Datasheet > SMHF2805D/KR

SMHF2805D/KR

更新时间： 2024-02-29 13:02:14

品牌	Logo	应用领域
CRANE		/
页数	文件大小	规格书
15页	511K
描述
SMHF Single and Dual DC-DC Converters

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中文翻译

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技术参数
数据手册

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SMHF2805D/KR 技术参数

生命周期：	Active	包装说明：	, MODULE,8LEAD,1.45
Reach Compliance Code：	compliant	风险等级：	5.61
其他特性：	ADDITIONAL -5V OUTPUT AVAILABLE	模拟集成电路 - 其他类型：	DC-DC REGULATED POWER SUPPLY MODULE
最大输入电压：	40 V	最小输入电压：	16 V
标称输入电压：	28 V	JESD-30 代码：	R-MDMA-P8
JESD-609代码：	e4	功能数量：	1
输出次数：	2	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-55 °C
最大输出电流：	1.68 A	最大输出电压：	5.05 V
最小输出电压：	4.95 V	标称输出电压：	5 V
封装主体材料：	METAL	封装等效代码：	MODULE,8LEAD,1.45
封装形状：	RECTANGULAR	封装形式：	MICROELECTRONIC ASSEMBLY
认证状态：	Not Qualified	筛选级别：	MIL-PRF-38534 Class K
子类别：	Other Analog ICs	表面贴装：	NO
技术：	HYBRID	温度等级：	MILITARY
端子面层：	GOLD	端子形式：	PIN/PEG
端子位置：	DUAL	总剂量：	100k Rad(Si) V
最大总功率输出：	12 W	微调/可调输出：	NO

SMHF2805D/KR 数据手册

Crane Aerospace & Electronics Power Solutions

sMHF sꢀꢁglꢂ ꢃꢁꢄ dꢅꢃl dc-dc cꢆꢁvꢂꢇꢈꢂꢇꢉ

16-45 Voꢊt input – 15 Watt

Features

• Radiation tolerant space dc-dc converter

- Single event effects (SEE) LET performance to

86 MeV cm /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)

• Operating temperature -55°C to +125°C

• Qualified to MIL-PRF-38534 Class H and K

• Input voltage range 16 to 45 volts

• Transient protection 50 volts for 50 ms

• Fully isolated

MODELS

OUTPUT VOLTAꢀE (V)

SINꢀLE

3.3

DUAL

±5

±12

±15

• Fixed high frequency switching

• Inhibit function

5.2

• Synchronization input

• Indefinite short circuit protection

• Undervoltage lockout

description

The SMHF converter’s feed-forward compensation system

provides excellent dynamic response and noise rejection. Audio

rejection is typically 50 dB. Typical output voltage response for

a 50% to 100% step load transient is as low as 1.8% with a 150

µs recovery time, typical. See Table 5 on page 5 for more

information.

The Interpoint SMHF Series™ of 28 volt dc-dc converters offers

a wide input voltage range of 16 to 45 volts and up to 15 watts of

output power. The units are capable of withstanding transients up

to 50 volts for up to 50 ms.

Screening

SMHF converters offer screening to 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

SMHF converters provide an inhibit terminal that can be used

to disable internal switching, resulting in no output and very

low quiescent input current. The converter is inhibited when the

inhibit pin is pulled low. The unit is enabled when the pin, which

is internally connected to a pull-up resistor, is left unconnected

or is connected to an open-collector gate. See Table 5 on page

5 for more information.

to 86 MeV cm /mg. See Table 10 on page 15 for more

information.

converter DeSign

The SMHF converters are switching regulators that use a

quasi-square wave, single-ended forward converter design with

a constant switching frequency of 550 kHz typical. Isolation

between input and output circuits is provided with a transformer

in the forward path and a temperature compensated opto-coupler

in the feedback control loop. The opto-coupler is radiation

tolerant and is especially selected for space applications.

The SMHF Series’ synchronization feature allows the user to

match the switching frequency of the converter to the frequency

of the system clock. This allows the user to adjust the nominal

550 kHz operating frequency to any frequency within the range of

500 kHz to 600 kHz by applying a compatible input of the desired

frequency to pin 5.

Dual output models maintain cross regulation with tightly

coupled output magnetics. Up to 70% of the total output power

is available from either output, providing the opposite output

is simultaneously carrying 30% of the total output power.

Predictable current limit is accomplished by directly monitoring

the output load current and providing a constant current output

above the overload point.

SMHF Series converters provide short circuit protection by

restricting the output current to approximately 140% of the

full load output current. The output current is sensed in the

secondary stage to provide highly predictable and accurate

current limiting, and to eliminate foldback characteristics.

Undervoltage lockout prevents the units from operating below

approximately 14 volts input to keep system current levels

smooth, especially during initialization or re-start operations.

Crane Aerospace & Electronics

Page 1 of 15

Power Solutions - Interpoint Products

10301 Willows Road NE, Redmond, WA 98052

+1 425-882-3100 • power@crane-eg.com

www.craneae.com/interpoint

SMHF Rev AF - 2015.10.28

12 3 4 5 6 7...15

中文翻译

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与SMHF2805D/KR相关器件

型号	品牌	获取价格	描述	数据表
SMHF2805DE/HO	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE/HR	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE/KO	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE/KR	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE/OO	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE/OR	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE1/HO	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE1/HR	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE1/KO	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
SMHF2805DE1/KR	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT

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