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SMHF283R3S_15 Datasheet, PDF (5/15 Pages) Interpoint Corporation Company – SMHF Single and Dual DC-DC Converters
Crane Aerospace & Electronics Power Solutions
SMHF Single and Dual DC-DC Converters
16-45 Volt Input – 15 Watt
Table 5: Operating Conditions - All Models, 25°C case, 28 Vin, unless otherwise specified
SMHF Series
PARAMETER
LEAD SOLDERING TEMPERATURE 1
STORAGE TEMPERATURE 1
CASE OPERATING
TEMPERATURE
DERATING OUTPUT POWER/CURRENT 1
ESD RATING 1
MIL-PRF-38534, 3.9.5.8.2
ISOLATION: input to output or any
pin to case except case pin
UNDERVOLTAGE LOCKOUT 1
INPUT TO OUTPUT CAPACITANCE 1
CURRENT LIMIT 1, 2
AUDIO REJECTION 1
CONVERSION FREQUENCY
SYNCHRONIZATION
INHIBIT ACTIVE LOW (OUTPUT DISABLED)
Do not apply a voltage to the inhibit pin
INHIBIT ACTIVE HIGH (OUTPUT ENABLED)
Do not apply a voltage to the inhibit pin
All Models
CONDITIONS
MIN TYP MAX UNITS
10 seconds max.
—
—
300
°C
-65
— +150
°C
FULL POWER
ABSOLUTE 1
-55
— +125
°C
-55
— +135
LINEARLY
From 100% at 125°C to 0% at 135°C
MIL-STD-883 Method 3015
1000-1999
V
Class 1C
@ 500 VDC at 25°C
100
—
— Megohms
VIN
% OF FULL LOAD
FREE RUN
-55°C TO +125°C
INPUT FREQUENCY
DUTY CYCLE 1
ACTIVE LOW
ACTIVE HIGH 1
REFERENCED TO
IF NOT USED
inhibit pin pulled low
INHIBIT PIN SOURCE
CURRENT 1
REFERENCED TO
INHIBIT PIN CONDITION
OPEN INHIBIT PIN
VOLTAGE 1
—
14
—
V
—
60
—
pF
—
140
—
%
—
50
—
dB
480 550 620
kHz
500
—
600
kHz
40
—
60
%
—
—
0.8
V
4.5
—
5.0
INPUT COMMON
CONNECT TO INPUT COMMON
—
—
0.8
V
—
—
5
mA
INPUT COMMON
OPEN COLLECTOR OR
UNCONNECTED
7.5
—
12
V
For mean time between failures (MTBF) contact Applications Engineering
powerapps@crane-eg.com +1 425-882-3100 option 7
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 140% (typical value) of the
maximum rated “total” current of both outputs.
www.craneae.com/interpoint
Page 5 of 15
SMHF Rev AF - 2015.10.28