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SMFLHP2805S Datasheet(PDF) 1 Page - Interpoint Corporation Company

No. de Pieza. SMFLHP2805S
Descripción  SMFLHP Single and Dual DC-DC Converters
Descarga  15 Pages
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Fabricante  INTERPOINT [Interpoint Corporation Company]
Página de inicio  http://www.interpoint.com
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SMFLHP2805S Datasheet(HTML) 1 Page - Interpoint Corporation Company

 
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description
The Interpoint® SMFLHP Series™ 28 volt dc-dc converters are
rated up to 100 watts output power over a -55°C to +125°C
temperature range with a 28 volt nominal input. On dual output
models, up to 70% of the rated output power can be drawn from
either the positive or negative outputs. The welded, hermetically
sealed package is only 3.005 x 1.505 x 0.400 inches.
Screening
SMFLHP converters offer screening options to space prototype
(O), Class H or K and radiation hardness assurance (RHA) levels
P - 30 krad(Si), L - 50 krad(Si) or R - 100 krad(Si). Single event
effects (SEE) LET performance to 86 MeV cm2/mg. See Table 9
on page 14 and Table 10 on page 15 for more information.
DeSign FeatureS
The SMFLHP Series converters are switching regulators that use
a quasi-square wave, single ended forward converter design with
a constant switching frequency of 600 kHz.
Isolation between input and output circuits is provided with a
transformer in the forward path and wide bandwidth magnetic
coupling in the feedback control loop. The SMFLHP Series
uses a unique dual loop feedback technique that controls output
current with an inner feedback loop and output voltage with a
cascaded voltage mode feedback loop.
The additional secondary current mode feedback loop improves
transient response in a manner similar to primary current mode
control and allows for ease of paralleling.
Tight load regulation is achieved through a wide-bandwidth
magnetic feedback circuit.
inhibit
The SMFLHP Series converters have two inhibit terminals (Inhibit
1 and Inhibit 2) that can be used to disable power conversion,
resulting in a very low quiescent input current. See Table 5 on
page 6 for specifications.
Sync
Converters may be synced to an external clock (525 to 675 kHz)
or to one another by using the sync in or out pins. See Table 5 on
page 6 for specifications.
Features
• Radiation tolerant space dc-dc converter
- Single event effects (SEE) LET performance to
86 MeV cm2/mg
- Total ionizing dose (TID) guaranteed per MIL-STD-883 method
1019, radiation hardness assurance (RHA)
P = 30 krad(Si), L = 50 krad(Si), R = 100 krad(Si)
- 50 - 300 rad(Si)/sec dose rate (Condition A)
- 10 mrad(Si)/sec dose rate (Condition D)
• Parallel up to 3 converters—maximum recommended power
is 80% of the total available power.
• Operating temperature -55°C to +125°C
• Qualified to MIL-PRF-38534 Class H and K
• Input voltage range 19 to 40 volts
• Transient protection up to 80 volts for 50 ms
- Converter will shut down at an input voltage
above approximately 45 volts
• Fully isolated, magnetic feedback
• Fixed high switching frequency
• Remote sense and output trim on single output models
• Primary and secondary inhibit function
• Synchronization input and output
• Indefinite short circuit protection
• High power density with up to 87% typical efficiency
MODELS
Output VOltage (V)
SINGLE
DUAL
3.3
±5
5
±12
12
±15
15
Crane Aerospace & Electronics Power Solutions
sMFLHp single and dual dc-dc converters
Page 1 of 15
28 VoLt input – 100 Watt
Rev AC - 2016.02.17
Crane Aerospace & Electronics
Power Solutions – Interpoint Products
10301 Willows Rd. NE, Redmond, WA 98052
+1 425-882-3100 • power@crane-eg.com
www.craneae.com/interpoint


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