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 – SMRT28507T
5 (MAIꢀ)
TYP
±7 (AUXILIARIES)
unItS
parameter
COnDItIOnS
MIꢀ
4.90
MAX
5.10
MIꢀ
6.86
-6.79
TYP
7.00
7.00
MAX
7.14
Output VOltage
MAIꢀ AꢀD POS. AUX
ꢀEꢁ. AUX.
5.00
VDC
-7.21
2, 3
1
Output Current
—
—
—
—
3.0
—
0
±1.00
—
1.2
A
TOTAL
TOTAL
—
2.0
2, 3
1
Output pOwer
0
—
—
15
—
0
±7.0
—
11.2
14
W
V
= 19 tO 56 VDC
—
—
Iꢀ
Output rIpple
10 khz - 20 mhz
MAIꢀ AꢀD POS. AUX
ꢀEꢁ. AUX.
—
—
—
—
—
—
—
—
—
—
5
230
70
—
—
—
—
—
—
—
—
—
—
5
±170
100
150
250
250
350
350
mV p-p
lIne regulatIOn
mV
V
= 19, 50 VDC
—
Iꢀ
lOaD regulatIOn
MAIꢀ AꢀD POS. AUX
100
150
—
V
= 19, 50 VDC
—
—
—
—
—
—
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
±6.53
—
±7.47
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
—
71
—
—
—
—
10
—
—
—
—
—
50
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
mA p-p
%
7
eFFICIenCy
8, 9
lOaD Fault
POWERꢀDISSIPATION
22
—
W
1
reCOVery
25
25
ms
9, 10, 11
Step lOaD reSpOnSe
tranSIent
reCOVery
±300
2
±400
2
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
20
20
ms
OVerShOOt
100
150
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 12 of 19
SMRT28 Rev E - 20100216
CRANE [ Crane Aerospace & Electronics. ]
