MINMAX MKWI40

®
MKWI40 SERIES
DC/DC CONVERTER 40W, Highest Power Density
FEATURES
► Smallest Encapsulated 40W Converter!
► Package Size 2.0”x 1.0”x 0.4”
► Ultra-wide 4:1 lnput Range
► Excellent Efficiency up to 90%
► Operating Temp. Range -40°C to +80°C
► Over-temperature Protection
► I/O-isolation Voltage 1500VDC
► Remote On/Off Control
► Shielded Metal Case with Isolated Baseplate
► 3 Years Product Warranty
PRODUCT OVERVIEW
The MINMAX MKWI40 series is the latest generation of high performance DC-DC converter modules setting a new standard concerning power density. The
product offers fully 40W in an encapsulated, shielded metal package with dimensions of just 2.0”x1.0”x0.4”. All models provide ultra-wide 4:1 input voltage
range and precisely regulated output voltages.
Advanced circuit topology provides a very high efficiency up to 90% which allows an operating temperature range of -40°C to +80°C. Further features
include remote On/Off, trimmable output voltage, under-voltage lockout 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
Input
Output
Number
Voltage
Voltage
(Range)
VDC
MKWI40-24S033
MKWI40-24S05
MKWI40-24S12
MKWI40-24S15
MKWI40-24S24
MKWI40-24D12
MKWI40-24D15
MKWI40-48S033
MKWI40-48S05
MKWI40-48S12
MKWI40-48S15
MKWI40-48S24
MKWI40-48D12
MKWI40-48D15
24
(9 ~ 36)
48
(18 ~ 75)
VDC
3.3
5
12
15
24
±12
±15
3.3
5
12
15
24
±12
±15
Output Current
Input Current
Max.
Min.
@Max. Load
mA
8000
8000
3330
2670
1670
±1670
±1330
8000
8000
3330
2670
1670
±1670
±1330
mA
0
0
0
0
0
±145
±110
0
0
0
0
0
±145
±110
mA(typ.)
1240
1850
1870
1870
1870
1890
1890
620
930
930
930
940
950
950
Reflected
Over
Max. capacitive
Efficiency
Ripple
Voltage
Load
(typ.)
@No Load
Current
Protection
mA(typ.)
90
90
95
105
115
65
65
55
55
60
65
75
45
45
mA (typ.)
VDC
3.9
6.2
15
18
30
±15
±18
3.9
6.2
15
18
30
±15
±18
30
20
@Max. Load
μF
21000
13600
2400
1500
600
1200#
750#
21000
13600
2400
1500
600
1200#
750#
%
89
90
89
89
89
88
88
89
90
90
90
89
88
88
# For each output
Input Specifications
Parameter
Model
24V Input Models
48V Input Models
24V Input Models
48V Input Models
24V Input Models
48V Input Models
Input Surge Voltage (100ms. max.)
Start-Up Threshold Voltage
Under Voltage Lockout
Input Polarity Protection
Start Up Time
Power Up
Remote On/Off
Internal Filter Type
Short Circuit Current
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2012/04/20 REV:4
Min.
Typ.
Max.
Unit
-0.7
--50
-0.7
--100
----9
VDC
----18
--8.3
----16.5
--None
----30
ms
Nominal Vin and Constant Resistive Load
----30
ms
All Models
LC Filter (for EN55022,Class A compliance see page 7)
--- (Hiccup Mode 1.5 Hz typ.)
Tel:886-6-2923150
Page 1 of 8
®
MKWI40 SERIES
DC/DC CONVERTER 40W, Highest Power Density
Output Specifications
Parameter
Output Voltage Setting Accuracy
Output Voltage Balance
Line Regulation
Conditions
Min.
Typ.
Max.
Unit
At 50% Load and Nominal Vin
----±1.0
%Vnom.
Dual Output, Balanced Loads
----±2.0
%
Vin=Min. to Max.
