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参数资料
| 型号： | 5962R0822301KXC |
| 厂商： | CRANE ELECTRONICS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | HERMETIC SEALED PACKAGE-12 |
| 文件页数： | 1/14页 |
| 文件大小： | 614K |
| 代理商： | 5962R0822301KXC |
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 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 285 watts. The
welded, hermetically sealed package is only 3.005 x 1.505 x
0.400 inches, giving the series an overall power density of up to
67 watts per cubic inch.
Screening
SMFLHP converters offer screening options to 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 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. The output voltage on single SMFLHP
models can be easily trimmed up by adding an external resistor.
(See Figure 1 for voltage changes with different resistor values.)
inhibit
The SMFLHP 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. An active low
(<0.8 volts) is required between INH1 (pin 4) and Input Common
(pin 2) to inhibit the converter. An active low (<0.5 volts) is
required between INH2 (pin 12) and Output Common (pin 8) to
inhibit the converter. The application of intermediate voltages to
these pins (1.5 to 10.5 volts) should be avoided.
current Sharing anD Parallel OPeratiOn
Multiple SMFLHP 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
SMFLHP converters. In current sharing mode, one SMFLHP
converter is designated as a master. The SLAVE pin (pin 11) of
the master is left unconnected and the MSTR/INH2 pin (pin 12)
of the master is connected to the SLAVE pin (pin 11) of the slave
units. The units designated as slaves have the MSTR/INH2 pin
(pin 12) connected to the SNS RTN pin (pin 9) of the master unit.
Figure 2 shows the typical setup for two or three units in parallel.
Features
Parallel operation with current share,
up to 3 units (up to 285 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 19 to 40 VDC
Transient protection 80 V for 50 ms
Fully isolated, magnetic feedback
Fixed high frequency switching
Remote sense / output trim on single output models
Inhibit function
Synchronization input and output
Indefinite short circuit protection
High power density with up to 87% 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-1007 dated March 13, 2009 and 09-S-1960 dated June 22, 2009.
Crane Aerospace & Electronics Power Solutions
smFlHp single and dual dc/dc converters
Page 1 of 14
28 Volt input – 100 Watt
Rev J - 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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