Crane Aerospace & Electronics Power Solutions
SMFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
Electrical Characteristics: –55°C to +125°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT POWER
OUTPUT RIPPLE
10
K
H
Z
- 2 MH
Z
LINE REGULATION
LOAD REGULATION
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
CONDITIONS
TC = 25°C
V
IN
= 19
TO
40 VDC
V
IN
= 19
TO
40 VDC
TC = 25°C
TC = -55°C
TO
+125°C
V
IN
= 19
TO
40 VDC
NO LOAD TO FULL
CONTINUOUS
TRANSIENT
1,
2
50 ms
NO LOAD
INHIBITED - INH1
INHIBITED - INH2
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
TC = 25°C
10
K
H
Z
- 10 MH
Z
TC = 25°C
SHORT CIRCUIT
POWER DISSIPATION
RECOVERY
1
STEP LOAD
RESPONSE
50% - 100% - 50%
TRANSIENT
RECOVERY
1,
3
STEP LINE
RESPONSE
1
19 - 40 -19 VDC
TRANSIENT
4
RECOVERY
3
START-UP
DELAY
OVERSHOOT
1
SMFLHP283R3S
MIN
3.26
0
0
—
—
—
—
19
—
—
—
—
—
70
—
—
—
—
—
—
—
—
TYP
3.30
—
—
10
20
0
0
28
—
70
9
35
30
72
15
1.5
350
1.5
250
200
3.5
0
3.34
16
53
25
40
50
SMFLHP2805S
TYP
5.00
—
—
15
30
0
0
28
—
70
9
35
30
80
15
1.5
350
1.5
250
200
3.5
0
MAX
5.05
16
80
50
90
50
20
40
50
120
15
80
4.95
0
0
—
—
—
SMFLHP2812S
MIN
TYP
SMFLHP2815S
TYP
MAX
UNITS
VDC
A
W
mV p-p
mV
mV
VDC
V
mA
MAX MIN
MAX MIN
11.88 12.00 12.12 14.85 15.00 15.15
0
0
—
—
—
—
19
—
—
—
—
—
—
30
45
0
0
28
—
80
9
35
30
86
15
1.5
450
1.5
250
200
3.5
0
7.5 0
90 0
85
150
—
—
—
—
30
45
0
0
28
—
80
9
35
30
87
15
1.5
450
1.5
250
200
3.5
0
6.67
100
95
175
50
20
40
50
120
15
80
80
—
20
4
700
3.0
800
600
10
50
50 —
20 —
40
50
120
15
80
19
—
—
—
—
20 —
40
19
50 —
120
15
80
80
—
22
10
400
—
—
—
—
77
—
—
—
80 —
—
20
81
—
80 —
— 82
20
—
mA p-p
%
W
ms
mV pk
ms
mV pk
μ
s
ms
mV pk
4 —
450
3.0
400
600
—
—
—
—
4 —
700
3.0
800
600
10
50
—
—
—
—
—
—
3.0 —
400
300
10
50
—
—
—
—
10 —
25
—
Notes
1. Guaranteed by design, not tested.
2. Unit will shut down above approximately 45V but will be undamaged and will restart
when voltage drops into normal range.
3. Recovery time is measured from application of the transient to point at which Vout
is within 1% of final value.
4. Transition time >10
μs.
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Rev H - 20071221
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