----±0.5
%
Single Output
----±0.5
%
Min. Load to Full Load
Dual Output
----±1.0
%
Asymmetrical Load 25%/100% Full Load
----±5.0
%
No Minimum Load Requirement for Single Output Models, for dual Output Models see Table
3.3V & 5V Output Models
--100
--mV P-P
12V, 15V & 24V Models
--150
--mV P-P
Dual Output Models
--150
--mV P-P
25% Load Step Change
--250
--μsec
----±0.02
%/℃
Current Limitation at 150% typ. of Iout max., Hiccup
Hiccup Automatic Recovery
For Shutdown Voltage see Model Selection Guide
Load Regulation
Load Cross Regulation (Dual Output)
Minimum Load
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Transient Recovery Time
Temperature Coefficient
Over Load Protection
Short Circuit Protection
Over Voltage Protection
General Specifications
Parameter
I/O Isolation Voltage (rated)
I/O Isolation Resistance
I/O Isolation Capacitance
Switching Frequency
MTBF(calculated)
Safety Approvals(pending)
Input Fuse
Conditions
60 Seconds
500 VDC
100KHz, 1V
Min.
Typ.
Max.
1500
----1000
--------1500
--320
--MIL-HDBK-217F@25℃, Ground Benign
328,000
----UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme)
24V Input Models
8000mA Slow-Blow Type
Unit
VDC
MΩ
pF
KHz
Hours
48V Input Models
4000mA 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
Vctrl = 5.0V
Vctrl = 0V
Nominal Vin
Min.
Typ.
4.7V ~ 12V or Open Circuit
0V ~ 1.2V or Short Circuit
--0.5
---0.5
Referenced to Negative Input
--2.5
Max.
Unit
-----
mA
mA
---
mA
Max.
---
Unit
%
Output Voltage Trim
Parameter
Trim Up / Down Range
Conditions
% of nominal output voltage
Min.
±10
Typ.
---
Environmental Specifications
Parameter
Model
MKWI40-XXS033
MKWI40-24S05, MKWI40-48S05
MKWI40-48S12, MKWI40-48S15
MKWI40-24S12, MKWI40-24S15
MKWI40-24D12, MKWI40-24D15
MKWI40-48D12, MKWI40-48D15
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
Operating Ambient Temperature Range
(Natural Convection, see Derating)
Thermal Impedance
Case Temperature
Thermal Protection
Storage Temperature Range
Humidity (non condensing)
RFI
Lead Temperature (1.5mm from case for 10Sec.)
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2012/04/20 REV:4
Shutdown Temperature
Tel:886-6-2923150
Page 2 of 8
Min.
-40
Max.
without Heatsink with Heatsink
66
73
51
61
45
57
40
52
----------------+105
110℃ typ.
-50
+125
--95
Six-Sided Shielded, Metal Case
--260
12.0
10.0
9.0
5.4
8.0
4.5
6.0
3.0
---
Unit
℃
℃/W
℃/W
℃/W
℃/W
℃/W
℃/W
℃/W
℃/W
℃
℃
% rel. H
℃
®
MKWI40 SERIES
DC/DC CONVERTER 40W, Highest Power Density
Power Derating Curve
100
Natural
convection
Output Power (%)
80
100LFM
60
200LFM
400LFM
40
20
0
~
-40
0
20
40
60
80
100 110
Ambient Temperature C
MKWI40-24S033,MKWI40-48S033 Derating Curve without Heatsink
MKWI40-24S033,MKWI40-48S033 Derating Curve with Heatsink
100
Natural
convection
Output Power (%)
Output Power (%)
80
100LFM
60
200LFM
400LFM
40
20
0
~
-40
0
20
40
60
80
100 110
Ambient Temperature C
MKWI40-24S05,MKWI40-48S05, MKWI40-48S12, MKWI40-48S15
MKWI40-24S05,MKWI40-48S05, MKWI40-48S12, MKWI40-48S15
Derating Curve without Heatsink
Derating Curve with Heatsink
100
100
Natural
convection
80
Output Power (%)
Output Power (%)
80
100LFM
60
200LFM
400LFM
40
20
Natural
convection
100LFM
60
200LFM
400LFM
40
20
0
0
~
-40
0
20
40
60
80
100 110
~
-40
0
20
