MKZI10

®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
FEATURES
►Industrial Standard 2"×1" Package
►Ultra-wide Input Range 9-36VDC, 18-75VDC, 40-160VDC
►I/O Isolation 3000VAC with Reinforced Insulation
►Operating Ambient Temp. Range -40°C to +95°C
►No Min. Load Requirement
►Overload/Voltage and Short Circuit Protection
►Remote On/Off, Output Voltage Trim
►Designed-in Conducted EMI meets EN55022 Class A & FCC
Level A (Pending)
►Vibration and Shock meets EN61373 (Pending)
►Cooling, Dry & Damp Heat Test meet IEC/EN60068-2-1,2,30 (Pending)
►Fire Protection Test meets EN45545-2 (Pending)
►Railway EMC Standard meets EN50121-3-2 (Pending)
►Railway Approval meets EN50155 (IEC60571) (Pending)
►UL/cUL/IEC/EN 62368-1 (60950-1) Safety Approval & CE Marking (Pending)
PRODUCT OVERVIEW
The MINMAX MKZI10 series is a new range of high performance 10W isolated dc-dc converter within encapsulated 2"x1" package which specifically design
for railway applications. There are 18 models available for railway input voltage of either 24(9~36)VDC or 48(18~75)VDC or 72/110(40~160)VDC and tight
output voltage regulation. Further features include over current, over voltage, short circuit protection, remote ON/OFF, output trim and EMI filter meets
EN55022 & FCC Part15 Class A as well. MKZI10 series conform to vibration and thermal shock test meets EN61373, cooling, dry and damp heat test
meets IEC/EN 60068-2-1,2,30 and railway EMC standard EN50121-3-2 and complies also with railway standard EN50155 (IEC60571). MKZI10 series offer
an highly reliable solution for critical applications in railway systems, battery-powered equipment, measure instrumentation and many critical applications.
Model Selection Guide
Model
Number
MKZI10-24S05
MKZI10-24S12
MKZI10-24S15
MKZI10-24S24
MKZI10-24D12
MKZI10-24D15
MKZI10-48S05
MKZI10-48S12
MKZI10-48S15
MKZI10-48S24
MKZI10-48D12
MKZI10-48D15
MKZI10-110S05
MKZI10-110S12
MKZI10-110S15
MKZI10-110S24
MKZI10-110D12
MKZI10-110D15
Input
Voltage
(Range)
Output
Voltage
VDC
VDC
5
12
15
24
±12
±15
5
12
15
24
±12
±15
5
12
15
24
±12
±15
24
( 9 ~ 36 )
48
( 18 ~ 75 )
110
( 40 ~ 160)
Output Current
Input Current
Max.
@Max. Load
@No Load
mA
2000
835
670
417
±417
±335
2000
835
670
417
±417
±335
2000
835
670
417
±417
±335
mA(typ.)
496
485
481
474
485
481
245
240
241
242
234
238
111
107
107
107
106
106
mA(typ.)
25
15
10
Over
Voltage
Protection
Max. capacitive
Load
VDC
6.2
15
18
30
±15
±18
6.2
15
18
30
±15
±18
6.2
15
18
30
±15
±18
μF
2200
330
220
100
150#
100#
2200
330
220
100
150#
100#
2200
330
220
100
150#
100#
@Max. Load
# For each output
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Efficiency
(typ.)
%
84
86
87
88
86
87
85
87
87
86
89
88
82
85
85
85
86
86
®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
Input Specifications
Parameter
Model
24V Input Models
48V Input Models
110V Input Models
24V Input Models
48V Input Models
110V Input Models
24V Input Models
48V Input Models
110V Input Models
Input Surge Voltage (100ms. max)
Start-Up Threshold Voltage
Under Voltage Shutdown
Start Up Time
Input Filter
Min.
-0.7
-0.7
-0.7
---------------
All Models
Typ.
Max.
--50
--100
--170
--9
--18
--40
7.5
--16
--37
--50
--Internal Pi Type
Unit
VDC
mS
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.
3.5V ~ 12V or Open Circuit
0V ~ 1.2V or Short Circuit
----Referenced to Negative Input
---
Typ.
Max.
Unit
0.5
-0.5
-----
mA
mA
2.5
---
mA
Min.
---
Typ.
---
Max.
±1.0
Unit
%Vnom.
