SMRT28 参数 Datasheet PDF下载

Crane Aerospace & Electronics Power Solutions

sMrt28 single, Dual and triple space Dc/Dc converters

28 VOLt Input – 35 Watt – space quaLIFIeD

Electrical Characteristics: -55°C to +125°C T

C

, 28 VDC Vin, 100% load, unless otherwise specified.

SIngLE OUTPUT MODELS

parameter

Output VOltage

Output Current

2

Output pOwer

2

Output rIpple

lIne regulatIOn

2

lOaD regulatIOn

tOtal regulatIOn

1

V

Out

Input VOltage

Input Current

Input rIpple Current

3

eFFICIenCy

lOaD Fault

4, 5

Step lOaD reSpOnSe

5, 6, 7

Step lIne reSpOnSe

1, 5, 6

POWER DISSIPATION

reCOVery

1

tranSIent

reCOVery

19 - 50 - 19 V

In

tranSIent

reCOVery

Start-up

8

Delay

nO lOaD anD Full

OVerShOOt

CapaCItIVe lOaD

1

t

C

= 25°C

unCOnDItIOnally

Stable, Start-up

Delay InCreaSeD

V

In

= 19

tO

56 VDC

10

k

h

z

- 20 mh

z

V

In

= 19, 50 VDC

V

In

= 19, 50

all COnDItIOnS OF

lIne, lOaD, agIng,

temp anD raDIatIOn

COntInuOuS

tranSIent

1

100

ms

InhIbIteD

nO lOaD

10

kHz

- 20

MHz

COnDItIOnS

SMRT283R3S

MIn

3.23

0

0

—

—

—

—

3.0

19

0

—

—

—

60

—

—

—

—

—

—

—

—

—

TYP

3.30

—

—

—

5

5

—

—

28

—

—

—

10

—

—

—

—

—

—

—

—

—

—

MAX

3.37

6.97

23

280

30

40

90

3.6

56

80

50

110

50

—

31

25

±450

3

±500

4

35

50

5000

SMRT2805S

MIn

4.90

0

0

—

—

—

—

4.7

19

0

—

—

—

66

—

—

—

—

—

—

—

—

—

TYP

5.00

—

—

—

5

5

—

—

28

—

—

—

10

—

—

—

—

—

—

—

—

—

—

MAX

5.10

6.0

30

200

30

40

70

5.3

56

80

50

110

50

—

28

25

±450

3

±500

4

25

50

5000

SMRT288R7S

MIn

8.52

0

0

—

—

—

—

8.3

19

0

—

—

—

72

—

—

—

—

—

—

—

—

—

TYP

8.70

—

—

—

5

5

—

—

28

—

—

—

10

—

—

—

—

—

—

—

—

—

—

MAX

8.87

4.0

35

200

30

80

80

9.1

56

80

50

115

50

—

25

25

±450

4

±500

4

60

95

5000

unItS

VDC

A

W

mV p-p

mV

mV

VDC

VDC

V

mA

mA p-p

%

W

ms

mV pk

ms

mV pk

ms

ms

mV pk

µF

notes

1. guaranteed by design, not tested.

2. To maintain tight regulation over the full input voltage range a minimum load of 2% of full load should be used on all outputs.

3. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-/F-CE-102. The actual value of input ripple current is much less, the

limit in the characteristic table is based on measurement resolution..

4. Maximum power dissipation when output is shorted.

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.

6. Transition time >10 µs.

7. Half load to/from full load.

8. Measured from release of inhibit or input voltage step

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Page 7 of 19

SMRT28 Rev E - 20100216