Crane Aerospace & Electronics Power Solutions
smHF sꢀꢁgꢂꢃ ꢄꢁꢅ dꢆꢄꢂ dc/dc cꢇꢁvꢃꢈꢉꢃꢈꢊ
28 Volt input – 15 Watt
ElectricalꢀCharacteristics:ꢀ25°CꢀTc,ꢀ28ꢀVDCꢀVin,ꢀ100%ꢀload,ꢀradiationꢀlevelꢀO,ꢀunlessꢀotherwiseꢀspecified.
DUALꢀOUTPUTꢀMODELS
SMHF2805D
SMHF2812D
SMHF2815D
unitS
VDc
paraMeter
cOnDitiOnS
MIꢁꢀ TYPꢀ MAX MIꢁꢀ TYPꢀ MAX MIꢁꢀ TYPꢀ MAX
4.95ꢀ 5.00ꢀ 5.05 11.88ꢀ12.00ꢀ12.12 14.85ꢀ15.00ꢀ15.15
4.92ꢀ 5.00ꢀ 5.08 11.82ꢀ12.00ꢀ12.18 14.78ꢀ15.00ꢀ15.23
Output VOltage
+ V
- V
Out
Out
2
Output current
Vin = 16 tO 40 VDc
—ꢀ ±1.2ꢀ 1.68 —ꢀ ±0.625ꢀ 0.875 —ꢀ
±0.5ꢀ
—ꢀ
0.7
15
a
2
Output pOwer
Vin = 16 tO 40 VDc
10 kHz - 2 MHz
—ꢀ
—ꢀ
—ꢀ
12 —ꢀ
—ꢀ
15 —ꢀ
w
Output ripple
60ꢀ
160 —ꢀ
70ꢀ
175 —ꢀ
70ꢀ
175
275
mVꢀp-p
mV
± V
—ꢀ 100ꢀ 240 —ꢀ 100ꢀ 275 —ꢀ
100ꢀ
tc = -55°c tO +125°c
Out
line regulatiOn
+ V
—ꢀ
—ꢀ
5ꢀ
50 —ꢀ
5ꢀ
50 —ꢀ
5ꢀ
50
Out
BalanceD lOaD
V
= 16 tO 40 VDc
in
—ꢀ
100 —ꢀ
—ꢀ
100 —ꢀ
—ꢀ
100
- V
Out
lOaD regulatiOꢁ
ꢁOꢀLOADꢀTOꢀFULL
+ V
- V
—ꢀ
—ꢀ
20ꢀ
—ꢀ
50 —ꢀ
20ꢀ
—ꢀ
50 —ꢀ
20ꢀ
—ꢀ
50
Out
mV
BalanceD lOaD
eFFect On - V
150 —ꢀ
150 —ꢀ
150
Out
3
crOSS regulatiOn
—ꢀ
6ꢀ
7.5 —ꢀ
40 16ꢀ
3ꢀ
6
—ꢀ
3ꢀ
6
%
VDc
V
Out
input VOltage
cOntinuOuS
16ꢀ
28ꢀ
28ꢀ
40 16ꢀ
50 —ꢀ
28ꢀ
40
1
nO lOaD tO Full
input current
—ꢀ
—ꢀ
50 —ꢀ
—ꢀ
—ꢀ
50
TRAꢁSIEꢁTꢀ50ꢀms
nO lOaD
inHiBiteD
—ꢀ
—ꢀ
20ꢀ
6ꢀ
50 —ꢀ
12 —ꢀ
25ꢀ
5ꢀ
50 —ꢀ
12 —ꢀ
25ꢀ
5ꢀ
50
12
mA
input ripple
current
10 kHz - 10 MHz
—ꢀ
—ꢀ
30ꢀ
60ꢀ
80 —ꢀ
40ꢀ
55ꢀ
80 —ꢀ
40ꢀ
55ꢀ
80
mAꢀp-p
120 —ꢀ
120 —ꢀ
120
tc = -55°c tO +125°c
eFFiciencY
75ꢀ
77ꢀ
—
6
76ꢀ
—ꢀ
81ꢀ
—
76ꢀ
82ꢀ
—
%
w
4
lOaD Fault
SHOrt circuit
pOwer DiSSipatiOn
—ꢀ
—ꢀ
3ꢀ
3ꢀ
6ꢀ —ꢀ
3ꢀ
6
1, 5
7.5ꢀ
30 —ꢀ
7.5ꢀ
50 —ꢀ
7.5ꢀ
50
ms
recOVerY
