MKW5030 - Minmax Technology

A: 2.5V, 3.3V, 5V and 5.1V-output models use the synchronous-rectifier configuration shown as above.

12V and 15V-output models employ a standard, diode-rectification architecture.

+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/offProtection

OVP

Minmax's MKW5000-Series power modules are low-profile dc-dc

converters that operate over input voltage ranges of 18-36VDC and

36-75VDC which provide precisely regulated output voltages of 2.5V,

3.3V, 5V, 5.1V, 12V and 15VDC, 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 30W of power into a 2x1x0.4inch package, with

efficiencies as high as 88%, the MKW5000 includes continuous short

circuit protection, overvoltage protection, output trim function, 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.

yOutput Trim

yOver Voltage Protection

ySoft Start

yRemote On/Off Control

ySix-Sided Shielding

yComplies with EN55022 Class A

yUL1950 Safety Approval

y2:1 Wide Input Range

yMTBF > 600,000 Hours

y1500VDC Isolation

yEfficiency up to 88%

Key Features

25-30W, Wide Input Range, Single Output DC/DC Converters

MKW5000 Series

REV:0 2005/04

MINMAX

886.850604050005.1MKW5049

881810710133200015MKW5044

881510710166250012MKW5043

886.850604050005MKW5042

863.940480060003.3MKW5041

843

40372060002.5

( 36 ~ 75 )

MKW5040

886.8701207050005.1MKW5039

8818201420133200015MKW5034

8815201420166250012MKW5033

886.8701185050005MKW5032

863.950959060003.3MKW5031

843

100

50744060002.5

( 18 ~ 36 )

MKW5030

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

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

EfficiencyOver

Voltage

Protection

Reflected

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

]+125-50Storage Temperature

]+105-40CaseOperating Temperature

]+50-40AmbientOperating Temperature

UnitMax.Min.ConditionsParameter

Environmental Specifications

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

These are not continuous operating ratings.

mW5500

---

Internal Power Dissipation

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

VDC100-0.748VDC Input Models

VDC50-0.724VDC 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. To order the converter with Remote On/Off

function, please add a suffix -RC (e.g.

MKW5030-RC).

9.To order the converter with EN55022 Class A

function, please add a suffix A (e.g. MKW5030A).

10. Specifications subject to change without notice.

Absolute Maximum Ratings

MKW5000 Series

MINMAX

REV:0 2005/04

K Hours------600MIL-HDBK-217F @ 25], Ground BenignMTBF

KHz400350280Switching Frequency

pF15001200---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

%{5{2---Transient Response Deviation

uS500200---

25% Load Step Change

Transient Recovery Time

%160---110Over Power Protection

mV rms10------Ripple & Noise (20MHz)

mV P-P120------Over Line, Load & Temp.Ripple & Noise (20MHz)

mV P-P10075---Ripple & Noise (20MHz)

%{1.0{0.5---Io=10% to 100%Load Regulation (12/15Vout)

%{1.0{0.5---Io=0% to 100%Load Regulation (2.5/3.3/5/5.1Vout)

%{0.3{0.1---Vin=Min. to Max.Line Regulation

%{1.0{0.5---Output Voltage Accuracy

UnitMax.Typ.Min.ConditionsParameter

Output Specifications

Pi FilterInput Filter

mW4500------Short Circuit Input Power

A2------

All Models

Reverse Polarity Input Current

84828048V Input Models

44424024V Input Models

Over Voltage Shutdown

34333248V Input Models

1716.51624V Input Models

Under Voltage Shutdown

36353448V Input Models

VDC

1817.51724V Input Models

Start Voltage

UnitMax.Typ.Min.ModelParameter

Input Specifications

Referenced to Negative InputControl Common

uA-100------Vin-RC=0VControl Input Current ( off )

uA5------Vin-RC=5.0VControl Input Current ( on )

mA52---Device Standby Input Current

VDC1----1Supply Off

2.5 to 100VDC or Open CircuitSupply On

UnitMax.Typ.Min.ConditionsParameter

Remote On/Off Control

MKW5000 Series

REV:0 2005/04

MINMAX

uF6806806800680068006800Maximum Capacitive Load

Unit15V12V5.1V5V3.3V2.5VModels by Vout

Capacitive Load

1500mA Slow - Blow Type3000mA Slow - Blow Type

48V Input Models24V Input Models

Input Fuse Selection Guide

%{11.0{10.0{9.0% of nominal output voltageTrim Up / Down Range

UnitMax.Typ.Min.ConditionsParameter

Output Voltage Trim

Vin ( VDC )

10uS

150

140

130

120

110

100

100uS 1mS 10mS 100mS

48VDC Input Models

24VDC Input Models

Input Voltage Transient Rating

MKW5000 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 LoadEfficiency vs Input Voltage

100

Efficiency (%)

Load Current (%)

100

60402010 80

100

Efficiency (%)

Input Voltage (V)

NomLow High

MKW5000 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 -1V 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 -100uA.

The maximum allowable leakage current of a switch

connected to the on/off terminal (Pin 3) at logic high (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:

Vout-Vadj

(36.667*Vadj) - (33*Vout)

Radj-down =

VDC/ K[:Units

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.

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

MINMAX

REV:0 2005/04

+Out

-Out

+Vin

-Vin

DC / DC

Converter Load

Battery

+ Lin+

Cin

To Oscilloscope

Current

Probe

+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 680uF

maximum capacitive load for 12V & 15V outputs and 6800uF

capacitive load for the other 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.

MKW5000 Series

REV:0 2005/04

MINMAX

+Out

-Out

+Vin

-Vin

DC / DC

Converter Load

DC Power

Source

Cin

+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 Trim6

-Vout5

+Vout4

Aluminum Anodizing Treatment in

Black

:Case MaterialRemote On/Off3

-Vin2

2.0*1.0*0.4 inches+Vin1

50.8*25.4*10.2 mm

:Case Size

FunctionPin

Physical CharacteristicsPin Connections

{0.002{0.05Pin

X.XXX{0.005X.XX{0.13

X.XX{0.01X.X{0.25

InchesMillimetersTolerance

45.72 [1.8]

50.80 [2.0]

25.4 [1.0]

10.16 [0.4]

15.24 [0.6]

5.08 [0.2]

10.20 [0.4]

10.16 [0.4]

20.32 [0.8]

123

456

1.0[0.04]

Connecting Pin Patterns

Top View ( 2.54 mm / 0.1 inch grids )

Mechanical Dimensions

MKW5000 Series

MINMAX

REV:0 2005/04