MKW1032 - Minmax Technology

Dual Output

+Vo

PWM Isolation Ref.Amp

Filter

+Vin

-Vin

Com.

-Vo

Single Output

PWM Isolation Ref.Amp

Filter

+Vin

-Vin

-Vo

+Vo

Block Diagram

Wide Range

2:1

EN55022

EMI

I/O Isolation

1500

VDC

Low Cost

Minmax's MKW1000 series of DC/DC converters, comprising 24

different 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 2x1x0.4 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 {15VDC.

Other feathers include continuous short circuit protection, six-sided

shielded case and EN55022 Class A conducted noise compliance

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

filtering.

yInternal SMD Construction

yIndustry Standard Pinout

yTemperature Performance -40] to +71]

ySix-Sided Shielding

yComplies with EN55022 Class A

yUL1950 Safety Approval

y2:1 Wiide Input Range

yMTBF > 700,000 Hours

y1500VDC Isolation

yEfficiency up to 83%

Key Features

10W, Wide Input Range, Single & Dual Output DC/DC Converters

MKW1000 Series

REV:0 2005/04

MINMAX

83251{17{333{15MKW1048

83251{21{416{12MKW1047

81257{50{1000{5MKW1046

832512141624MKW1045

832523467015MKW1044

822534283012MKW1043

8026010020005MKW1042

1210

21712024003.3

( 36 ~ 75 )

MKW1041

82507{17{333{15MKW1038

82507{21{416{12MKW1037

80521{50{1000{5MKW1036

835012141624MKW1035

825113467015MKW1034

825064283012MKW1033

7853410020005MKW1032

2520

43412024003.3

( 18 ~ 36 )

MKW1031

801041{17{333{15MKW1028

811027{21{416{12MKW1027

781068{50{1000{5MKW1026

8110272141624MKW1025

8010473467015MKW1024

8010384283012MKW1023

77108210020005MKW1022

5030

91712024003.3

( 9 ~ 18 )

MKW1021

% (Typ.)mA (Typ.)mA (Typ.)mA (Typ.)mAmAVDCVDC

@Max. Load@No Load@Max. LoadMin.Max.

EfficiencyReflected

Ripple

Current

Input CurrentOutput CurrentOutput

Voltage

Input

Voltage

Model

Number

Model Selection Guide

EN55022 Class AConducted EMI

Six-Sided Shielded, Metal CaseRFI

Free-Air ConvectionCooling

%95---Humidity

]+125-40Storage Temperature

]+90-40CaseOperating Temperature

]+71-40AmbientOperating Temperature

UnitMax.Min.ConditionsParameter

Environmental Specifications

Exceeding the absolute maximum ratings of the unit could cause damage.

These are not continuous operating ratings.

mW5,000---Internal Power Dissipation

]260---Lead Temperature (1.5mm from case for 10 Sec.)

VDC100-0.748VDC Input Models

VDC50-0.724VDC Input Models

VDC25-0.712VDC Input Models

Input Surge Voltage

( 1000 mS )

UnitMax.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 0-20

MHz.

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.

Absolute Maximum Ratings

MKW1000 Series

MINMAX

REV:0 2005/04

K Hours------700MIL-HDBK-217F @ 25], Ground BenignMTBF

KHz340300260Switching Frequency

pF470150---100KHz,1VIsolation Capacitance

M[------1000500VDCIsolation Resistance

VDC------1650Flash Tested for 1 SecondIsolation Voltage Test

VDC------150060 SecondsIsolation Voltage Rated

UnitMax.Typ.Min.ConditionsParameter

General Specifications

ContinuousOutput Short Circuit

%/]{0.02{0.01---Temperature Coefficient

%{4{2---Transient Response Deviation

uS300150---

25% Load Step Change

Transient Recovery Time

%------120Over Power Protection

mV rms15------Ripple & Noise (20MHz)

mV P-P100------Over Line, Load & Temp.Ripple & Noise (20MHz)

mV P-P7550---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 LoadsOutput Voltage Balance

