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MKW3046中文资料

Dual Output

Single Output

Block Diagram

Minmax's MKW3000 series, comprising 18 different models, has been conceived as an application specific range of DC/DC converters,specially addressing data communication equipments, mobile battery driven equipments, distributed power systems, telecommunication equipments, mixed analog/digital subsystems, process/machine control equipments, computer peripheral systems and industrial robot systems.

Packing up to 20W of power into a 2x1x0.4 inch package, with efficiency as high as 89%, the MKW3000 has wide input ranges of 9-18VDC, 18-36VDC and 36-75VDC and is available in output voltages of 3.3V, 5V, 12V, 15V, {12V and {15VDC.

Other feathers include continuous short circuit protection, overvoltage protection, remote on/off, six-sided shielded case, and EN55022 Class A conducted noise compliance minimize design-in time, cost and eliminate the need for external filtering.

Over Voltage Protection

y Soft Start

y Remote On/Off Control y Six-Sided Shielding y Complies with EN55022 Class A y CSA1950 Safety Approval

y 2:1 Wide Input Range y MTBF > 800,000 Hours y 1500VDC Isolation y Efficiency up to 89%Key Features

20W, Wide Input Range, Single & Dual Output DC/DC Converters

MKW3000 Series

REV:0 2005/04

MINMAX

{18

471

{40{670{15

MKW3047

89{15469{50{835{12MKW3046891847180134015MKW30448915469

100167012MKW3043856.849024040005MKW3042823.920

33524040003.348( 36 ~ 75 )

MKW304189{18941{40{670{15MKW303789{15938{50{835{12MKW3036891894180134015MKW30348915938

100167012MKW3033856.898024040005MKW3032823.930

67124040003.324( 18 ~ 36 )

MKW303188{181903{40{670{15MKW302788{151898{50{835{12MKW30268818190380134015MKW302488151898

100167012MKW3023846.8198424040005MKW3022813.950

135824040003.312( 9 ~ 18 )

MKW3021% (Typ.)VDC mA (Typ.)

mA (Typ.)mA (Typ.)mA mA VDC VDC

@Max. Load @No Load @Max. Load Min.Max.Efficiency

Over Voltage Protection Reflected Ripple Current Input Current

Output Current

Output Voltage

Input Voltage

Model Number

Model Selection Guide

EN55022 Class A

Conducted EMI

Six-Sided Shielded, Metal Case

RFI

Free-Air Convection

Cooling %

---Humidity ]+125-50Storage Temperature ]+105-40Case

Operating Temperature ]+50-40Ambient Operating Temperature Unit Max.Min.Conditions Parameter

Environmental Specifications

Exceeding the absolute maximum ratings of the unit could cause damage.These are not continuous operating ratings.

4,500

---Internal Power Dissipation

]260---Lead Temperature (1.5mm from case for 10 Sec.)VDC 100-0.748VDC Input Models

VDC 50-0.724VDC Input Models

VDC 25-0.712VDC Input Models

Input Surge Voltage

( 1000 mS )

Unit Max.Min.Parameter

Notes :

1. Specifications typical at Ta=+25], resistive load,nominal input voltage, rated output current unless otherwise noted.

2. Transient recovery time is measured to within 1%error band for a step change in output load of 75%to 100%.

3. Ripple & Noise measurement bandwidth is 0-20MHz.

4. These power converters require a minimum output loading to maintain specified regulation.

5. Operation under no-load conditions will not damage these modules; however, they may not meet all specifications listed.

6. All DC/DC converters should be externally fused at the front end for protection.

7. Other input and output voltage may be available,please contact factory.

8. Specifications subject to change without notice.

9. To order the converter without Remote On/Off function, please add a suffix -N (e.g.MKW3021-N).

Absolute Maximum Ratings

MKW3000 Series

MINMAX REV:0 2005/04

Pi Filter

Input Filter

mW 3500

------Short Circuit Input Power A 2------All Models

Reverse Polarity Input Current 34333248V Input Models

1716.51624V Input Models 8.58.38.112V Input Models Under Voltage Shutdown

36353448V Input Models

1817.51724V Input Models VDC 98.88.612V Input Models Start Voltage

Unit

Max.Typ.Min.Model Parameter

Input Specifications

Continuous

Output Short Circuit

%/]

{0.02

{0.01

---Temperature Coefficient %{4{2---Transient Response Deviation uS 300150---25% Load Step Change Transient Recovery Time %160---110Over Power Protection mV rms 10------Ripple & Noise (20MHz)mV P-P 100------Over Line, Load & Temp.Ripple & Noise (20MHz)mV P-P 8055---Ripple & Noise (20MHz)%{0.5{0.1---Io=10% to 100%Load Regulation %{0.3{0.1---Vin=Min. to Max.Line Regulation %{2.0{0.5---Dual Output, Balanced Loads

Output Voltage Balance %{1.0{0.5---Output Voltage Accuracy Unit Max.Typ.Min.Conditions

