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.
SINGLE OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT POWER
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
LOAD REGULATION
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
CONDITION
V
IN
= 16 to 40 VDC
V
IN
= 16 to 40 VDC
10 kHz - 2 MHz
Tc = –55°C to +125°C
Vin = 16 to 40 VDC
NO LOAD TO FULL
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
FULL LOAD
INHIBITED
10 kHz - 10 MHz
Tc = –55°C to +125°C
SHORT CIRCUIT
POWER DISSIPATION
RECOVERY
2
50% – 100% – 50%
TRANSIENT
RECOVERY
2
16 – 40 – 40 VDC
TRANSIENT
3
RECOVERY
2
DELAY
OVERSHOOT
4
MHF+2812S
MIN TYP MAX
11.88 12.00 12.12
0
— 1.25
0
—
—
—
—
16
—
—
—
—
—
—
78
—
—
–500
—
–800
—
0
0
—
30
50
5
20
28
—
25
680
5
35
—
79
3.5
7.5
150
150
550
0.8
10
15
80
120
50
50
40
50
50
752
12
80
120
—
6
30
500
300
800
1.2
25
MHF+2815S
MIN TYP MAX
14.85 15.00 15.15
0
— 1.00
0
—
—
—
—
16
—
—
—
—
—
—
78
—
—
–600
—
–800
—
0
0
—
30
50
5
20
28
—
25
670
5
35
—
80
3.5
7.5
200
150
550
0.8
10
15
80
120
50
50
40
50
62
752
12
80
120
—
6
30
600
300
800
1.2
25
MHF+2828S
MIN TYP MAX
27.72 28.00 28.28
0
— 0.54
0
—
—
—
—
16
—
—
—
—
—
—
82
—
—
–800
—
—
60
100
50
50
28
—
25
640
5
35
—
84
3.5
7.5
600
200
15
120
180
150
150
40
50
60
760
12
80
120
—
6
30
800
400
UNITS
VDC
A
W
mV p-p
mV
mV
VDC
V
mA
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
1
mA pp
%
W
ms
mV pk
μs
mV pk
ms
ms
mV pk
STEP LOAD RESP.
STEP LINE RESP.
–1200 1100 1200
—
0.8
1.2
0
0
10
200
25
280
START-UP
200 1200
200 1500
Notes
1. Indefinite short circuit protection not guaranteed above 125°C
(case)
2. Recovery time is measured from application of the transient to point
at which Vout is within regulation.
3. Input step transition time >10 μs.
4. Input step transition time <100 μs.
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Rev K - 20060613
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