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
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
1
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
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 – 16 VDC
TRANSIENT
3
RECOVERY
2
DELAY
OVERSHOOT
4
CAPACITIVE LOAD
MHF+283R3S
MIN
3.27
0
0
—
—
—
—
16
—
—
—
—
—
70
—
—
–400
—
–800
—
—
—
TYP MAX
3.30 3.33
—
2.4
—
30
50
5
20
28
—
25
5
45
—
75
5
7.5
150
150
550
0.8
10
200
8
80
800
100
50
40
50
40
12
80
120
—
8
30
400
300
800
1.2
25
300
300
MHF+2805S
MIN
4.95
0
0
—
—
—
—
16
—
—
—
—
—
75
—
—
–400
—
–800
—
—
—
TYP MAX
5.00 5.05
—
2.4
—
30
60
5
20
28
—
25
5
35
—
77
3.5
7.5
150
150
550
0.8
10
100
12
80
100
50
50
40
50
40
12
80
100
—
6
30
400
300
800
1.2
25
600
300
MHF+285R2S
MIN
5.16
0
0
—
—
—
—
16
—
—
—
—
—
75
—
—
–400
—
–800
—
—
—
TYP MAX
5.20 5.24
—
2.4
—
30
60
5
20
28
—
25
5
35
—
77
3.5
7.5
150
150
550
0.8
10
100
12.48
50
100
35
35
40
50
42
12
80
120
—
6
30
400
300
800
1.2
25
600
300
mA
mApp
%
W
ms
mV pk
μs
mV pk
ms
ms
mV pk
μF
UNITS
VDC
A
W
mV p-p
mV
mV
VDC
V
STEP LOAD RESP.
STEP LINE RESP.
START-UP
Notes
1. Indefinite short circuit protection not guaranteed above 125°C
(case)
2. Recovery time is measured from application of the transient
to the 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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