Datasheet > MHF+28512TF

MHF+28512TF

更新时间： 2024-01-23 21:22:44

品牌	Logo	应用领域
CRANE		转换器
页数	文件大小	规格书
20页	432K
描述
MHF+ Single, Dual and Triple DC/DC Converters

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MHF+28512TF 技术参数

生命周期：	Contact Manufacturer	包装说明：	DIP, DIP20,.8TB
Reach Compliance Code：	compliant	ECCN代码：	EAR99
风险等级：	5.54	其他特性：	PLUS OR MINUS12 V ADDITIONAL OUTPUTS AVAILABLE
模拟集成电路 - 其他类型：	DC-DC REGULATED POWER SUPPLY MODULE	最大输入电压：	48 V
最小输入电压：	16 V	标称输入电压：	28 V
JESD-30 代码：	R-XDMA-P9	JESD-609代码：	e4
功能数量：	1	输出次数：	3
端子数量：	9	最高工作温度：	125 °C
最低工作温度：	-55 °C	最大输出电流：	2.12 A
最大输出电压：	5.15 V	最小输出电压：	4.85 V
标称输出电压：	5 V	封装主体材料：	UNSPECIFIED
封装代码：	DIP	封装等效代码：	DIP20,.8TB
封装形状：	RECTANGULAR	封装形式：	MICROELECTRONIC ASSEMBLY
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：	PIN/PEG
端子节距：	2.54 mm	端子位置：	DUAL
最大总功率输出：	7.5 W	微调/可调输出：	NO
Base Number Matches：	1

MHF+28512TF 数据手册

Crane Aerospace & Electronics Power Solutions

MHF+ Single, Dual and Triple DC/DC Converters

28 VOLT INPUT – 15 WATT

FEATURES

• –55° to +125°C operation

• 16 to 40 VDC input (16 to 48 VDC triple)

• Fully isolated

• Optocoupler feedback

• Fixed frequency 550 kHz typical

- 450 kHz triple models

• Topology

- Single and dual: Single Ended Forward

- Triple: Current Mode Flyback

• Transient protection

MODELS

- Single and dual: 50 V/50 ms

- Triple: 80 V/120 ms

VDC OUTPUT

SINGLE

3.3

DUAL

TRIPLE

+5 & 12

+5 & 15

• Inhibit and sync functions

• Indefinite short circuit protection

• Undervoltage lockout

5.2

• Up to 84% efficiency, 28 W/in

Up to 76% efficiency triple models

MHF+ SERIES™ SINGLE & DUAL

DC/DC CONVERTERS

The MHF+ Single and Dual Series™ of high frequency DC/DC

converters offers a wide input voltage range of 16 to 40 volts and up

to 15 watts of output power. The units are capable of withstanding

short term transients up to 50 volts. The package is a hermetically

sealed, welded metal case. Flanged and non-flanged models are

available.

HIGHER POWER DENSITY

The MHF+ Series offers a new standard of performance for small

size and high power density. At just 0.33 inch high and a total foot-

print of 1.7 in this low profile package offers a total power density

of up to 28 watts per cubic inch.

LOW NOISE, HIGH AUDIO REJECTION

CONVERTER DESIGN

The MHF+ converters’ 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 1.3% with a 150 msec recovery time.

Input ripple current is typically 35 mA p-p with output ripple voltage

typically 30 mV p-p .

The MHF+ converters are switching regulators that use a quasi-

square wave, single-ended forward converter design with a constant

switching frequency of 550 kHz. Isolation between input and output

circuits is provided with a transformer in the forward path and a

temperature compensated optical link in the feedback control loop.

For the MHF+ dual output models, good cross regulation is main-

tained by tightly coupled output magnetics. Up to 90% of the total

output power (80% on 2805D) is available from either output,

providing the opposite output is simultaneously carrying 10% of the

total output power (20% on 2805D models). Predictable current limit

is accomplished by directly monitoring the output load current and

providing a constant current output above the overload point.

INHIBIT FUNCTION

MHF+ converters provide an inhibit terminal that can be used to

disable internal switching, resulting in no output and very low quies-

cent input current. The converter is inhibited when a TTL compatible

low (≤0.8 – output disabled) is applied to the inhibit pin. 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. The open circuit output voltage associated with the inhibit pin

is 8.5 to 12 V. In the inhibit mode, a maximum of 4 mA must be sunk

from the inhibit pin.

Crane Aerospace & Electronics

Page 1 of 20

Rev K - 20060613

Electronics Group (Interpoint Brand)

PO Box 97005 • Redmond WA 98073-9705

425.882.3100 • electronics@craneae.com

www.craneae.com

12 3 4 5 6 7...20

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