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
MHF+283R3S
MHF+2805S
MHF+285R2S
PARAMETER
CONDITION
MIN TYP MAX
MIN TYP MAX
MIN TYP MAX
UNITS
VDC
A
OUTPUT VOLTAGE
3.27 3.30 3.33
4.95 5.00 5.05
5.16 5.20 5.24
OUTPUT CURRENT
OUTPUT POWER
V
V
= 16 to 40 VDC
= 16 to 40 VDC
0
0
—
—
2.4
8
0
0
—
—
2.4
12
0
0
—
—
2.4
12.48
IN
IN
W
OUTPUT RIPPLE
10 kHz - 2 MHz
—
—
—
—
16
—
30
50
5
20
28
—
80
800
100
50
—
—
—
—
16
—
30
60
5
20
28
—
80
100
50
—
—
—
—
16
—
30
60
5
20
28
—
50
100
35
mV p-p
VOLTAGE
Tc = –55°C to +125°C
Vin = 16 to 40 VDC
NO LOAD TO FULL
CONTINUOUS
LINE REGULATION
LOAD REGULATION
INPUT VOLTAGE
NO LOAD TO FULL
mV
mV
VDC
V
50
35
40
40
50
40
50
TRANSIENT 50 ms
50
INPUT CURRENT
NO LOAD
INHIBITED
10 kHz - 10 MHz
Tc = –55°C to +125°C
—
—
—
—
70
25
5
45
—
75
40
12
—
—
—
—
75
25
5
35
—
77
40
12
—
—
—
—
75
25
5
35
—
77
42
12
mA
INPUT RIPPLE
CURRENT
80
80
80
mApp
120
—
100
—
120
—
EFFICIENCY
LOAD FAULT
%
1
SHORT CIRCUIT
POWER DISSIPATION
—
—
5
7.5
8
30
—
—
3.5
7.5
6
30
—
—
3.5
7.5
6
30
W
ms
2
RECOVERY
STEP LOAD RESP.
STEP LINE RESP.
START-UP
50% – 100% – 50%
TRANSIENT
–400 150 400
150 300
–400 150 400
150 300
–400 150 400
150 300
mV pk
μs
2
RECOVERY
—
—
—
16 – 40 – 16 VDC
3
2
TRANSIENT
–800 550 800
–800 550 800
–800 550 800
mV pk
ms
ms
mV pk
μF
RECOVERY
—
—
—
0.8
10
200 300
300
1.2
25
—
—
—
0.8
10
100 600
300
1.2
25
—
—
—
0.8
10
100 600
300
1.2
25
DELAY
OVERSHOOT
4
CAPACITIVE LOAD
Notes
1. Indefinite short circuit protection not guaranteed above 125°C
(case)
3. Input step transition time >10 μs.
4. Input step transition time <100 μs.
2. Recovery time is measured from application of the transient
to the point at which Vout is within regulation.
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Rev K - 20060613
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