SMFLHP2812D datasheet(6/15 Pages) INTERPOINT

Part #	SMFLHP2812D

Description	SMFLHP Single and Dual DC-DC Converters

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Manufacturer	INTERPOINT [Interpoint Corporation Company]

Direct Link	http://www.interpoint.com

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6 / 15 page

table 5: Operating cOnDitiOnS, all mODelS, 25°c caSe, 28 Vin, 100% lOaD, unleSS OtherwiSe SpeciFieD.

Notes

1. Guaranteed by characterization test and/or analysis. Not a production test.

2. Dual outputs: The over-current limit will trigger when the sum of the currents from

both outputs reaches 125% (typical value) of the maximum rated “total” current of

both outputs.

3. An external inhibit interface should be used to pull the inhibits low or leave them

floating. The inhibit pins can be left unconnected if not used.

ALL MODELS

UNITS

PARAMETER

CONDITIONS

MIN

TYP

MAX

LEAD SOLDERING TEMPERATURE 1

10 SECONDS MAX.

—

300

°C

STORAGE TEMPERATURE 1

-65

—

+150

°C

CASE OPERATING

FULL POWER

-55

—

+125

°C

TEMPERATURE

ABSOLUTE 1

-55

—

+135

DERATING OUTPUT POWER/CURRENT 1

LINEARLY

From 100% at 125°C to 0% at 135°C

ESD RATING 1

MIL STD 883 METHOD 3015

>8000

V

MIL-PRF-38534, 3.9.5.8.2

CLASS 3B

ISOLATION: INPUT TO OUTPUT OR

@ 500 VDC AT 25°C

100

—

Megohms

ANY PIN TO CASE

INPUT TO OUTPUT CAPACITANCE 1

—

150

—

pF

CURRENT LIMIT 2

% OF FULL LOAD

—

125

—

%

UNDERVOLTAGE LOCKOUT 1

RISING VIN (TURN ON)

16.0

—

18.5

V

-55°C TO +125°C

FALLING VIN (TURN OFF)

13.4

—

16.7

AUDIO REJECTION 1

—

50

—

dB

CONVERSION FREQUENCY, FREE RUN

15 DUAL

525

—

675

kHz

-55°C TO +125°C

ALL OTHER MODELS

550

—

650

SYNCHRONIZATION IN

INPUT FREQUENCY

525

—

675

kHz

-55°C TO +125°C

DUTY CYCLE 1

40

—

60

%

ACTIVE LOW

—

0.8

V

ACTIVE HIGH 1

4.5

—

5.0

REFERENCED TO

INPUT COMMON

IF NOT USED

CONNECT TO INPUT COMMON

SYNCHRONIZATION OUT

REFERENCED TO

INPUT COMMON

IF NOT USED

LEAVE UNCONNECTED

inHibit 1 ACTIVE LOW (OUTPUT DISABLED)

INHIBIT PIN PULLED LOW

—

0.8

V

Do not apply a voltage to the inhibit pin. 3

INHIBIT PIN SOURCE CURRENT 1

—

10

mA

REFERENCED TO

INPUT COMMON

inHibit 1 ACTIVE HIGH (OUTPUT ENABLED)

INHIBIT PIN CONDITION

OPEN COLLECTOR OR UNCONNECTED

Do not apply a voltage to the inhibit pin. 3

OPEN INHIBIT PIN VOLTAGE 1

9

—

12

V

inHibit 2 ACTIVE LOW (OUTPUT DISABLED)

INHIBIT PIN PULLED LOW

—

0.5

V

Do not apply a voltage to the inhibit pin. 3

INHIBIT PIN SOURCE CURRENT 1

—

5

mA

REFERENCED TO

OUTPUT COMMON

inHibit 2 ACTIVE HIGH (OUTPUT ENABLED)

INHIBIT PIN CONDITION

OPEN COLLECTOR OR UNCONNECTED

Do not apply a voltage to the inhibit pin. 3

OPEN INHIBIT PIN VOLTAGE 1

—

9

V

For mean time between failures (MTBF) contact Applications Engineering

powerapps@crane-eg.com +1 425-882-3100 option 7

Crane Aerospace & Electronics Power Solutions

www.craneae.com/interpoint

Page 6 of 15

sMFLHp single and dual dc-dc converters

28 VoLt input – 100 Watt

Rev AC - 2016.02.17

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