Crane Aerospace & Electronics Power Solutions
sMsa single and dual dc/dc converters
28 Volt input – 5 Watt - pending reVision F release
electrical Characteristics: 25°C Tc, 28 VdC Vin, 100% load, radiation level o, unless otherwise specified.
single ouTPuT models
parameter
Output VOltage
Output Current
Output pOWer
Output ripple
line regulatiOn
lOaD regulatiOn
input VOltage
COnDitiOnS
tC = -55°C
tO
+125°C
tC = -55°C
tO
+125°C
V
in
= 16
tO
40 VDC
tC = -55°C
tO
+125°C
V
in
= 16
tO
40 VDC
10
k
h
z
- 2 mh
z
V
in
= 16
tO
40 VDC
tC = -55°C
tO
+125°C
nO lOaD tO Full
tC = -55°C
tO
+125°C
COntinuOuS
nO lOaD tO Full
tC = -55°C
tO
+125°C
TRansienT
1
50 ms
nO lOaD
Full lOaD
inhibiteD
input ripple
Current
eFFiCienCy
lOaD Fault
1, 2
10
k
h
z
- 10 mh
z
tC = -55°C
tO
+125°C
ShOrt CirCuit
pOWer DiSSipatiOn
reCOVery
Step lOaD
reSpOnSe
Step line
reSpOnSe
1, 3
50% - 100% - 50%
tranSient
reCOVery
1, 3
tranSient
16 - 40 VDC
40 - 16 VDC
reCOVery
16 - 40 VDC
40 - 16 VDC
OVerShOOt
1
Delay
smsa2812s
min typ maX
11.88 12.00 12.12
—
—
—
—
—
16
—
—
125
10
10
28
smsa2815s
min typ maX
14.85 15.00 15.15
—
—
150
10
10
28
333
5
600
50
50
40
unitS
VdC
ma
W
mV p-p
mV
mV
VdC
417 —
5
500
—
—
50 —
50 —
40
16
0
—
—
—
—
—
69
—
—
—
—
—
—
—
—
—
—
—
35
235
3
50
60
74
1.2
1
300
400
200
250
700
700
10
0
50
0
—
35
235
3
50
60
74
1.2
1
400
400
200
250
500
500
10
0
50
60
—
5
200
300
—
1.8
10
1000
1000
500
500
1300
1300
75
500
V
ma
input Current
60 —
— —
5
—
200 —
300 —
— —
1.9
10
750
1000
800
600
1300
1300
—
—
—
—
—
—
—
—
ma p-p
%
W
ms
mV pk
µs
mV pk
µs
ms
mV pk
Start-up
3
75 —
500 —
notes
1. guaranteed by design, not tested.
2. indefinite short circuit protection not guaranteed above 125°C
(case).
3. Recovery time is measured from application of the transient to
point at which V
out
is within 1% of V
out
at final value.
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Page 7 of 14
Rev F - 20090318 - Pending Revision F Release
CRANE [ Crane Aerospace & Electronics. ]
