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MKW1046中文资料

Dual Output

Single Output

Block Diagram

MKW1000 series of DC/DC converters, comprising 24different models, is designed for a wide range of applications including 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 10W of power into a 2 x 1 x 0.4 inch package, with efficiencies as high as 83%, the MKW1000 has wide input ranges of 9-18VDC, 18-36VDC and 36-75VDC and is available in output voltages of 3.3V, 5V, 12V, 15V, 24V, {5V, {12V and {15V.Other feathers include continuous short circuit protection,six-side shielded case and EN55022 level A conducted noise

compliance minimize design-in time, cost and eliminate the need for external components.

MTBF > 700,000 Hours

y Six-Side Shielded Case y EMI Complies With EN55022 Class A y Industry Standard Pinout

y Short Circuit Protection y SMT Technology

y I/O Isolation 1500VDC y 2:1 Input Range

y High Efficiency up to 83%

Key Features

Single and Dual Outputs

10 Watts 2:1 Wide Input Range DC/DC Converters

251

{17

{333

{15

MKW1048

83251{21{416{12MKW104781257{50{1000{5MKW1046832512141624MKW1045832523467015MKW1044822534283012MKW10438026010020005MKW10427612

1021712024003.348( 36 ~ 75 )

MKW104182507{17{333{15MKW103882507{21{416{12MKW103780521{50{1000{5MKW1036835012141624MKW1035825113467015MKW1034825064283012MKW10337853410020005MKW10327625

2043412024003.324( 18 ~ 36 )

MKW1031801041{17{333{15MKW1028811027{21{416{12MKW1027781068{50{1000{5MKW10268110272141624MKW10258010473467015MKW10248010384283012MKW102377108210020005MKW10227250

3091712024003.312( 9 ~ 18 )

MKW1021% (Typ.)

mA (Typ.)

mA (Typ.)mA (Typ.)

mA mA VDC VDC

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

Reflected Ripple Current Input Current

Output Current

Output Voltage

Input Voltage

Model Number

Model Selection Guide

EN55022 Class A

Conducted EMI

Free-Air Convection Cooling

---Humidity ]+125-40Storage Temperature ]+90-40Case

Operating Temperature ]+71-40Ambient Operating Temperature Unit Max.Min.Conditions Parameter

Environmental Specifications

Exceeding these values can damage the module. These are not continuous operating ratings.

5,000

---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

Note :

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 devices; however they may not meet all listed specifications.

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.

Absolute Maximum Ratings

K Hours

------700

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

MTBF

KHz 340300260Switching Frequency pF 470150---100KHz,1V

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

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

Isolation Voltage Unit Max.Typ.Min.Conditions Parameter

General 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 %------120Over Power Protection mV rms.15------Ripple & Noise (20MHz)mV P-P 100------Over Line,Load & Temp Ripple & Noise (20MHz)mV P-P 7550---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 Balance Load

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

Parameter

Output Specifications

Pi Filter

Input Filter

mW 4500

3500

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

Reverse Polarity Input Current 34292548V Input Models

17151324V Input Models 8.58712V Input Models Under Voltage Shortdown

36333048V Input Models

18171524V Input Models VDC 98.5812V Input Models Start Voltage

Unit

Max.Typ.Min.Model Parameter

Input Specifications

Note: # For each output .

470

2200

Maximum Capacitive Load Unit {15V #{12V #{5V #24V 15V 12V 5V 3.3V Models by Vout Capacitive Load

750mA Slow - Blow Type

1500mA Slow - Blow Type

3000mA Slow - Blow Type

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

Input Voltage Transient Rating

Test Configurations

Input Reflected-Ripple Current Test Setup

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 0.47uF 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.

Design & Feature Considerations

Maximum Capacitive Load

The MKW1000 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 470uF maximum capacitive load for dual outputs and 2200u F capacitive load for single outputs.

The maximum capacitance can be found in the data .

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.

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 15uF for the 12V input devices and a 4.7uF for the 24V and 48V devices.

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 3.9uF capacitors at the output.

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 90°C.

The derating curves are determined from measurements obtained in an experimental apparatus.

Units are encapsulated in a low thermal resistance molding compound which has excellent chemical resistance and electrical properties in high humidity environment and over a wide operating temperature range.

The encapsulant and outer shell of the unit have UL94V-0 ratings. The leads are golden plated for better soldering.

UL94V-0

:Flammability

32g :Weight

-Vout

Common 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

Connecting Pin Patterns

Top View ( 2.54 mm / 0.1 inch grids )

Mechanical Data