Notes

1. Guaranteed by design, not tested.

2. Up to 70% of the total output power is available from either output providing the

opposite output is simultaneously carrying 30% of the total power.

3. Effect on negative Vout from 50%/50% loads to 70%/30% or

30%/70% loads.

4. Effect on negative Vout from 50%/50% loads to 50% then 10% load on negative

Vout.

5. Unit will shut down above approximately 45V but will be undamaged and will

restart when voltage drops into normal range.

6. Recovery time is measured from application of the transient to point at which Vout

is within 1% of final value.

7. Transition time > 10 µS.

8. Tested on release from inhibit.

9. Shall not compromise DC performance.

Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, RHA level O, unless otherwise specified.

DUAL OUTPUT MODELS

SMFL2805D

SMFL2812D

SMFL2815D

unitS

Parameter

cOnDitiOnS

MIN TYP MAx MIN TYP MAx MIN TYP MAx

OutPut VOltage

tc = 25°c

4.95 5.00 5.05

4.92 5.00 5.08

11.88 12.00 12.12

11.82 12.00 12.18

14.85 15.00 15.15

14.77 15.00 15.23

VDc

each OutPut 0

—

7

0

—

10

0

—

3.5

0

—

5

0

—

3.03

0

—

4.33

a

tOtal OutPut

OutPut POwer

0

—

50 0

—

60 0

—

65

w

OutPut riPPle

—

50

100 —

50

120 —

50

150

mV p-p

line regulatiOn

—

0

50

—

25

100

—

0

50

—

25

100

—

0

50

—

25

100

mV

lOaD regulatiOn

nO lOaD tO Full

—

0

50

—

25

100

—

10

50

—

50

120

—

10

50

—

150

150

mV

crOSS regulatiOn

tc = 25°c

See nOte

3

—

5

8

—

3

6

—

2

4

—

2

4

—

2

4

—

2

4

%

See nOte

4

inPut VOltage

cOntinuOuS

16

28

40

—

—

50

16

28

40

—

—

50

16

28

40

—

—

50

VDc

V

inPut current

nO lOaD

—

50

120

—

9

14

—

35

70

—

50

100

—

9

14

—

35

70

—

50

100

—

9

14

—

35

70

mA

inhibiteD–inh1

inhibiteD–inh2

inPut riPPle current

—

30

50 —

30

50 —

30

80

mA p-p

eFFiciency

tc = 25°c

balanceD lOaD

75

78

— 81

84

— 82

85

—

%

lOaD Fault

tc = 25°c

ShOrt circuit

POwer DiSSiPatiOn

—

12.5

16

—

1.5

4.0

—

10

14

—

1.5

4.0

—

10

14

—

1.5

4.0

w

ms

SteP lOaD reSPOnSe

50% - 100% - 50% tranSient

—

250

350

—

1.5

3.0

—

450

600

—

1.5

3.0

—

500

600

—

1.5

3.0

mV pk

mS

—

250

300

—

200

300

—

250

400

—

200

300

—

250

400

—

200

300

mV pk

µs

recOVery

Delay

—

3.5

6 —

3.5

6 —

3.5

6

ms

Crane Aerospace & Electronics Power Solutions

www.craneae.com

Page 7 of 13

Rev H - 20061102

sMFL single and dual dc/dc converters

28 VoLt input – 65 Watt