Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
Electrical Characteristics: –50°C to +100°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
DUAL OUTPUT MODELS
8
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT
2
V
IN
= 19
TO
40 VDC
OUTPUT POWER
2
V
IN
= 19
TO
40 VDC
OUTPUT RIPPLE
± V
OUT
LINE REGULATION
V
IN
= 19 TO 40 VDC
LOAD REGULATION
NO LOAD TO FULL
CROSS REGULATION
TC = 25°C
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
TC = 25°C
CONDITIONS
TC = 25°C
+ V
OUT
- V
OUT
EACH OUTPUT
TOTAL OUTPUT
EACH OUTPUT
TOTAL OUTPUT
10
K
H
Z
- 2 MH
Z
+ V
OUT
- V
OUT
+ V
OUT
- V
OUT
SEE NOTE 3
SEE NOTE 4
CONTINUOUS
TRANSIENT 50 msec.
1, 5
NO LOAD
INHIBITED–INH1
INHIBITED–INH2
INPUT RIPPLE
CURRENT
EFFICIENCY
TC = 25°C
LOAD FAULT
TC = 25°C
STEP LOAD
RESPONSE
± V
OUT
STEP LINE
RESPONSE
± V
OUT
START-UP
8
10
K
H
Z
- 10 MH
Z
BALANCED LOAD
POWER DISSIPATION
SHORT CIRCUIT
RECOVERY
1
50% - 100% - 50%
TRANSIENT
RECOVERY
6
19 - 40 -19 VDC
TRANSIENT
1, 7
RECOVERY
1, 6
DELAY
OVERSHOOT
1
MFLHP2805D
MIN
4.95
4.92
0
0
0
0
—
—
—
—
—
—
—
19
0
—
—
—
—
78
TYP
5.00
5.00
—
—
—
—
25
0
25
0
25
6
7
28
—
50
9
35
15
80
MAX
5.05
5.08
11.2
56
80
125
50
100
50
100
8
8
40
80
120
14
70
MFLHP2812D
MIN
TYP
MAX
11.88 12.00 12.12
11.82 12.00 12.18
0
0
0
—
—
—
—
—
—
—
19
0
—
—
—
—
—
—
—
50
0
25
10
50
2
2
28
—
50
9
35
15
86
MFLHP2815D
MIN
TYP
MAX
UNITS
VDC
14.85 15.00 15.15
14.77 15.00 15.23
—
—
—
—
50
0
25
10
50
2
2
28
—
50
9
35
15
87
4.67
6.67
70
100
200
50
100
100
200
4
4
40
80
100
14
70
50
—
mA p-p
%
mA
%
VDC
V
mV
W
mV p-p
mV
A
5.3 0
7.5 0
63
90
150
50
100
100
200
4
4
40
80
100
14
70
0
0
—
—
—
—
—
—
—
19
0
—
—
—
16.0 0
50 —
—
83
50 —
—
84
—
—
—
—
—
—
—
—
15
1.5
350
1.5
250
200
3.5
0
20
4.0
450
3.0
400
300
25
—
—
—
—
—
—
—
15
1.5
450
1.5
250
200
3.5
0
20
4.0
700
3.0
400
300
50
—
—
—
—
—
—
—
15
1.5
450
1.5
250
200
3.5
0
20
4.0
700
3.0
400
300
6
50
W
m sec
mV pk
m sec
mV pk
μs
m sec
mV pk
6 —
6 —
Notes:
1. Guaranteed by design, not tested.
2. Up to 70% of the total output power is available from either output
providing the opposite output is simultaneously carrying 30% of the
total power.
3. Effect on negative Vout from 50%/50% loads to 30%/70% or 70%/30%
loads.
4. Effect on negative Vout from 50%/50% loads to 10% then 50% load
on negative Vout.
5. Unit will shut down above approximately 45V but will be undamaged
and will restart when voltage drops into normal range.
6. Recovery time is measured from application of the transient to point at
which Vout is within 1% of final value.
7. Transition time
≥
10
μs.
8. Parallel/current share operation is not characterized for dual output
models.
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