Datasheet > SMFLHP2815S/OO

SMFLHP2815S/OO

更新时间： 2024-11-18 19:55:15

品牌	Logo	应用领域
CRANE		/
页数	文件大小	规格书
15页	273K
描述
Analog Circuit,

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SMFLHP2815S/OO 数据手册

Crane Aerospace & Electronics Power Solutions

SMFLHP Single and Dual DC-DC Converters

28 Volt input – 100 Watt

Features

pꢀꢁꢀllꢂl ꢃꢄꢂꢁꢀꢅꢆꢃꢇ wꢆꢅh ꢈꢉꢁꢁꢂꢇꢅ ꢊhꢀꢁꢂ,

ꢉꢄ ꢅꢃ 3 ꢉꢇꢆꢅꢊ (ꢉꢄ ꢅꢃ 285 wꢀꢅꢅꢊ)

•ꢀ 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

MODELS

•ꢀ Synchronization input and output

VDC Output

•ꢀ Indefinite short circuit protection

SINGLE

DUAL

±5

•ꢀ High power density with up to 87% efficiency

3.3

±12

±15

description

DeSign FeatureS

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.

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.

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 “Table 9: Element Evaluation” on page 14

and “Table 10: Environmental Screening and RHA Levels” on

page 15 for more information.

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 2: Sense Connections and Trim Table – Single

Output Models” on page 3 for voltage changes with different

resistor values.

Crane Aerospace & Electronics

Page 1 of 15

Power Solutions – Interpoint Products

10301 Willows Rd. NE, Redmond, WA 98052

+1 425.882.3100 • power@crane-eg.com

www.craneae.com/interpoint

Rev AA - 2013.08.31

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 12-S-2048 dated MAY 29, 2012.

12 3 4 5 6 7...15

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