®
MKW50 SERIES
DC/DC CONVERTER 50W,
Highest Power Density
FEATURES
►
Smallest Encapsulated 50W Converter!
►
Package Size 2.0”x 1.0”x 0.4”
►
Wide 2:1 lnput Range
►
Excellent Efficiency up to 92%
►
Over-Temperature Protection
►
I/O-isolation Voltage 1500VDC
►
Remote On/Off Control
►
Shielded Metal Case with Isolated Baseplate
►
Heatsink (Optional)
►CSA/UL/IEC/EN
60950-1 (Approval pending)
►
3 Years Product Warranty
PRODUCT OVERVIEW
The MINMAX MKW50 series is the latest generation of high performance dc-dc converter modules setting a new standard concerning power density. The
product offers fully 50W in an encapsulated, shielded metal package with dimensions of just 2.0”x1.0”x0.4”.All models provide wide 2:1 input voltage range
and precisely regulated output voltages.
Advanced circuit topology provides a very high efficiency up to 92% which allows an operating temperature range of -40°C to +80°C . Further features
include remote On/Off, trimmable output voltage, under-voltage shutdown as well as overload and over-temperature protection.
Typical applications for these converters are battery operated equipment, instrumentation, distributed power architectures in communication and industrial
electronics and many other space critical applications.
Model Selection Guide
Model
Number
Input
Voltage
(Range)
VDC
MKW50-12S033
MKW50-12S05
MKW50-12S12
MKW50-12S15
MKW50-12S24
MKW50-24S033
MKW50-24S05
MKW50-24S12
MKW50-24S15
MKW50-24S24
MKW50-48S033
MKW50-48S05
MKW50-48S12
MKW50-48S15
MKW50-48S24
12
( 9 ~ 18 )
VDC
3.3
5
12
15
24
3.3
5
12
15
24
3.3
5
12
15
24
Output
Voltage
Max.
mA
10000
10000
4170
3330
2080
10000
10000
4170
3330
2080
10000
10000
4170
3330
2080
@Max. Load
mA(typ.)
3090
4630
4580
4580
4680
1550
2260
2260
2260
2290
770
1130
1130
1130
1150
@No Load
mA(typ.)
85
110
160
160
250
50
70
85
85
110
35
45
50
50
60
Output Current
Input Current
Reflected
Ripple
Current
mA(typ.)
Over
Voltage
Protection
VDC
3.9
6.2
15
18
30
3.9
6.2
15
18
30
3.9
6.2
15
18
30
μF
25800
17000
2900
1900
750
25800
17000
2900
1900
750
25800
17000
2900
1900
750
Max. capacitive
Load
Efficiency
(typ.)
@Max. Load
%
89
90
91
91
89
89
92
92
92
91
89
92
92
92
91
50
24
( 18 ~ 36 )
40
48
( 36 ~ 75 )
30
Input Specifications
Parameter
Input Surge Voltage (100ms. max)
Min.
Typ.
Max.
Unit
-0.7
---
25
-0.7
---
50
-0.7
---
100
---
---
9
VDC
---
---
18
---
---
36
---
8.3
---
---
16.5
---
---
33
---
None
---
---
30
ms
Nominal Vin and Constant Resistive Load
---
---
30
ms
All Models
LC Filter (for EN55022,Class A compliance see note 7)
--- (Hiccup Mode 1.5 Hz typ.)
Model
12V Input Models
24V Input Models
48V Input Models
12V Input Models
24V Input Models
48V Input Models
12V Input Models
24V Input Models
48V Input Models
Start-Up Threshold Voltage
Under Voltage Lockout
Input Polarity Protection
Start Up Time
Internal Filter Type
Short Circuit Current
E-mail:sales@minmax.com.tw
Power Up
Remote On/Off
Tel:886-6-2923150
2012/08/08
REV:9
Page 1 of 8
®
Output Specifications
Parameter
Output Voltage Setting Accuracy
Line Regulation
Load Regulation
Minimum Load
Ripple & Noise (20MHz bandwith)
Transient Recovery Time
Temperature Coefficient
Over Load Protection
Short Circuit Protection
Over Voltage Protection
Conditions
At 50% Load and Nominal Vin
Vin=Min. to Max. @ Full Load
Min. Load to Full Load
Min.