---------
±2.0
±0.2
±0.5
±1.0
%
%
%
%
50
100
-----
mV P-P
mV P-P
150
---
mV P-P
---
300
μsec
±3
----150
±5
±0.02
±10
---
%
%/℃
%
%
Output Specifications
Parameter
Output Voltage Setting Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Minimum Load
Ripple & Noise
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
Trim Up / Down Range (See Page 8)
Over Load Protection
Short Circuit Protection
Conditions
Dual Output, Balanced Loads
--Vin=Min. to Max. @ Full Load
--Single Output
--Io=0% to 100%
Dual Output
--No minimum Load Requirement
5Vo
Measured with a
--10μF/25V MLCC
--0-20 MHz 12V,15V, ±12V, ±15Vo
Bandwidth
Measured with a
24Vo
--4.7μF/50V MLCC
--25% Load Step Change (2)
----% of Nominal Output Voltage
--Hiccup
--Hiccup Mode 0.3Hz typ., Automatic Recovery
General Specifications
Parameter
I/O Isolation Voltage
Isolation Voltage Input/Output to case
I/O Isolation Resistance
I/O Isolation Capacitance
Switching Frequency
MTBF(calculated)
Conditions
Reinforced Insulation, Rated For 60 Seconds
Min.
Typ.
Max.
3000
----1500
----500 VDC
1000
----100KHz, 1V
--1500
----280
--MIL-HDBK-217F@25℃ Full Load, Ground Benign
TBD
----UL/cUL 60950-1 recognition (UL certificate), IEC/EN 60950-1(CB-report), EN 50155, IEC 60571
UL/cUL 62368-1 recognition (UL certificate), IEC/EN 62368-1 (CB-report)
Safety Approval (Pending)
E-mail:[email protected]
2016/01/06
P10
Tel:886-6-2923150
Page 2 of 9
Unit
VACrms
VDC
MΩ
pF
KHz
Hours
®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
Environmental Specifications
Parameter
Conditions / Model
Operating Ambient Temperature Range
Natural Convection (8)
Nominal Vin, Load 100% Inom.
(for Power Derating see relative Derating Curves)
Thermal Impedance
Min.
Max.
without Heatsink
with Heatsink
MKZI10-48D12
90
93
MKZI10-24S24, MKZI10-48D15
88
92
MKZI10-24S15, MKZI10-48S12, MKZI10-48S15
MKZI10-24D15
87
90
85
89
MKZI10-48S05, MKZI10-110S12, MKZI10-110S15,
MKZI10-110S24
84
88
MKZI10-24S05
82
86
MKZI10-110S05
78
MKZI10-24S12, MKZI10-48S24, MKZI10-24D12,
MKZI10-110D12, MKZI10-110D15
-40
Unit
℃
83
Natural Convection without Heatsink
12.1
---
℃/W
Natural Convection with Heatsink
9.8
---
℃/W
100LFM Convection without Heatsink
9.2
---
℃/W
100LFM Convection with Heatsink
5.4
---
℃/W
200LFM Convection without Heatsink
7.8
---
℃/W
200LFM Convection with Heatsink
4.5
---
℃/W
400LFM Convection without Heatsink
5.2
---
℃/W
400LFM Convection with Heatsink
3.0
---
℃/W
Case Temperature
---
+105
℃
Storage Temperature Range
-50
+125
℃
95
% rel. H
260
℃
Cooling Test
Compliance to IEC/EN60068-2-1
Dry Heat
Compliance to IEC/EN60068-2-2
Damp Heat
Compliance to IEC/EN60068-2-30
Shock & Vibration Test
Compliance to IEC/EN 61373
Humidity (non condensing)
---
RFI
Six-Sided Shielded, Metal Case
Lead Temperature (1.5mm from case for 10Sec.)
