Dual Output

+Vo

PWM

Isolation

Ref.Amp

Filter

+Vin

-Vin

Com.

-Vo

On/Off

OVP

Single Output

+Vo

PWM

Isolation

Ref.Amp

Filter

+Vin

-Vin

-Vo

On/Off

OVP

Block Diagram

Wide Range

2:1

EN55022

EMI

I/O Isolation

1500

VDC

More Power

High

Power

Density

Remote on/off

Protection

OVP

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

Soft Start

Remote On/Off Control

Six-Sided Shielding

Complies with EN55022 Class A

CSA1950 Safety Approval

2:1 Wide Input Range

MTBF > 800,000 Hours

1500VDC Isolation

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

{15

469

{50

{835

{12

MKW3046

471

1340

MKW3044

469

100

1670

MKW3043

6.8

490

240

4000

MKW3042

3.9

335

240

4000

3.3

( 36 ~ 75 )

MKW3041

{18

941

{40

{670

{15

MKW3037

{15

938

{50

{835

{12

MKW3036

941

1340

MKW3034

938

100

1670

MKW3033

6.8

980

240

4000

MKW3032

3.9

671

240

4000

3.3

( 18 ~ 36 )

MKW3031

{18

1903

{40

{670

{15

MKW3027

{15

1898

{50

{835

{12

MKW3026

1903

1340

MKW3024

1898

100

1670

MKW3023

6.8

1984

240

4000

MKW3022

3.9

1358

240

4000

3.3

( 9 ~ 18 )

MKW3021

% (Typ.)

VDC

mA (Typ.)

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

-50

Storage Temperature

]

+105

-40

Case

Operating Temperature

]

+50

-40

Ambient

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

-0.7

48VDC Input Models

VDC

-0.7

24VDC Input Models

VDC

-0.7

12VDC 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 0-20

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.
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

3500

---

Short Circuit Input Power

---

All Models

Reverse Polarity Input Current

48V Input Models

16.5

24V Input Models

8.5

8.3

8.1

12V Input Models

Under Voltage Shutdown

48V Input Models

17.5

24V Input Models

VDC

8.8

8.6

12V Input Models

Start Voltage

Unit

Max.

Typ.

Min.

Model

Parameter

Input Specifications

Continuous

Output Short Circuit

%/]

{0.02

{0.01

---

Temperature Coefficient

---

Transient Response Deviation

300

150

---

25% Load Step Change

Transient Recovery Time

160

---

110

Over Power Protection

mV rms

---

Ripple & Noise (20MHz)

mV P-P

100

---

Over Line, Load & Temp.

Ripple & Noise (20MHz)

mV P-P

---

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

360

330

290

Switching Frequency

1500

1200

---

100KHz,1V

Isolation Capacitance

---

1000

500VDC

Isolation Resistance

VDC

---

1650

Flash Tested for 1 Second

Isolation Voltage Test

VDC

---

1500

60 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 )

---

Vin-RC = 5.0V

Control Input Current ( on )

---

Standby Input Current

VDC

---

Supply 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

Derating Curve

]

Ambient Temperature

Output Power (%)

100

-40

100

110

400LFM

200LFM

100LFM

Natural

convection

Efficiency vs Output Load ( Dual Output )

Efficiency vs Output Load ( Single Output )

Load Current (%)

Efficiency (%)

100

Load Current (%)

Efficiency (%)

100

Efficiency vs Input Voltage ( Dual Output )

Efficiency vs Input Voltage ( Single Output )

100

Efficiency (%)

Input Voltage (V)

Nom

Low

High

100

Efficiency (%)

Input Voltage (V)

Nom

Low

High

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.

Design & Feature Considerations

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 100
KHz) 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

+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

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

+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

DUT

Position of air velocity
probe and thermocouple

50mm / 2in

Air Flow

15mm / 0.6in

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

Common

No Pin

Metal With Non-Conductive Baseplate

Case Material

+Vout

-Vin

2.0*1.0*0.4 inches

+Vin

50.8*25.4*10.2 mm

Case Size

Dual Output

Single Output

Pin

Physical Characteristics

Pin Connections

{0.002

{0.05

X.XXX{0.005

X.XX{0.13

X.XX{0.01

X.X{0.25

Inches

Millimeters

Tolerance

Dual Output

Single Output

25.4 [1.00]

10.2 [0.40]

6.0 [0.24]

50.8

[2.0

15.2

[0.6

10.2 [0.40]

Bottom

Side

10.20 [0.402] 10.20 [0.402]

2.5 [0.1]

5.08 [0.200]

20.3

0 [0.

0
0

]

1.00

[ 0.

Connecting Pin Patterns

Top View ( 2.54 mm / 0.1 inch grids )

Mechanical Dimensions

MKW3000 Series

MINMAX

REV:0 2005/04

Электронный компонент: MKW3037