MKW5000 Series
25-30W, Wide Input Range, Single Output DC/DC Converters
Key Features
Efficiency up to 88%
1500VDC Isolation
MTBF > 600,000 Hours
2:1 Wide Input Range
UL1950 Safety Approval
Complies with EN55022 Class A
Six-Sided Shielding
Remote On/Off Control
Soft Start
Over Voltage Protection
Output Trim
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.
OVP
Protection
Remote on/off
High
Power
Density
More Power
2:1
Wide Range
1500
VDC
I/O Isolation
EMI
EN55022
Block Diagram
+Vin
UVLO
COMPARATORS
LC
Filter
LC
Filter
A
+Vo
-Vo
OVP
-Vin
On/Off
PWM
Isolation
Ref.Amp
Trim
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.
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MINMAX
REV:0 2005/04
MKW5000 Series
Model Selection Guide
Model
Number
Input
Voltage
Output
Voltage
Output Current
Input Current
Reflected
Ripple
Current
mA (Typ.)
Over
Voltage
Protection
VDC
3
3.9
6.8
15
18
6.8
3
3.9
6.8
15
18
6.8
Efficiency
VDC
MKW5030
MKW5031
MKW5032
MKW5033
MKW5034
MKW5039
MKW5040
MKW5041
MKW5042
MKW5043
MKW5044
MKW5049
24
( 18 ~ 36 )
48
( 36 ~ 75 )
VDC
2.5
3.3
5
12
15
5.1
2.5
3.3
5
12
15
5.1
Max.
mA
6000
6000
5000
2500
2000
5000
6000
6000
5000
2500
2000
5000
Min.
mA
0
0
0
166
133
0
0
0
0
166
133
0
@Max. Load @No Load
mA (Typ.)
mA (Typ.)
744
50
959
50
1185
70
1420
20
1420
20
1207
70
372
40
480
40
604
50
710
10
710
10
604
50
100
50
@Max. Load
% (Typ.)
84
86
88
88
88
88
84
86
88
88
88
88
Absolute Maximum Ratings
Parameter
24VDC Input Models
Input Surge Voltage
( 1000 mS )
48VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
Min.
-0.7
-0.7
---
---
Max.
50
100
260
5500
Unit
VDC
VDC
]
mW
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.
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
Environmental Specifications
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
RFI
Conducted EMI
Conditions
Ambient
Case
Min.
Max.
-40
+50
-40
+105
-50
+125
---
95
Free-Air Convection
Six-Sided Shielded, Metal Case
EN55022 Class A
Unit
]
]
]
%
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.
REV:0 2005/04
MINMAX
2
MKW5000 Series
Input Specifications
Parameter
Start Voltage
Under Voltage Shutdown
Over Voltage Shutdown
Reverse Polarity Input Current
Short Circuit Input Power
Input Filter
All Models
Model
24V Input Models
48V Input Models
24V Input Models
48V Input Models
24V Input Models
48V Input Models
Min.
17
34
16
32
40
80
---
---
Typ.
17.5
35
16.5
33
42
82
---
---
Pi Filter
Max.
18
36
17
34
44
84
2
4500
A
mW
VDC
Unit
Output Specifications
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation (2.5/3.3/5/5.1Vout)
Load Regulation
(12/15Vout)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Over Power Protection
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
25% Load Step Change
Over Line, Load & Temp.
Vin=Min. to Max.
Io=0% to 100%
Io=10% to 100%
Conditions
Min.
---
---
---
---
---
---
---
110
---
---
---
Continuous
Typ.
{0.5
{0.1
{0.5
{0.5
75
---
---
---
200
{2
{0.01
Max.
{1.0
{0.3
{1.0
{1.0
100
120
10
160
500
{5
{0.02
Unit
%
%
%
%
mV P-P
mV P-P
mV rms
%
uS
%
%/]
General Specifications
Parameter
Isolation Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Conditions
60 Seconds
Flash Tested for 1 Second
500VDC
100KHz,1V
Min.
1500
1650
1000
---
280
600
Typ.
---
---
---
1200
350
---
Max.
---
---
---
1500
400
---
Unit
VDC
VDC
M[
pF
KHz
K Hours
Remote On/Off Control
Parameter
Supply On
Supply Off
Device Standby Input Current
Control Input Current ( on )
Control Input Current ( off )
Control Common
Vin-RC=5.0V
Vin-RC=0V
Conditions
Min.
-1
---
---
---
Typ.
---
2
---
---
Max.
1
5
5
-100
Unit
VDC
mA
uA
uA
2.5 to 100VDC or Open Circuit
Referenced to Negative Input
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MINMAX
REV:0 2005/04
MKW5000 Series
Capacitive Load
Models by Vout
Maximum Capacitive Load
2.5V
6800
3.3V
6800
5V
6800
5.1V
6800
12V
680
15V
680
Unit
uF
Input Fuse Selection Guide
24V Input Models
3000mA Slow - Blow Type
48V Input Models
1500mA Slow - Blow Type
Output Voltage Trim
Parameter
Trim Up / Down Range
Conditions
% of nominal output voltage
Min.
{9.0
Typ.
{10.0
Max.
{11.0
Unit
%
Input Voltage Transient Rating
150
140
130
120
110
100
Vin ( VDC )
90
80
70
60
50
40
30
20
10
0
10uS
100uS
1mS
10mS
100mS
24VDC Input Models
48VDC Input Models
REV:0 2005/04
MINMAX
4
MKW5000 Series
100
90
Efficiency (%)
100
90
80
Efficiency (%)
Low
Nom
Input Voltage (V)
High
80
70
60
50
70
60
50
40
30
20
10
20
40
60
Load Current (%)
80
100
Efficiency vs Input Voltage
Efficiency vs Output Load
100
400LFM
80
Output Power (%)
Natural
convection
100LFM
200LFM
60
40
20
0
-40
〜
50
60
70
80
]
90
100
110
Ambient Temperature
Derating Curve
5
MINMAX
REV:0 2005/04
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