---
EMC Specifications
Parameter
General
EMI
EMS
Standards & Level
Conduction
EN55024
ESD
Radiated immunity
Fast transient(5)
Surge(5)
Conducted immunity
PFMF
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Page 3 of 9
Compliance with EN 50121-3-2 Railway Applications
EN55022, EN55011, FCC part 15
EN61000-4-2 Air ± 8kV, Contact ± 6kV
EN61000-4-3 10V/m
EN61000-4-4 ±2kV
EN61000-4-5 ±2kV
EN61000-4-6 10Vrms
EN61000-4-8 3A/M
Performance
Class A
A
A
A
A
A
A
®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
Power Derating Curve
100
100
Output Power (%)
80
Output Power (%)
Natural
Convection
20LFM
100LFM
60
200LFM
400LFM
40
80
Natural
Convection
20LFM
60
100LFM
40
400LFM
200LFM
20
20
0
0
~
-40
0
20
40
60
~
-40
100 110
80
MKZI10-48D12 Derating Curve without Heatsink
60
80
100 110
C
100
Output Power (%)
Natural
Convection
20LFM
80
Output Power (%)
40
MKZI10-48D12 Derating Curve with Heatsink
100
100LFM
60
200LFM
400LFM
40
80
Natural
Convection
20LFM
60
100LFM
40
400LFM
200LFM
20
20
0
0
~
-40
0
20
40
60
Ambient Temperature
80
~
-40
100 110
0
C
20
40
60
80
100 110
C
Ambient Temperature
MKZI10-24S24,MKZI10-48D15 Derating Curve without Heatsink
MKZI10-24S24,MKZI10-48D15 Derating Curve with Heatsink
100
100
80
80
Natural
Convection
20LFM
60
Output Power (%)
Output Power (%)
20
Ambient Temperature
C
Ambient Temperature
100LFM
200LFM
40
400LFM
20
Natural
Convection
20LFM
60
100LFM
200LFM
40
400LFM
20
0
0
~
-40
0
20
40
60
Ambient Temperature
80
~
100 110
-40
0
C
20
40
60
Ambient Temperature
MKZI10-24S15,MKZI10-48S12, MKZI10-48S15, MKZI10-24D15
Derating Curve without Heatsink
80
100 110
C
MKZI10-24S15,MKZI10-48S12, MKZI10-48S15, MKZI10-24D15
Derating Curve with Heatsink
100
100
80
Natural
Convection
20LFM
60
100LFM
Output Power (%)
Output Power (%)
0
200LFM
400LFM
40
80
Natural
Convection
20LFM
60
100LFM
40
400LFM
200LFM
20
20
0
0
~
-40
0
20
40
60
Ambient Temperature
80
100 110
C
MKZI10-24S12, MKZI10-48S24, MKZI10-24D12, MKZI10-110D12
MKZI10-110D15 Derating Curve without Heatsink
E-mail:[email protected]
2016/01/06
P10
Tel:886-6-2923150
Page 4 of 9
~
-40
0
20
40
60
Ambient Temperature
80
100 110
C
MKZI10-24S12, MKZI10-48S24, MKZI10-24D12, MKZI10-110D12
MKZI10-110D15 Derating Curve with Heatsink
®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
Power Derating Curve
100
80
Natural
Convection
20LFM
60
100LFM
80
Output Power (%)
Output Power (%)
100
200LFM
40
400LFM
60
100LFM
200LFM
40
400LFM
20
20
0
0
~
-40
0
20
40
60
Ambient Temperature
80
~
-40
100 110
20
40
60
Ambient Temperature
100 110
C
100
Natural
Convection
20LFM
60
100LFM
Output Power (%)
80
200LFM
400LFM
40
20
80
Natural
Convection
20LFM
60
100LFM
40
400LFM
200LFM
20
0
0
~
-40
0
20
40
60
Ambient Temperature
80
100 110
~
-40
0
C
20
40
60
80
MKZI10-24S05 Derating Curve without Heatsink
100 110
C
Ambient Temperature
MKZI10-24S05 Derating Curve with Heatsink
100
80
Natural
Convection
20LFM
60
100LFM
Output Power (%)
100
200LFM
400LFM
40
80
Natural
Convection
20LFM
60
100LFM
40
400LFM
200LFM
20
20
0
0
~
-40
0
20
40
60
Ambient Temperature
80
C
MKZI10-110S05 Derating Curve without Heatsink
100 110
~
-40
0
20
40
60
Ambient Temperature
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%.
We recommend to protect the converter by a slow blow fuse in the input supply line.
Other input and output voltage may be available, please contact factory.
To meet EN61000-4-4 & EN61000-4-5 an, external capacitor across the input pins is required. Suggested capacitor: 220μF/400V.
That “natural convection” is about 20LFM but is not equal to still air (0 LFM).
Specifications are subject to change without notice.
