MFK281R8S Datasheet, PDF (5/23 Pages) Interpoint Corporation Company – MFK S ingle and D ual D C-DC Converters 16 to 50 vol ts i npu t – 25 Watt

Crane Aerospace & Electronics Power Solutions
MFK Single and Dual DC-DC Converters
16₂t₈o _V50_ov_lto_il_nt_ps _uin_tp_–ut₂₅– 2_W5 W_ata_ttt
Table 5: Operating Conditions, All Models, 25°C case, 28 Vin, 100% load, unless otherwise specified.
MFK 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
CURRENT LIMIT ³
AUDIO REJECTION ¹
CONVERSION FREQUENCY
SYNCHRONIZATION
INHIBIT ACTIVE LOW (OUTPUT DISABLED)
Do not apply a voltage to the inhibit pin ⁵
INHIBIT ACTIVE HIGH (OUTPUT ENABLED)
Do not apply a voltage to the inhibit pin ⁵
CONDITIONS
10 seconds max.
FULL POWER
ABSOLUTE ¹
LINEARLY
MIL-STD-883, Method 3015
Class 2
500 VDC at 25°C
% 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 ⁴
INHIBIT PIN SOURCE
CURRENT ¹
REFERENCED TO
INHIBIT PIN CONDITION
OPEN PIN VOLTAGE ¹
All Models
MIN TYP MAX
UNITS
—
—
300
°C
-65
— +150
°C
-55
— +125
°C
-55
— +135
From 100% at 125°C to 0% at 135°C
2000 - 3999 ²
V
100
—
— Megohms
—
15
—
V
—
115
—
%
—
50
—
dB
430
—
570
kHz
450
—
550
kHz
40
—
60
%
—
—
0.8
V
4.5
—
5.0
INPUT COMMON
LEAVE UNCONNECTED
—
—
0.8
V
—
—
4
mA
INPUT COMMON
OPEN COLLECTOR OR
UNCONNECTED
8.5
—
12
V
For mean time between failures (MTBF) contact Applications Engineering
[e-mail] [phone] option 7
Notes
1. Guaranteed by characterization test and/or analysis. Not a production test.
2. Passes 2000 volts.
3. Dual outputs: The over-current limit will trigger when the sum of the currents
from both outputs reaches 115% (typical value) of the maximum rated “total”
current of both outputs.
4. Tested with inhibit pin pulled to ground.
5. An external inhibit interface should be used to pull the inhibit low or leave it
floating. The inhibit pin can be left unconnected if not used.
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Page 5 of 23
MFK Rev AJ - 2016.04.25