%{1.0{0.5---Output Voltage Accuracy

UnitMax.Typ.Min.ConditionsParameter

Output Specifications

Pi FilterInput Filter

mW45003500---Short Circuit Input Power

A2------

All Models

Reverse Polarity Input Current

34292548V Input Models

17151324V Input Models

8.58712V Input Models

Under Voltage Shutdown

36333048V Input Models

18171524V Input Models

VDC

98.5812V Input Models

Start Voltage

UnitMax.Typ.Min.ModelParameter

Input Specifications

# For each output

uF47047047022002200220022002200Maximum Capacitive Load

Unit{15V #{12V #{5V #24V15V12V5V3.3VModels by Vout

Capacitive Load

MKW1000 Series

REV:0 2005/04

MINMAX

750mA Slow - Blow Type1500mA Slow - Blow Type3000mA Slow - Blow Type

48V Input Models24V Input Models12V Input Models

Input Fuse Selection Guide

Vin ( VDC )

10uS

150

140

130

120

110

100

100uS 1mS 10mS 100mS

48VDC Input Models

24VDC Input Models

12VDC Input Models

Input Voltage Transient Rating

MKW1000 Series

MINMAX

REV:0 2005/04

Derating Curve

〜

]

Ambient Temperature

Output Power (%)

100

-40 50 60 80 100 110

9070

400LFM

200LFM

100LFM

Natural

convection

Efficiency vs Output Load ( Dual Output )Efficiency vs Output Load ( Single Output )

Load Current (%)

Efficiency (%)

100

60402010 80

Load Current (%)

Efficiency (%)

100

60402010 80

Efficiency vs Input Voltage ( Dual Output )Efficiency vs Input Voltage ( Single Output )

100

Efficiency (%)

Input Voltage (V)

NomLow High

100

Efficiency (%)

Input Voltage (V)

NomLow High

MKW1000 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 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 2200uF

capacitive load for single outputs.

The maximum capacitance can be found in the data sheet.

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 100

KHz) capacitor of a 15uF for the 12V input devices and a

4.7uF for the 24V and 48V devices.

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 3.9uF

capacitors at the output.

MKW1000 Series

MINMAX

REV:0 2005/04

+Out

-Out

+Vin

-Vin

DC / DC

Converter Load

Battery

+ Lin+

Cin

To Oscilloscope

Current

Probe

+Out

-Out

+Vin

-Vin

Dual Output

DC / DC

Converter

Resistive

Load

Scope

Copper Strip

Cout

Com.

Scope

Cout

+Out

-Out

+Vin

-Vin

Single Output

DC / DC

Converter

Resistive

Load

Scope

Copper Strip

Cout

+Out

-Out

+Vin

-Vin

DC / DC

Converter Load

DC Power

Source

Cin

+Out

-Out

+Vin

-Vin Load

DC Power

Source

Cout

Com.

Dual Output

DC / DC

Converter

+Out

-Out

+Vin

-Vin

Load

DC Power

Source

Cout

Single Output

DC / DC

Converter

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.

MKW1000 Series

REV:0 2005/04

MINMAX

DUT

Position of air velocity

probe and thermocouple 50mm / 2in Air Flow

15mm / 0.6in

The MKW1000 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

32g

:Weight

-Vout-Vout5

CommonNo Pin4

Metal With Non-Conductive Baseplate:Case Material +Vout+Vout3

-Vin-Vin2

2.0*1.0*0.4 inches+Vin+Vin1

50.8*25.4*10.2 mm

:Case Size

Dual OutputSingle OutputPin

Physical Characteristics

Pin Connections

{0.002{0.05Pin

X.XXX{0.005X.XX{0.13

X.XX{0.01X.X{0.25

InchesMillimetersTolerance

Dual Output

Single Output

10.2 [0.40]6.0 [0.24]

50.8 [2.00]

15.2 [0.60]

10.2 [0.40]

Bottom Side

345

10.20 [0.402] 10.20 [0.402] 2.5 [0.10]

20.30 [0.800]

1.00[ 0.039]

25.4 [1.00]

5.08 [0.200]

Connecting Pin Patterns

Top View ( 2.54 mm / 0.1 inch grids )

Mechanical Dimensions

MKW1000 Series

MINMAX

REV:0 2005/04