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Page 5 of 9
80
C
MKZI10-110S05 Derating Curve with Heatsink
Notes
1
2
3
4
5
6
7
80
MKZI10-48S05, MKZI10-110S12, MKZI10-110S15, MKZI10-110S24
Derating Curve with Heatsink
100
Output Power (%)
0
C
MKZI10-48S05, MKZI10-110S12, MKZI10-110S15, MKZI10-110S24
Derating Curve without Heatsink
Output Power (%)
Natural
Convection
20LFM
100 110
®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
Package Specifications
Mechanical Dimensions
Pin Connections
7.62 5.08
[0.30] [0.20]
3.3 [0.13]
Bottom View
5
6
1.00 [ 0.04]
1
50.8 [2.00]
2
20.32 [0.80]
3
10.16
[0.40]
Pin
Single Output
Dual Output
1
+Vin
+Vin
2
-Vin
-Vin
3
Remote On/Off
Remote On/Off
4
+Vout
+Vout
5
Trim
Common
6
-Vout
-Vout
4
►All dimensions in mm
1.85
[0.07]
►Tolerance: X.X±0.5
10.16
[0.40]
10.16
[0.40]
5.5
[0.22]
2.54
[0.10]
11.0
[0.43]
X.XX±0.25 ( X.XXX±0.01)
►Pin
25.4 [1.00]
(inches)
(X.XX±0.02)
diameter  1.0 ±0.05 (0.04±0.002)
Package Specifications with "A" Pinning (order code suffix A)
Mechanical Dimensions
Pin Connections
1
2
Bottom View
50.8 [2.00]
45.72 [1.80]
1.00 [
3
5.08 5.08
[0.20] [0.20]
0.04]
10.16
[0.40]
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
3.3 [0.13]
1.85
[0.07]
5
6
4
►All dimensions in mm
10.16
[0.40]
10.16
[0.40]
2.54
[0.10]
5.5
[0.22]
25.4 [1.00]
Physical Characteristics
Case Size
:
50.8x25.4x11.0 mm (2.0x1.0x0.43 inches)
Case Material
:
Aluminium Alloy, Black Anodized Coating
Base Material
:
FR4 PCB (flammability to UL 94V-0 rated)
Pin Material
:
Tinned Copper
Potting Material
Weight
:
:
Epoxy (UL94-V0)
TBD
E-mail:[email protected]
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Page 6 of 9
11.0
[0.43]
►Tolerance: X.X±0.5
(inches)
(X.XX±0.02)
X.XX±0.25 ( X.XXX±0.01)
►Pin
diameter  1.0 ±0.05 (0.04±0.002)
®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
Heatsink (Option, –HS)
37.1 [1.46]
Physical Characteristics
Heatsink Material
:
Aluminum
Finish
:
Black Anodized Coating
Weight
:
9g
18.0 [0.71]Max
31.0 [1.22]Max
►The advantages of adding a
Thermal pad
Clamp
Converter
2. To increase operating temperature of the DC/DC converter,
please refer to Derating Curve.
37.1 [1.46]
"A" Pinning Heatsink (Option, –HS)
18.0 [0.71]Max
31.0 [1.22]Max
Heat-sink
Thermal pad
Clamp
Converter
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P10
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Page 7 of 9
heatsink are:
1. To improve heat dissipation and increase the stability and
reliability of the DC/DC converters at high operating
temperatures.
Heat-sink
®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
External Output Trimming
Output can be externally trimmed by using the method shown below
Trim
+Vo
Ru
Trim Up
Trim Down
-Vo
Trim
MKZI10-XXS05 Trim Table
Trim down
1
Vout=
Vox0.99
Rd=
137.88
Trim up
Vout=
Ru=
1
Vox1.01
108.09
MKZI10-XXS12 Trim Table
Trim down
1
Vout=
Vox0.99
Rd=
419.81
Trim up
Vout=
Ru=
1
Vox1.01
344.74
MKZI10-XXS15 Trim Table
Trim down
1
Vout=
Vox0.99
Rd=
602.92
Trim up
Vout=
Ru=
1
Vox1.01
482.88
MKZI10-XXS24 Trim Table
Trim down
1
Vout=
Vox0.99
Rd=
598.97
Trim up
Vout=
Ru=
Rd
1
Vox1.01
486.83
2
Vox0.98
61.93
3
Vox0.97
36.61
4
Vox0.96
23.95
5
Vox0.95
16.35
6
Vox0.94
11.29
7
Vox0.93
7.67
8
Vox0.92
4.96
9
Vox0.91
2.85
10
Vox0.90
1.16
%
Volts
