Datasheet > MHF2812D/ES

MHF2812D/ES

更新时间： 2024-09-24 11:01:35

品牌	Logo	应用领域
CRANE		转换器输出元件输入元件
页数	文件大小	规格书
6页	88K
描述
DC/DC CONVERTERS 28 VOLT INPUT

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技术参数
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MHF2812D/ES 技术参数

生命周期：	Contact Manufacturer	包装说明：	DIP, DIP8/10,.8,300/200
Reach Compliance Code：	compliant	ECCN代码：	EAR99
风险等级：	5.54	Is Samacsys：	N
其他特性：	ADDITIONAL -12V OUTPUT AVAILABLE	模拟集成电路 - 其他类型：	DC-DC REGULATED POWER SUPPLY MODULE
效率（主输出）：	81%	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-XDMA-T8	JESD-609代码：	e4
最大电网调整率：	0.208%	最大负载调整率：	0.416%
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 A
最大输出电压：	12.12 V	最小输出电压：	11.88 V
标称输出电压：	12 V	封装主体材料：	UNSPECIFIED
封装代码：	DIP	封装等效代码：	DIP8/10,.8,300/200
封装形状：	RECTANGULAR	封装形式：	MICROELECTRONIC ASSEMBLY
保护：	CURRENT	认证状态：	Not Qualified
座面最大高度：	8.38 mm	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：	THROUGH-HOLE	端子节距：	5.08 mm
端子位置：	DUAL	最大总功率输出：	12 W
微调/可调输出：	NO	Base Number Matches：	1

MHF2812D/ES 数据手册

FEATURES

• –55° to +125°C operation

MHF SERIES

12 WATT

DC/DC CONVERTERS

• 16 to 40 VDC input

(19 to 40 VDC for 15 volt outputs)

• Fully Isolated

28 VOLT

INPUT

MODELS

• Optocoupler feedback

VDC OUTPUT

• Fixed frequency 600 kHz typical

• Forward converter topology

• 50 V for up to 50 ms transient protection

• Inhibit function

SINGLE

DUAL

±12

±15

• Indefinite short circuit protection

• Up to 83% efficiency, 22 W/in

Size (max.): 1.460 x 1.130 x 0.330 inches (37.08 x 28.70 x 8.38 mm)

See Section B8, case E1 for dimensions.

Weight:

Screening: Standard or ES.

See section C2 for screening options.

21 grams typical.

DESCRIPTION

elements on both the input and output to help reduce the need for

external components. For information about filtering to meet MIL-

STD-461’s CE03 test, contact your Interpoint representative.

The MHF Series™ of DC/DC converters offer up to 12 watts of

power from single or dual outputs in a single package over a the full

military temperature range. Thick film hybrid manufacturing tech-

nology produces high levels of miniaturization, giving the MHF

Series converters a low profile (0.330 inch), small board area (1.65

WIDE VOLTAGE RANGE

square inches), and high power density (22 watt/in ).

The MHF Series is designed to provide full power operation over the

input voltage range of 16 to 40 volts. The 15 volt models provide a

19 to 40 volt range. Operation below 16 volts (or 19 volts for the 15

volt models), including operation in MIL-STD-704E emergency

power conditions, is possible with derated output power. Please

refer to the low line drop-out graphs, Figures 9 and 10.

The parts are packaged in hermetically sealed steel enclosures,

making them ideal for use in military, aerospace, and high reliability

industrial applications.

DESIGN METHODOLOGY

The MHF converters are switching regulators which use a quasi-

square wave, single ended forward converter design with a nominal

switching frequency of 600 kHz. Isolation between input and output

circuits is provided with a transformer in the forward power loop and

a temperature insensitive optical link in the feedback control loop.

Output regulation is accomplished with constant frequency pulse

width modulation. Both line and load regulation are typically within

10 mV.

MILITARY TEMPERATURE RANGE

The MHF Series provides full power operation at case temperatures

from –55°C up to +125°C. All 12 and 15 volt models in both single

and dual output configurations provide full power operation at

+125°C with derated power to 135°C. The +5 volt model provides

full power at 110°C derated to 0% at 130°C. Depending on operating

levels, air flow, and ambient temperature; heat sinking may be

required.

On dual output models, the positive output is independently regu-

lated and the negative output is cross-regulated. Figures 7 and 8

illustrate what effects load changes have on the negative output.

INHIBIT FEATURE

An inhibit terminal is provided that can be used to disable internal

switching, resulting in a very low quiescent input current. An open

collector TTL compatible low (≤0.8V) is required to control the inhibit

function. This level may be supplied by an open collector gate since

the inhibit pin is provided with an internal pull-up resistor.

Indefinite short circuit protection and overload protection are

provided by sensing output load current and restricting the output

current to approximately 125% of full load output current. Since the

output current is sensed in the secondary stage, the result is a

predictable, constant output current control with no foldback char-

acteristics. MHF converters are provided with internal filtering

B2-77

12 3 4 5 6

中文翻译

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与MHF2812D/ES相关器件

型号	品牌	获取价格	描述	数据表
MHF2812DF/883	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
MHF2812S	CRANE	获取价格	Only 0.33 inches (8.38 mm) high in a hermetically sealed case
MHF2812S	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
MHF2812S/ES	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
MHF2812SF/883	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
MHF2815D	CRANE	获取价格	Only 0.33 inches (8.38 mm) high in a hermetically sealed case
MHF2815D	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
MHF2815D/ES	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
MHF2815DF/883	CRANE	获取价格	DC/DC CONVERTERS 28 VOLT INPUT
MHF2815S	CRANE	获取价格	Only 0.33 inches (8.38 mm) high in a hermetically sealed case

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