Crane Aerospace & Electronics Power Solutions
MHF+ 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
CONDITION
MAIN
+ AUXILIARY
– AUXILIARY
OUTPUT CURRENT
2
MAIN
+ AUXILIARY
– AUXILIARY
TOTAL
OUTPUT POWER
3
MAIN
+ AUXILIARY
– AUXILIARY
TOTAL
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
4
V
IN
= MIN. TO MAX.
LOAD REGULATION
4, 5
CROSS REGULATION
6
INPUT VOLTAGE
10 kHz to 2 MHz
10 kHz to 2 MHz
MAIN
±AUXILIARY
MAIN
± AUXILIARY
– AUXILIARY
CONTINUOUS
TRANSIENT 120 ms
1
INPUT CURRENT
NO LOAD -55 - +25°C
NO LOAD +125°C
INHIBITED
4
INPUT RIPPLE CURRENT
EFFICIENCY
LOAD FAULT
7
POWER DISSIPATION
MAIN
4
±AUXILIARY
TRANSIENT
MAIN
± AUXILIARY
RECOVERY MAIN
RECOVERY ±AUX.
DELAY EACH OUTPUT
—
—
—
—
—
—
—
—
—
—
—
5
2
10
12
12
850
950
8
3
25
—
—
—
—
—
—
—
—
—
—
—
5
2
10
12
12
850
950
8
3
25
W
10 kHz to 10 MHz
MAIN
± AUXILIARY
MIN
4.95
11.64
11.64
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
—
74
MHF+28512T
TYP
5.0
12.0
12.0
—
—
—
—
—
—
—
—
20
30
25
120
25
120
—
28
—
20
30
3
20
76
MAX
5.05
12.36
12.36
1.5
0.416
0.416
2.125
7.5
5
5
15
60
90
75
240
75
240
600
48
80
35
45
5
50
—
MIN
4.95
14.55
14.55
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
—
74
MHF+28515T
TYP
5.0
15.0
15.0
—
—
—
—
—
—
—
—
20
30
25
150
25
150
—
28
—
20
30
3
20
76
MAX
5.05
15.45
15.45
1.5
0.333
0.333
2.0
7.5
5
5
15
60
112
75
300
75
300
600
48
80
35
45
5
50
—
mA p-p
%
mA
mV
VDC
V
mV
mV p-p
mV
W
A
VDC
UNITS
STEP LOAD
RESPONSE
4, 8, 9
mV pk
ms
ms
START-UP
4
Notes
1. Guaranteed, not tested
2. The sum of the 12 volt auxiliary output currents may not exceed 625 mA.
The sum of the 15 volt auxiliary output currents may not exceed 500 mA.
3. The sum of the auxiliary output power may not exceed 7.5 watts.
4. Case temperature –55°C to +125°C.
5. Load regulation for the +5 is specified at 0.0 to 1.5 A with the aux. both held
at 3.76 W (313 mA for the ±12, 250 mA for the ±15). Load regulation for the
aux. is specified as both aux. from 0.0 to 3.76 W (313 mA for ±12, 250 mA
for ±15) at the same time with the +5 held at 1.5 A.
6. Cross regulation only occurs between the two auxiliaries and is measured on
–aux. +5 is held constant at 1.0 A. Cross regulation is specified for two
conditions:
Negative aux.= 3.76 W; positive aux.= 0.37 W to 3.76 W.
Negative aux. = 0.37 W to 3.76 W; positive aux. = 3.76 W.
7. Load fault = <0.05 Ω.
8. Transition time is 2 – 10 μs.
9. Time to settle to within 1% of Vout final value.
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Rev K - 20060613
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