KOhms
2
Vox1.02
48.39
3
Vox1.03
28.49
4
Vox1.04
18.54
5
Vox1.05
12.56
6
Vox1.06
8.58
7
Vox1.07
5.74
8
Vox1.08
3.61
9
Vox1.09
1.95
10
Vox1.10
0.62
%
Volts
KOhms
2
Vox0.98
187.68
3
Vox0.97
110.30
4
Vox0.96
71.61
5
Vox0.95
48.40
6
Vox0.94
32.93
7
Vox0.93
21.87
8
Vox0.92
13.58
9
Vox0.91
7.13
10
Vox0.90
1.98
%
Volts
KOhms
2
Vox1.02
154.37
3
Vox1.03
90.92
4
Vox1.04
59.19
5
Vox1.05
40.15
6
Vox1.06
27.46
7
Vox1.07
18.39
8
Vox1.08
11.59
9
Vox1.09
6.31
10
Vox1.10
2.07
%
Volts
KOhms
2
Vox0.98
269.91
3
Vox0.97
158.91
4
Vox0.96
103.41
5
Vox0.95
70.10
6
Vox0.94
47.90
7
Vox0.93
32.05
8
Vox0.92
20.15
9
Vox0.91
10.90
10
Vox0.90
3.50
%
Volts
KOhms
2
Vox1.02
215.89
3
Vox1.03
126.89
4
Vox1.04
82.40
5
Vox1.05
55.70
6
Vox1.06
37.90
7
Vox1.07
25.18
8
Vox1.08
15.65
9
Vox1.09
8.23
10
Vox1.10
2.30
%
Volts
KOhms
2
Vox0.98
267.93
3
Vox0.97
157.59
4
Vox0.96
102.42
5
Vox0.95
69.31
6
Vox0.94
47.25
7
Vox0.93
31.48
8
Vox0.92
19.66
9
Vox0.91
10.46
10
Vox0.90
3.11
%
Volts
KOhms
2
Vox1.02
217.87
3
Vox1.03
128.21
4
Vox1.04
83.38
5
Vox1.05
56.49
6
Vox1.06
38.56
7
Vox1.07
25.75
8
Vox1.08
16.14
9
Vox1.09
8.67
10
Vox1.10
2.69
%
Volts
KOhms
Order Code Table
Standard
MKZI10-24S05
MKZI10-24S12
MKZI10-24S15
MKZI10-24S24
MKZI10-24D12
MKZI10-24D15
MKZI10-48S05
MKZI10-48S12
MKZI10-48S15
MKZI10-48S24
MKZI10-48D12
MKZI10-48D15
MKZI10-110S05
MKZI10-110S12
MKZI10-110S15
MKZI10-110S24
MKZI10-110D12
MKZI10-110D15
With heatsink
MKZI10-24S05-HS
MKZI10-24S12-HS
MKZI10-24S15-HS
MKZI10-24S24-HS
MKZI10-24D12-HS
MKZI10-24D15-HS
MKZI10-48S05-HS
MKZI10-48S12-HS
MKZI10-48S15-HS
MKZI10-48S24-HS
MKZI10-48D12-HS
MKZI10-48D15-HS
MKZI10-110S05-HS
MKZI10-110S12-HS
MKZI10-110S15-HS
MKZI10-110S24-HS
MKZI10-110D12-HS
MKZI10-110D15-HS
E-mail:[email protected]
2016/01/06
P10
Tel:886-6-2923150
Page 8 of 9
With "A" Pinning
MKZI10-24S05A
MKZI10-24S12A
MKZI10-24S15A
MKZI10-24S24A
MKZI10-24D12A
MKZI10-24D15A
MKZI10-48S05A
MKZI10-48S12A
MKZI10-48S15A
MKZI10-48S24A
MKZI10-48D12A
MKZI10-48D15A
MKZI10-110S05A
MKZI10-110S12A
MKZI10-110S15A
MKZI10-110S24A
MKZI10-110D12A
MKZI10-110D15A
With "A" Pinning & heatsink
MKZI10-24S05A-HS
MKZI10-24S12A-HS
MKZI10-24S15A-HS
MKZI10-24S24A-HS
MKZI10-24D12A-HS
MKZI10-24D15A-HS
MKZI10-48S05A-HS
MKZI10-48S12A-HS
MKZI10-48S15A-HS
MKZI10-48S24A-HS
MKZI10-48D12A-HS
MKZI10-48D15A-HS
MKZI10-110S05A-HS
MKZI10-110S12A-HS
MKZI10-110S15A-HS
MKZI10-110S24A-HS
MKZI10-110D12A-HS
MKZI10-110D15A-HS
®
MKZI10 SERIES
DC/DC CONVERTER 10W, Reinforced Insulation, Railway Standard
Test Setup
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
+Vin
+Out
Copper Strip
Dual Output
DC / DC
Converter
Com.
Copper Strip
-Vin
-Out
Resistive
Load
Copper Strip
Scope
Cout
Resistive
Load
Cout
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 3.5V to 12V. The maximum sink current at the on/off terminal (Pin 3) during a logic low is -100μA.
Overload 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 33μF for the 12V input devices and 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
-
+Out
Single Output
DC / DC
Converter
DC Power
Source
-Vin
+
Cout
DC Power
Source
Load
-Out
-
+ V i n
+ O u t
Dual Output
DC / DC Com.
Converter
- V i n
- O u t
Cout
Load
Load
Cout
Maximum Capacitive Load
The MKZI10 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.
2016/01/06
P10
Page 9 of 9