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.
dual ouTPuT models
parameter
Output VOltage
Output Current
2
Output pOWer
2
Output ripple
line regulatiOn
lOaD regulatiOn
CrOSS regulatiOn
3
input VOltage
COnDitiOnS
+ V
Out
- V
Out
smsa2805d
min typ maX
4.95
4.9
—
—
—
+ V
Out
+ V
Out
- V
Out
—
—
—
—
—
16
—
—
—
—
—
—
65
5.00
5.0
±500
—
—
20
40
10
100
5
28
—
30
248
3
50
60
70
1.3
—
±200
200
±200
±200
300
800
10
0
5.1
smsa2812d
min typ maX
11.76 12.00 12.24
±208
—
80
20
40
10
100
3.7
28
—
40
235
3
50
60
73
1.3
1
±200
200
±200
±200
300
800
10
0
333
5
smsa2815d
min typ maX
14.85 15.00 15.15
14.70 15.00 15.30
—
—
±167
—
120
10
40
10
50
3
28
—
38
235
3
50
60
73
1.3
1
±200
200
±600
±600
500
500
10
0
267
5
300
50
180
50
200
6
40
50
60
—
5
200
300
—
1.6
30
±600
500
±1500
±1500
1200
1200
25
500
unitS
VdC
ma
W
mV p-p
mV
5.05 11.88 12.00 12.12
800 —
5
300
100
200
120
400
8
—
—
—
—
—
—
—
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
300 —
100 —
200 —
120 —
400
6
40
50
—
—
16
—
- V
Out
+p
O
= 30–70%, -p
O
= 70–30%
-p
O
= 30–70%, +p
O
= 70–30%
COntinuOuS
nO lOaD tO Full
nO lOaD
Full lOaD
inhibiteD
%
VdC
V
ma
40 16
50
—
5
200
300
—
—
—
—
—
TRansienT
1
50 ms
input Current
50 —
63 —
— —
5
—
200 —
300 —
— 68
1.7
±550
500
±500
±500
750
2000
—
—
—
—
—
—
—
input ripple
Current
lOaD Fault
1, 4
eFFiCienCy
10
k
h
z
- 10 mh
z
tC = -55°C
tO
+125°C
ShOrt CirCuit
pOWer DiSSipatiOn
reCOVery
50% - 100% - 50% tranSient
reCOVery
1, 5
tranSient
16 - 40 VDC
40 - 16 VDC
reCOVery
16 - 40 VDC
40 - 16 VDC
ma p-p
%
W
ms
mV pk
µs
mV pk
µs
ms
mV pk
— 67
2.1
50
500
—
—
—
—
—
—
—
—
—
—
—
—
—
30 —
Step lOaD
reSpOnSe
Step line
reSpOnSe
1, 5
±550 —
±500 —
±500 —
750
—
2000 —
30 —
500 —
Start-up
OVerShOOt
1
Delay
30 —
500 —
notes
1. guaranteed but not tested.
2. up to 4 watts (80% of full power) is available from either output providing the oppo-
site output is carrying 20% of total power.
3. shows regulation effect on the minus output during the defined cross loading condi-
tions, with 80% and 20% referring to the total output power of the converter. see
Figures 15 and 16.
4. indefinite short circuit protection not guaranteed above 125°C (case).
5. Recovery time is measured from application of the transient to point at which V
out
is within 1% of V
out
at final value.
www.interpoint.com
Page 8 of 14
Rev F - 20090318 - Pending Revision F Release
CRANE [ Crane Aerospace & Electronics. ]