MKWI40-24S12,MKWI40-24S15 Derating Curve without Heatsink
40
60
80
100 110
Ambient Temperature C
Ambient Temperature C
MKWI40-24S12,MKWI40-24S15 Derating Curve with Heatsink
100
Natural
convection
Output Power (%)
Output Power (%)
80
100LFM
60
200LFM
400LFM
40
20
0
~
-40
0
20
40
60
80
100 110
Ambient Temperature C
MKWI40-24D12,MKWI40-24D15, MKWI40-48D12, MKWI40-48D15
MKWI40-24D12,MKWI40-24D15, MKWI40-48D12, MKWI40-48D15
Derating Curve without Heatsink
Derating Curve with Heatsink
E-mail:[email protected]
2012/04/20 REV:4
Tel:886-6-2923150
Page 3 of 8
®
MKWI40 SERIES
DC/DC CONVERTER 40W, Highest Power Density
100
100
90
90
Efficiency(%)
Efficiency(%)
Efficiency Curve @25℃
80
70
60
80
70
60
9V
50
9V
50
24V
36V
40
10
20
30
40
50
60
70
80
90
24V
36V
40
100
10
20
30
% of Full Load
50
60
70
80
90
100
% of Full Load
MKWI40-24S033 Efficiency vs Load Current
MKWI40-24S05 Efficiency vs Load Current
100
100
90
90
Efficiency(%)
Efficiency(%)
40
80
70
60
80
70
60
9V
50
9V
50
24V
36V
40
10
20
30
40
50
60
70
80
90
24V
36V
40
100
10
20
30
% of Full Load
50
60
70
80
90
100
% of Full Load
MKWI40-24S12 Efficiency vs Load Current
MKWI40-24S15 Efficiency vs Load Current
100
100
90
90
Efficiency(%)
Efficiency(%)
40
80
70
60
80
70
60
9V
50
24V
36V
40
10
20
30
40
50
60
70
80
90
100
% of Full Load
MKWI40-24D12 Efficiency vs Load Current
E-mail:[email protected]
2012/04/20 REV:4
Tel:886-6-2923150
Page 4 of 8
9V
50
24V
36V
40
10
20
30
40
50
60
70
80
90
100
% of Full Load
MKWI40-24D15 Efficiency vs Load Current
®
MKWI40 SERIES
DC/DC CONVERTER 40W, Highest Power Density
100
100
90
90
Efficiency(%)
Efficiency(%)
Efficiency Curve @25℃
80
70
60
80
70
60
18V
18V
50
50
48V
75V
40
10
20
30
40
50
60
70
80
90
48V
75V
40
10
100
20
30
50
60
70
80
90
100
% of Full Load
% of Full Load
MKWI40-48S033 Efficiency vs Load Current
MKWI40-48S05 Efficiency vs Load Current
100
100
90
90
Efficiency(%)
Efficiency(%)
40
80
70
60
80
70
60
18V
50
18V
50
48V
75V
40
10
20
30
40
50
60
70
80
90
48V
75V
40
100
10
20
30
% of Full Load
50
60
70
80
90
100
% of Full Load
MKWI40-48S12 Efficiency vs Load Current
MKWI40-48S15 Efficiency vs Load Current
100
100
90
90
Efficiency(%)
Efficiency(%)
40
80
70
60
80
70
60
18V
50
48V
75V
40
10
20
30
40
50
60
70
80
90
100
% of Full Load
MKWI40-48D12 Efficiency vs Load Current
E-mail:[email protected]
2012/04/20 REV:4
Tel:886-6-2923150
Page 5 of 8
18V
50
48V
75V
40
10
20
30
40
50
60
70
80
90
100
% of Full Load
MKWI40-48D15 Efficiency vs Load Current
®
MKWI40 SERIES
DC/DC CONVERTER 40W, Highest Power Density
Notes
1
Specifications typical at Ta=+25℃, resistive load, nominal input voltage and 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 20 MHz, measured with a 1μF M/C and a 10μF T/C.
4
All DC/DC converters should be externally fused at the front end for protection.
5
Other input and output voltage may be available, please contact factory.
6
To order the converter with heatsink, please add a suffix –HS (e.g.MKWI40-12S05-HS) to order code.
7
To order the converter without Remote On/Off function, please add a suffix -N (e.g.MKWI40-12S05-N) to order code.
8
That “natural convection” is about 20LFM but is not equal to still air (0 LFM).
9
Specifications subject to change without notice.