Typ.
---
---
---
---
---
---
No minimum Load Requirement
3.3V & 5V Models
(3)
---
100
---
150
12V, 15V & 24V Models
(3)
25% Load Step Change
(2)
---
250
---
---
Hiccup @ Nominal Vin
115
130
Hiccup Automatic Recovery
For Shutdown Voltage see Model Selection Guide
Conditions
60 Seconds
500 VDC
100KHz, 1V
MKW50 SERIES
DC/DC CONVERTER 50W,
Highest Power Density
Max.
±1.0
±0.5
±0.5
---
---
---
±0.02
---
Unit
%Vnom.
%
%
mV
P-P
mV
P-P
μsec
%/℃
%
General Specifications
Parameter
I/O Isolation Voltage (rated)
I/O Isolation Resistance
I/O Isolation Capacitance
Switching Frequency
MTBF(calculated)
Safety Approvals(pending)
Min.
Typ.
Max.
1500
---
---
1000
---
---
---
---
2200
---
320
---
MIL-HDBK-217F@25℃, Ground Benign
227,100
---
---
UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme)
Unit
VDC
MΩ
pF
KHz
Hours
Input Fuse
12V Input Models
10000mA Slow-Blow Type
24V Input Models
5000mA Slow-Blow Type
48V Input Models
2500mA Slow-Blow Type
Remote On/Off Control
Parameter
Converter On
Converter Off
Control Input Current (on)
Control Input Current (off)
Control Common
Standby Input Current
Conditions
Min.
Typ.
3.5V ~ 12V or Open Circuit
0V ~ 1.2V or Short Circuit
---
0.5
---
-0.5
Referenced to Negative Input
---
2.5
Max.
Unit
Vctrl = 5.0V
Vctrl = 0V
Nominal Vin
---
---
---
mA
mA
mA
Output Voltage Trim
Parameter
Trim Up / Down Range
Conditions
% of Nominal Output Voltage
Min.
±10
Typ.
---
Max.
---
Unit
%
Environmental Specifications
Parameter
Operating Ambient Temperature Range
(Natural Convection, see Derating)
Model
MKW50-XXS033
MKW50-24S05, MKW50-24S12
MKW50-24S15, MKW50-48S05
MKW50-48S12, MKW50-48S15
MKW50-12S12, MKW50-12S15
MKW50-12S05
Natural Convection without Heatsink
Natural Convection with Heatsink
100LFM Convection without Heatsink
100LFM Convection with Heatsink
200LFM Convection without Heatsink
200LFM Convection with Heatsink
400LFM Convection without Heatsink
400LFM Convection with Heatsink
Shutdown Temperature
-50
---
Six-Sided Shielded, Metal Case
---
Min.
Max.
without Heatsink with Heatsink
56
64
53
46
38
12.1
9.8
9.2
5.4
7.8
4.5
5.2
3.0
---
---
---
---
---
---
---
---
---
+105
110℃ typ.
+125
95
260
62
56
49
℃/W
℃/W
℃/W
℃/W
℃/W
℃/W
℃/W
℃/W
℃
℃
% rel. H
℃
Unit
-40
℃
Thermal Impedance
Case Temperature
Thermal Protection
Storage Temperature Range
Humidity (non condensing)
RFI
Lead Temperature (1.5mm from case for 10Sec.)
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
2012/08/08
REV:9
Page 2 of 8
®
Power Derating Curve
MKW50 SERIES
DC/DC CONVERTER 50W,
Highest Power Density
MKW50-12S033, MKW50-24S033, MKW50-48S033
Derating Curve without Heatsink
MKW50-12S033, MKW50-24S033, MKW50-48S033
Derating Curve with Heatsink
MKW50-24S05, MKW50-24S12, MKW50-24S15, MKW50-48S05,
MKW50-48S12, MKW50-48S15 Derating Curve without Heatsink
MKW50-24S05, MKW50-24S12, MKW50-24S15, MKW50-48S05,
MKW50-48S12, MKW50-48S15 Derating Curve with Heatsink
MKW50-12S12, MKW50-12S15 Derating Curve without Heatsink
MKW50-12S12, MKW50-12S15 Derating Curve with Heatsink
MKW50-12S05 Derating Curve without Heatsink
MKW50-12S05 Derating Curve with Heatsink
Notes
1
2
3
4
5
6
7
8
9
Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted.
Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%.
Ripple & Noise measurement bandwidth is 0-20MHz, measured with a 1μF MLCC and a 10μF Tantalum Capatitor.
All DC/DC converters should be externally fused at the front end for protection.
Other input and output voltage may be available, please contact factory.
To order the converter with heatsink, please add a
suffix -HS
(e.g. MKW50-12S05-HS) to order code.
The MKW50 series can meet EN55022 Class A with parallel an external capacitor to the input pins. (12Vin: 22μF/25V 1210 MLCC, 24Vin: 3.3μF/50V 1210
MLCC, 48Vin: 2.2μF/100V 1210 MLCC.
That “natural convection” is about 20LFM but is not equal to still air (0 LFM).
Specifications are subject to change without notice.
Tel:886-6-2923150
E-mail:sales@minmax.com.tw
2012/08/08
REV:9
Page 3 of 8
®
Efficiency Curve @25℃
95
90
Efficiency(%)
Efficiency(%)
85
80
75
70
65
60
10
20
30
40
50
60
70
80
90
100
% of Full Load
9V
12V
18V
95
90
85
80
75
70
65
60
10
20
30
40
50
60
70
MKW50 SERIES
DC/DC CONVERTER 50W,
Highest Power Density
9V
12V
18V
80
90
100
% of Full Load
MKW50-12S033 Efficiency vs Load Current
95
90
Efficiency(%)
Efficiency(%)
95
90
85
80
75
70
65
60
10
MKW50-12S05 Efficiency vs Load Current
85
80
75
70
65
60
10
20
30
40
50
60
70
80
90
100
% of Full Load
9V
12V
18V
9V
12V
18V
20
30
40
50
60
70
80
90
100
% of Full Load
MKW50-12S12 Efficiency vs Load Current
95
90
Efficiency(%)
Efficiency(%)
85
80
75
70
65
60
10
20
30
40
50
60
70
80
90
100
% of Full Load
18V
24V
36V
95
90
85
80
75
70
65
60
10
MKW50-12S15 Efficiency vs Load Current
18V
24V
36V
20
30
40
50
60
70
80
90
100
% of Full Load
MKW50-24S033 Efficiency vs Load Current
95
90
Efficiency(%)
Efficiency(%)
85
80
75
70
65
60
10
20
30
40
50
60
70
80
90
100
% of Full Load
18V
24V
36V
100
95
90
85
80
75
70
65
60
10
MKW50-24S05 Efficiency vs Load Current
18V
24V
36V
20
30
40
50
60
70
80
90
100
% of Full Load
MKW50-24S12 Efficiency vs Load Current
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
MKW50-24S15 Efficiency vs Load Current
2012/08/08
REV:9
Page 4 of 8
®
Efficiency Curve @25℃
95
90
Efficiency(%)
Efficiency(%)
85
80
75
70
65
60
10
20
30
40
50
60
70
80
90
100
% of Full Load
36V
48V
75V
95
90
85
80
75
70
65
60
10
20
30
40
50
60
70
MKW50 SERIES
DC/DC CONVERTER 50W,
Highest Power Density
36V
48V
75V
80
90
100
% of Full Load
MKW50-48S033 Efficiency vs Load Current
95
90
Efficiency(%)
Efficiency(%)
85
80
75
70
65
60
10
20
30
40
50
60
70
80
90
100
% of Full Load
36V
48V
75V
95
90
85
80
75
70
65
60
10
MKW50-48S05 Efficiency vs Load Current
36V
48V
75V
20
30
40
50
60
70
80
90
100
% of Full Load
MKW50-48S12 Efficiency vs Load Current
MKW50-48S15 Efficiency vs Load Current
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
2012/08/08
REV:9
Page 5 of 8
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