Crane Aerospace & Electronics Power Solutions
sMrt28 singlꢂ, Dꢀꢄl ꢄnd tꢃiplꢂ spꢄꢇꢂ Dc/Dc convꢂꢃꢁꢂꢃꢈ
28 VOLt Iꢆꢅut – 35 Watt – sꢅace quaLIFIeD
Electrical Characteristics: -55°C to +125°C T , 28 VDC Vin, 100% load, unless otherwise specified.
C
TRIPLE OUTPUT MODEL – SMRT28512T
5 (MAIꢀ)
TYP
±12 (AUXILIARIES)
unItS
parameter
COnDItIOnS
MIꢀ
4.90
MAX
5.10
MIꢀ
TYP
MAX
Output VOltage
MAIꢀ AꢀD POS. AUX
ꢀEꢁ. AUX.
5.00
11.76 12.00 12.24
VDC
-11.58 -12.00 -12.42
2, 3
1
Output Current
—
—
—
—
3.0
—
0
±0.63
—
1
A
TOTAL
TOTAL
—
1.25
2, 3
1
Output pOwer
0
—
—
15
—
0
±7.5
—
12
W
V
= 19 tO 56 VDC
—
—
15
Iꢀ
Output rIpple
10 khz - 20 mhz
MAIꢀ AꢀD POS. AUX
ꢀEꢁ. AUX.
—
—
—
—
200
30
—
—
—
—
—
—
—
—
5
150
30
mV p-p
lIne regulatIOn
mV
V
= 19, 50 VDC
20
5
70
Iꢀ
lOaD regulatIOn
MAIꢀ AꢀD POS. AUX
—
—
—
—
5
40
100
—
40
V
= 19, 50 VDC
—
—
—
—
10
—
120
300
400
Iꢀ
mV
1
ꢀEꢁ. AUX.
1
V
= 19, 50 VDC
—
Iꢀ
1
tOtal regulatIOn
all COnDItIOnS OF
lIne, lOaD, agIng,
temp anD raDIatIOn
V
4.7
—
5.3
±10.9
—
±13.1
VDC
%
OUT
1, 4, 5
CrOSS regulatIOn
EFFECT Oꢀ
—
—
—
—
—
—
—
2.5
—
t
= 25°C
ꢀEꢁATIVE AUXILIARY
C
Input VOltage
COntInuOuS
19
28
56
VDC
V
tranSIent 100 ms
nO lOaD
0
—
—
—
80
110
50
—
—
—
—
—
—
—
—
—
Input Current
—
—
mA
InhIbIteD
6
Input rIpple Current
10 kHz - 10 MHz
—
68
—
—
—
—
10
—
—
—
—
—
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
mA p-p
%
7
eFFICIenCy
8, 9
lOaD Fault
POWERꢀDISSIPATION
25
—
W
1
reCOVery
25
25
ms
9, 10, 11
Step lOaD reSpOnSe
tranSIent
reCOVery
±450
3
±450
3
mV pk
ms
1, 8, 9
Step lIne reSpOnSe
22 - 35 - 22 V
In
—
—
—
—
—
—
—
0
±500
4
—
—
—
—
—
—
—
0
±750
4
mV pk
ms
tranSIent
reCOVery
11
Start-up
Delay
nO lOaD anD Full
25
25
ms
OVerShOOt
50
120
mV pk
1
CapaCItIVe lOaD
unCOnDItIOnally
Stable, Start-up
Delay InCreaSeD
t
= 25°C
—
—
5000
—
—
1000
µF
C
ꢀotes: See page 15
www.interpoint.com
Page 13 of 19
SMRT28 Rev E - 20100216
CRANE [ Crane Aerospace & Electronics. ]