Step lOaD
reSpOnSe
BalanceD lOaDS
50% - 100% - 50%
tranSient
+ V
-600ꢀ 200ꢀ 600 -600ꢀ 300ꢀ 600 -600ꢀ 300ꢀ 600
-600ꢀ 150ꢀ 600 -600ꢀ 100ꢀ 600 -600ꢀ 100ꢀ 600
mVꢀpk
mVꢀpk
Out
7
6
- V
Out
5
recOVerY
—ꢀ 150ꢀ 500 —ꢀ 200ꢀ 500 —ꢀ
200ꢀ
600
µs
mVꢀpk
ms
7
Step line
reSpOnSe
16 - 40 -16 VDc tranSient
-800ꢀ 600ꢀ 800 -750ꢀ 550ꢀ 750 -750ꢀ 550ꢀ 750
1
5
—ꢀ
0.8ꢀ
1.2 —ꢀ
0.8ꢀ
1.2 —ꢀ
0.8ꢀ
1.2
recOVerY
± V
Out
Start-up
0 tO 40 V
DelaY
—ꢀ
0ꢀ
12ꢀ
30 —ꢀ
500 0ꢀ
12ꢀ
25 —ꢀ
500 0ꢀ
12ꢀ
25
ms
1, 7
100ꢀ
200ꢀ
200ꢀ
500
mVꢀpk
OVerSHOOt
capacitiVe lOaD
tc = 25°c
—ꢀ
—ꢀ
47 —ꢀ
—ꢀ
10 —ꢀ
—ꢀ
10
µF
ꢁotes
1. Gꢆꢄꢈꢄꢁꢉꢃꢃꢅ by ꢅꢃꢊꢀgꢁ, ꢁꢇꢉ ꢉꢃꢊꢉꢃꢅ.
4.ꢀIndefiniteꢀshortꢀcircuitꢀprotectionꢀnotꢀguaranteedꢀaboveꢀ125°Cꢀ(case)
2.ꢀUpꢀtoꢀ70%ꢀofꢀtheꢀtotalꢀoutputꢀpowerꢀisꢀavailableꢀfromꢀeitherꢀoutputꢀprovidingꢀtheꢀ 5.ꢀRecoveryꢀtimeꢀisꢀmeasuredꢀfromꢀapplicationꢀofꢀtheꢀtransientꢀtoꢀpointꢀatꢀ
oppositeꢀoutputꢀisꢀsimultaneouslyꢀcarryingꢀ30%ꢀofꢀtheꢀtotalꢀoutputꢀpower.ꢀꢀEachꢀ
outputꢀmustꢀcarryꢀaꢀminimumꢀofꢀ30%ꢀofꢀtheꢀtotalꢀoutputꢀ
powerꢀinꢀorderꢀtoꢀmaintainꢀregulationꢀonꢀtheꢀnegativeꢀoutput.
ꢀ whichꢀVoutꢀisꢀwithinꢀregulation.
6.ꢀResponseꢀofꢀeitherꢀoutputꢀwithꢀtheꢀoppositeꢀoutputꢀheldꢀatꢀhalfꢀofꢀtheꢀtotalꢀoutputꢀ
power.
ꢀ
3.ꢀEffectꢀonꢀ–Voutꢀforꢀtheꢀfollowingꢀconditions,ꢀpercentagesꢀareꢀofꢀtotalꢀpower:
7.ꢀStepꢀtransitionꢀtimeꢀ>10µs.ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
+Poꢀ=ꢀ50%ꢀtoꢀ10%ꢀandꢀ–Poꢀꢀ=ꢀ50%,ꢀ+Poꢀ=ꢀ50%ꢀandꢀ–Poꢀꢀ=ꢀ50%ꢀtoꢀ10%
andꢀfromꢀ+Poꢀ=ꢀ70%/–Poꢀꢀ=ꢀ30%ꢀtoꢀ+Poꢀ=ꢀ30%/–Poꢀꢀ=ꢀ70%
allꢀconditionsꢀareꢀreferencedꢀtoꢀtheꢀbalancedꢀloadsꢀcondition:ꢀ50%/50%
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