MFL283R3S

更新时间： 2024-10-01 11:02:27

品牌	Logo	应用领域
CRANE		模拟IC 信号电路局域网
页数	文件大小	规格书
13页	616K
描述
Parallel operation with current share, 16 to 40 VDC input

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MFL283R3S 技术参数

生命周期：	Contact Manufacturer	包装说明：	, FLANGE MT,1.5X3.0
Reach Compliance Code：	compliant	ECCN代码：	EAR99
风险等级：	5.55	Is Samacsys：	N
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-CDMA-F12	JESD-609代码：	e4
功能数量：	1	输出次数：	1
端子数量：	12	最高工作温度：	125 °C
最低工作温度：	-55 °C	最大输出电流：	12.12 A
最大输出电压：	3.39 V	最小输出电压：	3.21 V
标称输出电压：	3.3 V	封装主体材料：	CERAMIC, METAL-SEALED COFIRED
封装等效代码：	FLANGE MT,1.5X3.0	封装形状：	RECTANGULAR
封装形式：	MICROELECTRONIC ASSEMBLY	认证状态：	Not Qualified
子类别：	Other Analog ICs	表面贴装：	YES
技术：	HYBRID	温度等级：	MILITARY
端子面层：	GOLD	端子形式：	FLAT
端子位置：	DUAL	最大总功率输出：	40 W
微调/可调输出：	YES	Base Number Matches：	1

MFL283R3S 数据手册

Crane Aerospace & Electronics Power Solutions

MFL sꢀꢁglꢂ aꢁꢃ dual dc/dc cꢄꢁvꢂꢅꢆꢂꢅꢇ

28 VoLt inpꢈt – 65 Wꢉtt

Features

Parallel operation with current share,

up to 3 units (148 watts)

•ꢀ -55° to +125°C operation

MODELS

VDc Ou t P u t

•ꢀ 16 to 40 VDC input

•ꢀ 50 V for 120 ms transient protection

•ꢀ Fully isolated, magnetic feedback

•ꢀ Fixed high frequency switching

s i n g l e

D u a l

±5

±12

±15

3.3

•ꢀ Remote sense or output trim on

single output models

Other output voltages

available upon request,

including 2 V, 8 V and

54 V single.

•ꢀ Inhibit function

•ꢀ Sync in and Sync Out

•ꢀ Indefinite short circuit protection

•ꢀ High power density, 87% efficiency

description

in h i b i t

The MFL Series™ 28-volt DC/DC converters are rated up to 65

watts of 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 output. Current sharing allows the units to be paral-

leled for total power of up to 148 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 43 watts per cubic

inch. The converters are offered with standard screening, “ES”

screening, or fully compliant to “883” MIL-PRF-38534 Class H

screening. Standard microcircuit drawings (SMD) are available.

The MFL 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 and no generation of switching

noise. A logic low (<0.8 volts) is required to inhibit the converter

between INH1 (pin 4) and Input Common (pin 2). A logic low

(<0.5 volts) is required to inhibit the converter between INH2 (pin

12) and Output Common (pin 8). The application of intermediate

voltages to these pins (1.5 to 10.5 volts) should be avoided.

sy n c

Converters may be synced to an external clock (525 to 675 kHz)

or to one another by using the sync in or out pins. The nominal

free-run switching frequency is 600 kHz (see Application Note on

Inhibit and Synchronization).

De s i g n Fe a t u r e s

The MFL Series converters are switching regulators that use a

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

constant switching frequency of 600 kHz.

cu r r e n t a n D Pa r a l l e l OP e r a t i O n

Multiple MFL converters may be used in parallel to drive a

common load (see Figure 2). In this mode of operation the load

current is shared by two or three MFL converters. In current

sharing mode, one MFL 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). Figure 2 shows the typical setup for two or

three units in parallel. Note that synchronizing the units together

(though shown in the figure) is not required for current sharing

operation. A second slave unit may be placed in parallel with a

master and slave; this requires the TRI pin (pin 3) of the master

unit to be connected to the SNS RTN pin (pin 9).

Isolation between input and output circuits is provided with a

transformer in the forward path and a wide bandwidth magnetic

coupling in the feedback control loop. The MFL uses a unique

dual loop feedback technique that controls output current with

an inner feedback loop and an 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, but without the cost

and complexity.

The constant frequency, pulse-width modulated converters use a

quasi-square wave single-ended forward design. Tight load regu-

lation is achieved through a wide-bandwidth magnetic feedback

circuit. The output on single MFL models can be trimmed (see

Figure 1 for voltage changes with different resistor values).

When paralleled, 76% of the total combined power ratings of the

MFL converters are available at the load. Overload and short

circuit performance are not adversely affected during parallel

operation.

Crane Aerospace & Electronics

Page 1 of 13

MFL Rev E - 20101026

Electronics Group (Interpoint Brand)

POꢀBoxꢀ97005ꢀꢀ•ꢀꢀRedmondꢀWAꢀ98073-9705

425.882.3100ꢀꢀꢀ•ꢀꢀpower@crane-eg.com

www.craneae.com/interpoint

12 3 4 5 6 7...13

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与MFL283R3S相关器件

型号	品牌	获取价格	描述	数据表
MFL283R3S/883	CRANE	获取价格	MFL Single and Dual DC/DC Converters
MFL283R3S/883	CRANE	获取价格	1-OUTPUT 40W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED PACKAGE-12
MFL283R3S/ES	CRANE	获取价格	MFL Single and Dual DC/DC Converters
MFL283R3S_10	CRANE	获取价格	Parallel operation with current share, 16 to 40 VDC input
MFL283R3SV	CRANE	获取价格	DC-DC REG PWR SUPPLY MODULE
MFL283R3SV/883	CRANE	获取价格	DC-DC REG PWR SUPPLY MODULE
MFL285D	CRANE	获取价格	2-OUTPUT 50W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED MODULE-12
MFL285D/883	CRANE	获取价格	2-OUTPUT 50W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED MODULE-12
MFL285D/ES	CRANE	获取价格	2-OUTPUT 50W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED MODULE-12
MFL285S	CRANE	获取价格	1-OUTPUT 50W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED MODULE-12

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