Single Output

+Vo

PWM

Isolation

Ref.Amp

+Vin

-Vin

-Vo

On/Off

Trim

OVP

Filter

UVLO

COMPARATORS

Block Diagram

EN55022

EMI

I/O Isolation

1500

VDC

Wide Range

2:1

More Power

High

Power

Density

Remote on/off

Protection

OVP

MKW5000-Series power modules are low-profile

dc-dc converters that operate over input voltage ranges of

18-36VDC and 36-75VDC and provide precisely regulated output

voltages of 2.5V, 3.3V, 5V, 5.1V, 12V, 15V,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 30W of power into a 2 x 1.0 x 0.4 inch package,

with efficiencies as high as 88%, the MKW5000 includes

continuous short circuit protection, overvoltage protection,

overtemperature protection, output trim function, remote on/off,

six-side shielded case and EN55022 level A conducted noise

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

external components.

MTBF > 600,000 Hours

EMI Complies With EN55022 Class A
(Only For MKW5000A Series)

Six-Sided Shielding Case

Over Voltage Protection

Short Circuit Protection

Soft Start

Remote on/off Control (Optional)

Output Trim Function

I / O Isolation 1500VDC

2:1 Input Range

Lead-Free Design

Very High Efficiency up to 88%

Key Features

Single Outputs

25 - 30 Watts 2:1 Wide Input Range DC/DC Converters

TOTAL POWER INT'L

MKW5000 Series

6.8

604

5000

5.1

MKW5049

710

133

2000

MKW5044

710

166

2500

MKW5043

6.8

604

5000

MKW5042

3.9

480

6000

3.3

MKW5041

372

6000

2.5

( 36 ~ 75 )

MKW5040

6.8

1207

5000

5.1

MKW5039

1420

133

2000

MKW5034

1420

166

2500

MKW5033

6.8

1185

5000

MKW5032

3.9

959

6000

3.3

MKW5031

100

744

6000

2.5

( 18 ~ 36 )

MKW5030

% ( Typ.)

VDC

mA ( Typ.)

VDC

@Max.

Load

@No Load

@Max.

Load

Min.

M a x .

Efficiency

O v e r

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

M a x .

Min.

Conditions

Parameter

Environmental Specifications

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

These are not continuous operating ratings.

5500

---

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

Input Surge Voltage

( 1000 mS )

Unit

M a x .

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 0-20

MHz.

4. These power converters require a minimum

output loading to maintain specified regulation.

5. Operation at no-load will not damage these

units. However, they may not meet all

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.
9.To order the converter with Remote on/off

function ,please add suffix - RC ( EX :

MK5000(A)-RC).

Absolute Maximum Ratings

MKW5000 Series

K Hours

---

600

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

MTBF

KHz

400

350

280

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

M a x .

Typ.

Min.

Conditions

Parameter

General Specifications

Continuous

Output Short Circuit

%/]

{0.02

{0.01

---

Temperature Coefficient

---

Transient Response Deviation

500

200

---

25% Load Step Change

Transient Recovery Time

160

---

110

Over Power Protection

mV rms.

---

Ripple & Noise (20MHz)

mV P-P

120

---

Over Line,Load & Temp

Ripple & Noise (20MHz)

mV P-P

100

---

Ripple & Noise (20MHz)

{1.0

{0.5

---

Io=10% to 100%

Load Regulation (12/15Vout)

{1.0

{0.5

---

No Load to 100%

Load Regulation (2.5/3.3/5Vout)

{0.3

{0.1

---

Vin=Min. to Max.

Line Regulation

{1.0

{0.5

---

Output Voltage Accuracy

Unit

M a x .

Typ.

Min.

Conditions

Parameter

Output Specifications

Pi Filter

Input Filter

4500

---

Short Circuit Input Power

---

All Models

Reverse Polarity Input Current

48V Input Models

24V Input Models

Over Voltage Shutdown

48V Input Models

16.5

24V Input Models

Under Voltage Shutdown

48V Input Models

VDC

17.5

24V Input Models

Start Voltage

Unit

M a x .

Typ.

Min.

Model

Parameter

Input Specifications

Referenced to Negative Input

Control Common

-100

---

Vin-RC=0V

Control Input Current ( off )

---

Vin-RC=5.0V

Control Input Current ( on )

---

Device Standby Input Current

VDC

---

-1

Supply Off

VDC

2.5 to 100VDC or Open Circuit

Supply On

Unit

M a x .

Typ.

Min.

Conditions

Parameter

Remote On/Off Control

MKW5000 Series

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 -0.7V to 1.0V.
A logic high is 2.5V to 100V.
The maximum sink current at the on/off terminal (Pin 3)

during a logic low is 100 mA.

The maximum allowable leakage current of a switch

connected to the on/off terminal (Pin 3) at logic hight (2.5V to
100V) is 5uA.

Output Voltage Trim

Output voltage trim allows the user to increase or

decrease the output voltage set point of a module.

The output voltage can be adjusted by placing an external

resistor (Radj) between the Trim and +Vout or -Vout
terminals. By adjusting Radj, the output voltage can be
change by {10% of the nominal output voltage.

A 10K, 1 or 10 Turn trimpot is usually specified for

continuous trimming. Trim pin may be safely left floating if it
is not used.

Connecting the external resistor (Radj-up) between the

Trim and -Vout pins increases the output voltage to set the
point as defined in the following equation:

Vadj - Vout

(33*Vout)- (30*Vadj)

Radj-up =

Connecting the external resistor (Radj-down) between

the Trim and +Vout pins decreases the output voltage set
point as defined in the following equation:

V out-Vadj

(36.667*Vadj) - (33*Vout)

Radj-down =

VDC/ K[

Unit
s

Adjusted Output voltage

Vadj

Nominal Output Voltage

Vout

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.

Output 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.

MKW5000 Series

+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

Trim Up

Enable

Trim

Trim Down

10K

Trim

Up/Down

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 33uF for the 12V input devices and a
10uF 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 4.7uF

capacitors at the output.

Maximum Capacitive Load

The MKW5000 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 220uF/A

maximum of output current

for dual outputs.

The maximum capacitance can be found in the data.

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.

MKW5000 Series

+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

DUT

Position of air velocity
probe and thermocouple

50mm / 2in

Air Flow

15mm / 0.6in

The MKW5000 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.

32g

Weight

Trim

-Vout

+Vout

Aluminum Anodizing Treatment in
black

Case Material

Remote on/off

-Vin

2.0*1.0*0.4 inches

+Vin

50.8*25.4*10.2 mm

Case Size

Single Output

Pin

Physical Characteristics

Pin Connections

{0.002

{0.05

Pin

.XXX{0.01

.XX{0.25

.XX{0.01

.X{0.25

Inches

Millimeters

Tolerance

Single Output

Connecting Pin Patterns

Top View ( 2.54 mm / 0.1 inch grids )

Mechanical Dimensions

MKW5000 Series

Электронный компонент: MKW5000