Parameter

Output Specifications

K Hours

------800

MIL-HDBK-217F @ 25], Ground Benign

MTBF

KHz 360330290Switching Frequency pF 15001200---100KHz,1V

Isolation Capacitance M[------1000500VDC Isolation Resistance VDC ------1650Flash Tested for 1 Second

Isolation Voltage Test VDC ------150060 Seconds

Isolation Voltage Rated Unit Max.Typ.Min.Conditions Parameter

General Specifications

Referenced to Negative Input

Control Common

-100

------Vin-RC = 0V Control Input Current ( off )uA 5------Vin-RC = 5.0V Control Input Current ( on )mA 52---Standby Input Current VDC 1---0Supply Off

2.5 to 100VDC or Open Circuit

Supply On Unit Max.Typ.Min.Conditions

Parameter

Remote On/Off Control

MKW3000 Series

REV:0 2005/04

MINMAX

# For each output

270

680

6800

Maximum Capacitive Load Unit {15V #{12V #15V 12V 5V 3.3V Models by Vout

Capacitive Load

1000mA Slow - Blow Type

2000mA Slow - Blow Type

4000mA Slow - Blow Type

48V Input Models 24V Input Models 12V Input Models Input Fuse Selection Guide

Input Voltage Transient Rating

MKW3000 Series

MINMAX REV:0 2005/04

MKW3000 Series

REV:0 2005/04

MINMAX

Test Configurations

Input Reflected-Ripple Current Test Setup

Input reflected-ripple current is measured with a inductor Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 KHz) to simulate source impedance.

Capacitor Cin, offsets possible battery impedance .Current ripple is measured at the input terminals of the module, measurement bandwidth is 0-500 KHz.

Peak-to-Peak Output Noise Measurement Test

Use a Cout 1.0uF ceramic capacitor.

Scope measurement should be made by using a BNC socket, measurement bandwidth is 0-20 MHz. Position the load between 50 mm and 75 mm from the DC/DC Converter.

Remote On/Off

Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin, and off during a logic low.

To turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the -Vin terminal.

The switch can be an open collector or equivalent.A logic low is -0V to 1.0V.A logic high is 2.5V to 100V.

The maximum sink current at on/off terminal during a logic low is -100 uA.

The maximum allowable leakage current of the switch at on/off terminal (2.5 to 100V) is 5uA.

Overcurrent Protection

To provide protection in a fault (output overload) condition,the unit is equipped with internal current limiting circuitry and can endure current limiting for an unlimited duration. At the point of current-limit inception, the unit shifts from voltage control to current control. The unit operates normally once the output current is brought back into its specified range.

Overvoltage Protection

The output overvoltage clamp consists of control circuitry,which is independent of the primary regulation loop, that monitors the voltage on the output terminals.

The control loop of the clamp has a higher voltage set point than the primary loop.

This provides a redundant voltage control that reduces the risk of output overvoltage.

The OVP level can be found in the output data .

Input Source Impedance

The power module should be connected to a low ac-impedance input source. Highly inductive source impedances can affect the stability of the power module.

In applications where power is supplied over long lines and output loading is high, it may be necessary to use a capacitor at the input to ensure startup.

Capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use a good quality low Equivalent Series Resistance (ESR < 1.0[ at 100KHz) capacitor of a 22uF for the 12V input devices and a 6.8uF for the 24V and 48V devices.

MKW3000 Series

MINMAX REV:0 2005/04

Output Ripple Reduction

A good quality low ESR capacitor placed as close as practicable across the load will give the best ripple and noise performance.

To reduce output ripple, it is recommended to use 4.7uF capacitors at the output.

Maximum Capacitive Load

The MKW3000 series has limitation of maximum connected capacitance at the output.

The power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time.

For optimum performance we recommend 270uF

maximum capacitive load for dual outputs, 680uF capacitive load for 12V & 15V outputs and 6800uF capacitive load for 3.3V & 5V outputs.

The maximum capacitance can be found in the data sheet.

Thermal Considerations

Many conditions affect the thermal performance of the power module, such as orientation, airflow over the module and board spacing. To avoid exceeding the maximum temperature rating of the components inside the power module, the case temperature must be kept below 105°C.The derating curves are determined from measurements obtained in an experimental apparatus.

MKW3000 Series

REV:0 2005/04

MINMAX

The MKW3000 converter is encapsulated in a low thermal resistance molding compound that has excellent resistance/electrical characteristics over a wide temperature range or in high humidity environments.

The encapsulant and unit case are both rated to UL 94V-0 flammability specifications.Leads are tin plated for improved solderability.

UL94V-0

:Flammability

Remote On/Off

30g :Weight -Vout -Vout 5Common No Pin 4Metal With Non-Conductive Baseplate :Case Material +Vout +Vout 3-Vin -Vin 2 2.0*1.0*0.4 inches

+Vin +Vin 150.8*25.4*10.2 mm :

Case Size Dual Output

Single Output

Pin Physical Characteristics

Pin Connections

{0.002

{0.05

X.XXX{0.005X.XX{0.13Connecting Pin Patterns

Mechanical Dimensions

MKW3000 Series

MINMAX REV:0 2005/04