Package Specifications
Mechanical Dimensions
Pin Connections
1
1.00 [ 0.04]
2
3.6 [0.14]
Bottom View
50.8 [2.00]
3
5.08
[0.20]
45.72 [1.80]
10.16
[0.40]
1.1 [0.04]
5
6
Pin
Single Output
Dual Output
1
+Vin
+Vin
2
-Vin
-Vin
3
Remote On/Off
Remote On/Off
4
+Vout
+Vout
5
-Vout
Common
6
Trim
-Vout
►All
4
dimensions in mm (inches)
►Tolerance: X.X±0.25
10.16
[0.40]
10.16
[0.40]
2.54
[0.10]
5.5
[0.22]
25.4 [1.00]
11.0
[0.43]
(X.XX±0.01)
X.XX±0.13 ( X.XXX±0.005)
► Pin
diameter  1.0 ±0.05 (0.04±0.002)
Physical Characteristics
Case Size
:
50.8x25.4x11mm (2.0x1.0x0.43 inches)
Case Material
:
Aluminium Alloy, Black Anodized Coating
Base Material
:
FR4 PCB (flammability to UL 94V-0 rated)
Pin Material
:
Copper Alloy with Gold Plate Over Nickel Underplate
Weight
:
30g
Heatsink (Option –HS)
23.0 [0.91]
Physical Characteristics
18.0 [0.71]Max
Heatsink Material
:
Aluminum
Finish
:
Black Anodized Coating
Weight
:
9g
►The
advantages of adding a heatsink are:
1. To help heat dissipation and increase the stability
31.0 [1.22]Max
Heat-sink
and reliability of DC/DC converters at high
Thermal pad
operating temperature atmosphere.
Clamp
Converter
2. To upgrade the operating temperature of DC/DC
converters, please refer to Derating Curve.
E-mail:[email protected]
2012/04/20 REV:4
Tel:886-6-2923150
Page 6 of 8
®
MKWI40 SERIES
DC/DC CONVERTER 40W, Highest Power Density
EMI-Filter to meet EN 55022, class A; FCC part 15 ,level A
Conducted and radiated emissions EN55022 Class A
Part No.
C1
C2&C3
MKWI40-24SXX
4.7μF/50V 1812 MLCC
1000pF/2KV 1808 MLCC
MKWI40-48SXX
2.2μF/100V 1812 MLCC
1000pF/2KV 1808 MLCC
Part No.
C1
C2&C4
MKWI40-24DXX
4.7μF/50V 1812 MLCC
1000pF/2KV 1808 MLCC
MKWI40-48DXX
2.2μF/100V 1812 MLCC
1000pF/2KV 1808 MLCC
External Output Trimming
Output can be externally trimmed by using the method shown below
MKWI40-XXS033 Trim Table
Trim down
1
2
Vout=
Vox0.99
Vox0.98
Rd=
63.59
30.28
3
Vox0.97
18.19
4
Vox0.96
11.95
5
Vox0.95
8.13
6
Vox0.94
5.56
7
Vox0.93
3.70
8
Vox0.92
2.31
9
Vox0.91
1.21
10
Vox0.90
0.34
%
Volts
KOhms
Trim up
1
Vout=
Vox1.01
Ru=
70.50
MKWI40-XXS05 Trim Table
Trim down
1
Vout=
Vox0.99
Rd=
45.53
2
Vox1.02
29.28
3
Vox1.03
16.87
4
Vox1.04
10.90
5
Vox1.05
7.38
6
Vox1.06
5.06
7
Vox1.07
3.42
8
Vox1.08
2.20
9
Vox1.09
1.25
10
Vox1.10
0.49
%
Volts
KOhms
2
Vox0.98
20.61
3
Vox0.97
12.31
4
Vox0.96
8.15
5
Vox0.95
5.66
6
Vox0.94
4.00
7
Vox0.93
2.81
8
Vox0.92
1.92
9
Vox0.91
1.23
10
Vox0.90
0.68
%
Volts
KOhms
Trim up
1
Vout=
Vox1.01
Ru=
36.57
MKWI40-XXS12 Trim Table
Trim down
1
Vout=
Vox0.99
Rd=
394.50
2
Vox1.02
16.58
3
Vox1.03
9.92
4
Vox1.04
6.59
5
Vox1.05
4.59
6
Vox1.06
3.25
7
Vox1.07
2.30
8
Vox1.08
1.59
9
Vox1.09
1.03
10
Vox1.10
0.59
%
Volts
KOhms
2
Vox0.98
179.74
3
Vox0.97
106.08
4
Vox0.96
68.86
5
Vox0.95
46.39
6
Vox0.94
31.36
7
Vox0.93
20.60
8
Vox0.92
12.51
9
Vox0.91
6.21
10
Vox0.90
1.17
%
Volts
KOhms
Trim up
1
Vout=
Vox1.01
Ru=
368.92
