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參數(shù)資料
| 型號： | 5962R9316202KXC |
| 廠商： | CRANE ELECTRONICS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 60 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | HERMETIC SEALED PACKAGE-12 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 745K |
| 代理商： | 5962R9316202KXC |
description
The Interpoint SMFL Series 28-volt DC/DC converters
are rated up to 65 watts output power over a -55° to +125°C
temperature range with a 28 VDC nominal input. On dual output
models up to 70% of the rated output power can be drawn from
either the positive or negative outputs. Current sharing allows
the units to be paralleled for total power of up to 185 watts. The
welded, hermetically sealed package is only 3.0 x 1.5 x 0.40
inches, giving the series an overall power density of up to 43
watts per cubic inch.
Screening
SMFL converters, also available on SMD drawings, offer the
following screening options: Space Prototype (O), Class H, or
Class K. Radiation tolerant to Radiation Hardness Assurance
(RHA) levels of “-” (O), “P,” or “R,” per MIL-PRF-38534. Interpoint
model numbers use an “O” in the RHA designator position to
indicate the “-” (dash) Radiation Hardness Assurance level of
MIL-PRF-38534, which is defined as “no RHA”. See Screening
Tables 1 and 2
DeSign FeatureS
SMFL Series converters are switching regulators that use a
quasi-square wave, single ended forward converter design with a
constant switching frequency of 600 kHz typical.
Isolation between input and output circuits is provided with a
transformer in the forward path and a wide bandwidth magnetic
coupling in the feedback control loop. The SMFL uses a unique
dual loop feedback technique that controls output current with
an inner feedback loop and an 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, but without the cost and complexity.
The constant frequency, pulse-width modulated converters use
a quasi-square wave single-ended forward design. Tight load
regulation is achieved through a wide-bandwidth magnetic feed-
back circuit. The output voltage on single SMFL models can
be trimmed to a specific output voltage by adding an external
resistor (see Figure 1 for resistor values).
inhibit
The SMFL Series converters have two inhibit terminals (INH1
and INH2) that can be used to disable power conversion,
resulting in a very low quiescent input current and no generation
of switching noise. An active low (<0.8 volts) is required to inhibit
the converter between INH1 (pin 4) and Input Common (pin
2). An active low (<0.5 volts) is required to inhibit the converter
between INH2 (pin 12) and Output Common (pin 8).
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. The nominal
free-run switching frequency is 600 kHz.
current Share anD Parallel OPeratiOn
Multiple SMFL converters may be used in parallel to drive a
common load (see Figure 2). Only single output models with
SENSE and SNS RTN can be used in the share mode. In this
mode of operation the load current is shared by two or three
Features
parallel operation with current share, up to 3 units (up
to 185 watts)
Operating temperature -55° to +125°C
Qualified to MIL-PRF-38534 Class H and K
Radiation hardness assurance (RHA) to level R 100 kRad(Si)
Input voltage range 16 to 40 VDC
Transient protection 80 V for 50 ms
Fully isolated, magnetic feedback
Fixed high frequency switching
Remote sense and output trim on single output models
Inhibit function
Synchronization input and output
Indefinite short circuit protection
High power density with up to 85% efficiency
MODELS
VDc OutPut
SINgLE
3.3
5
12
15
DuAL
±5
±12
±15
The information in this document is a derivative of documents cleared
by the Department of Defense (DoD) Office of Security Review (OSR) for public release.
OSR case numbers 09-S-0996 dated March 13, 2009 and 09-S-1960 dated June 22, 2009.
Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
Page 1 of 14
28 VoLt input – 65 Watt
SMFL Rev L - 2011.05.04
Crane Aerospace & Electronics
Crane Electronics, Inc.
Power Solutions – Interpoint
POBox97005Redmond,WA98073-9705
425.882.3100power@crane-eg.com
www.craneae.com/interpoint
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