIN
TYP
MAX
4.95
5.0
5.05
14.85
14.77
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
75
—
—
---
—
—
—
—
—
---
---
---
---
—
—
—
—
15.0
15.0
—
0.167
0.167
—
—
—
_
—
8
9
0
7
7
10
10
40
400
28
—
34
8.4
10
78
—
—
---
—
—
—
—
7
---
---
---
---
—
—
—
—
15.15
15.23
2.0
0.267
0.267
2.333
10
4
4
15
22
22
5
35
40
20
30
80
800
50
80
41
10
30
—
9
9
25
250
550
2.5
3.5
15
100
300
200
100
400
500
3
4
mA
CONDITION
MAIN
+ AUXILIARY
– AUXILIARY
MAIN
+ AUXILIARY
– AUXILIARY
TOTAL
UNITS
VDC
OUTPUT CURRENT
2
V
IN
= 16 TO 50
A
OUTPUT POWER
3
V
IN
= 16 TO 50
MAIN
+ AUXILIARY
W
– AUXILIARY
TOTAL
OUTPUT RIPPLE
10 kHz to 2 MHz
MAIN
VOLTAGE Tc= -55° to +125°C 10 kHz to 2 MHz
± AUXILIARY
LINE REGULATION
MAIN
V
IN
= MIN. TO MAX.
+AUXILIARY
– AUXILIARY
LOAD REGULATION
MAIN
+AUXILIARY
– AUXILIARY
CROSS REGULATION
4
INPUT VOLTAGE
1
INPUT CURRENT
INPUT RIPPLE CURRENT
Tc= -55° to +125°C
EFFICIENCY
LOAD FAULT /
SHORT CIRCUIT
4
10 kHz to 10 MHz
- AUXILIARY CONDITION A & B
CONTINUOUS
TRANSIENT 120 ms
NO LOAD
INHIBITED
mV p-p
mV
mV
mV
VDC
mA p-p
%
W
mS
mV
ms
ms
mV pk
μF
mV pk
mS
POWER DISSIPATION
MAIN
± AUXILIARY
RECOVERY - EACH OPUTPUT
MAIN
STEP LOAD RESPONSE
6, 7
TRANSIENT
± AUXILIARY
RECOVERY
MAIN
± AUXILIARY
START-UP
7
DELAY EACH OUTPUT
OVERSHOT
MAIN
± AUXILIARY
CAPACITIVE LOAD
1
MAIN˜
± AUXILIARY
TRANSIENT
1
MAIN
STEPLINE RESPONSE
7
± AUXILIARY
MAIN
RECOVERY
1
± AUXILIARY
Notes
1. Guaranteed by design, not tested.
2. The sum of the 12 volt auxiliary output currents may not exceed 416 mA.
The sum of the 15 volt auxiliary output currents may not exceed 333 mA.
3. The sum of the auxiliary output power may not exceed 5 watts.
4. Cross regulation occurs between the two auxiliaries and is measured on –aux. +5 is held
constant at 2.0 A. Cross regulation is specified for two conditions:
A. Positive aux. = 2.5 W; -(50%) negative aux. = 2.5 W to 0.5 W (50% to 10%).
B. From +Po = 70% and -Po = 30% to + Po = 30% and -Po =70%.
Above conditions are referenced to 50%/50% balanced loads.
5. Load fault is a short circuit (<50 mΩ). Recovery is into a resistive load.
6. Load step transition ≥ 10 μs. Recovery = time to settle to within 1% of Vout final value.
7. Input step transition ≥ 10 μs. Recovery = time to settle to within 1% of Vout final value.
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