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.
MHV Single, Dual and Triple DC/DC Converters
Crane Aerospace & Electronics Power Solutions
Page 8 of 14
Rev D- 20060710
www.craneae.com
28 VOLT INPUT – 15 WATT
TRIPLE OUTPUT MODELS
MHV28512T
MHV28515T
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
11.88
12.0
12.12
14.85
15.0
15.15
VDC
– AUXILIARY
11.82
12.0
12.18
14.77
15.0
15.23
OUTPUT CURRENT2
MAIN
0
—
2.0
0
—
2.0
VIN = 16 TO 50
+ AUXILIARY
—
0.208
0.333
—
0.167
0.267
A
– AUXILIARY
—
0.208
0.333
—
0.167
0.267
TOTAL
—
2.416
—
2.333
OUTPUT POWER3
MAIN
—
10
—
10
VIN = 16 TO 50
+ AUXILIARY
—
4
—
4
W
– AUXILIARY
—
---
4
—
_
4
TOTAL
—
15
—
15
OUTPUT RIPPLE
10 kHz to 2 MHz
MAIN
—
8
22
—
8
22
VOLTAGE Tc= -55° to +125°C 10 kHz to 2 MHz
± AUXILIARY
—
9
22
—
9
22
mV p-p
LINE REGULATION
MAIN
—
0
5
—
0
5
VIN = MIN. TO MAX.
+AUXILIARY
—
5
35
—
7
35
mV
– AUXILIARY
—
7
40
—
7
40
LOAD REGULATION
MAIN
—
10
20
—
10
20
+AUXILIARY
—
10
30
—
10
30
mV
– AUXILIARY
—
40
70
—
40
80
CROSS REGULATION4
- AUXILIARY CONDITION A & B
—
400
800
—
400
800
mV
INPUT VOLTAGE1
CONTINUOUS
16
28
50
16
28
50
VDC
TRANSIENT 120 ms
—
80
—
80
INPUT CURRENT
NO LOAD
—
30
37
—
34
41
mA
INHIBITED
—
8.4
10
—
8.4
10
INPUT RIPPLE CURRENT
Tc= -55° to +125°C
10 kHz to 10 MHz
—
10
30
—
10
30
mA p-p
EFFICIENCY
76
78
—
75
78
—
%
LOAD FAULT /
POWER DISSIPATION
MAIN
—
9
—
9
W
SHORT CIRCUIT4
± AUXILIARY
—
9
—
9
RECOVERY - EACH OPUTPUT
---
25
---
25
mS
STEP LOAD RESPONSE6, 7 TRANSIENT
MAIN
—
250
—
250
± AUXILIARY
—
550
—
550
mV
RECOVERY
MAIN
—
2.5
—
2.5
ms
± AUXILIARY
—
3.5
—
3.5
START-UP7
DELAY EACH OUTPUT
—
7
15
—
7
15
ms
OVERSHOT
MAIN
---
100
---
100
± AUXILIARY
---
240
---
300
mV pk
CAPACITIVE LOAD1
MAIN
---
200
---
200
μF
± AUXILIARY
---
100
---
100
STEPLINE RESPONSE7
TRANSIENT1
MAIN
—
400
—
400
± AUXILIARY
—
500
—
500
mV pk
RECOVERY1
MAIN
—
3
—
3
mS
± AUXILIARY
—
4
—
4
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.