MKWI40-XXS15 Trim Table
Trim down
1
Vout=
Vox0.99
Rd=
572.67
2
Vox1.02
161.92
3
Vox1.03
94.97
4
Vox1.04
61.86
5
Vox1.05
42.12
6
Vox1.06
29.00
7
Vox1.07
19.66
8
Vox1.08
12.66
9
Vox1.09
7.23
10
Vox1.10
2.89
%
Volts
KOhms
2
Vox0.98
248.63
3
Vox0.97
145.60
4
Vox0.96
94.97
5
Vox0.95
64.87
6
Vox0.94
44.92
7
Vox0.93
30.72
8
Vox0.92
20.10
9
Vox0.91
11.86
10
Vox0.90
5.28
%
Volts
KOhms
2
Vox1.02
182.12
3
Vox1.03
108.73
4
Vox1.04
71.43
5
Vox1.05
48.85
6
Vox1.06
33.71
7
Vox1.07
22.86
8
Vox1.08
14.69
9
Vox1.09
8.33
10
Vox1.10
3.23
%
Volts
KOhms
Trim up
Vout=
Ru=
1
Vox1.01
392.98
E-mail:[email protected]
2012/04/20 REV:4
Tel:886-6-2923150
Page 7 of 8
®
MKWI40 SERIES
DC/DC CONVERTER 40W, Highest Power Density
Test Setup
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with a inductor Lin (4.7μH) and Cin (220μF, ESR < 1.0Ω 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.
To Oscilloscope
+
+
Battery
+Vin
Lin
DC / DC
Converter
Current
Probe
Cin
+Out
-Vin
Load
-Out
Peak-to-Peak Output Noise Measurement Test
Use a 1μF ceramic capacitor and a 10μF tantalum 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.
+Vin
+Out
Copper Strip
Single Output
DC / DC
Converter
-Vin
Cout
-Out
Scope
Resistive
Load
+Out
Dual Output
DC / DC
Converter
Com.
-Vin
Copper Strip
Copper Strip
+Vin
Scope
Cout
Resistive
Load
Copper Strip
Cout
-Out
Scope
Copper Strip
Technical Notes
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 1.2V. A logic high is 4.7V to 12V. The maximum sink current at the on/off terminal (Pin 3) during a logic low is -100μA. The maximum allowable
leakage current of a switch connected to the on/off terminal (Pin 3) at logic high (2.5V to 100V) is 5μA.
Overcurrent Protection
To provide hiccup mode protection in a fault (output overload) condition, the unit is equipped with internal current limiting circuitry and can endure overload for an
unlimited duration.
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
Ω at 100 KHz) capacitor of a 10μF for the 24V and 48V devices.
+
DC Power
Source
+Vin
+
+Out
DC / DC
Converter
Load
Cin
-
-Vin
-Out
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 4.7μF capacitors at the output.
+
+Vin
DC Power
Source
-
+Out
Single Output
DC / DC
Converter
-Vin
+
Cout
Load
-Out
+Vin
DC Power
Source
-
+Out
Dual Output
DC / DC
Com.
Converter
-Vin
-Out
Cout
Load
Load
Cout
Maximum Capacitive Load
The MKWI40 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. 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℃. The derating curves are determined
from measurements obtained in a test setup.
Position of air velocity
probe and thermocouple
15mm / 0.6in
50mm / 2in
Air Flow
DUT
18, Sin Sin Road, An-Ping Industrial District, Tainan 702, Taiwan
Tel: 886-6-2923150 Fax: 886-6-2923149 E-mail: [email protected]
Minmax Technology Co., Ltd.
2012/04/20 REV:4
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