MSKW2000 Series
5W 2:1 Wide Input Range SMD, Single & Dual Output DC/DC Converters
Key Features
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1500
VDC
Low Profile
SMD
Remote on/off
I/O Isolation
Efficiency up to 85%
High Power Density
2:1 Input Range
I / O Isolation 1500VDC
Remote on/off Control
SMT Technology
Industry Standard Pinout
Short Circuit Protection
EMI Complies With EN55022 Class A
MTBF > 1,000,000 Hours
EMI
2:1
EN55022
Wide Range
Minmax's MSKW2000-Series are in “ gull-wing” SMT package. The series consists of 21 models with input voltage ranges of
9-18VDC, 18-36VDC and 36-75VDC which provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, {5V, {12V and {15VDC.
The -40] to +71] operating temperature range makes it ideal for 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.
The modules have a maximum power rating of 5W and a typical full-load efficiency of 85%, continuous short circuit,Remote on/off
EN55022 Class A conducted noise compliance minimize design-in time, cost and eliminate the need for external filtering.
Absolute Maximum Ratings
Parameter
Environmental Specifications
Min.
Max.
Unit
12VDC Input Models
Input Surge Voltage
24VDC Input Models
( 1000 mS )
48VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
-0.7
-0.7
-0.7
---
25
50
100
260
VDC
VDC
VDC
]
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Internal Power Dissipation
---
2,500
mW
Cooling
Conducted EMI
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
1
MINMAX
Parameter
Conditions
Min.
Max.
Unit
Ambient
Case
-40
-40
-40
---
+71
+90
+125
95
]
]
]
%
Free-Air Convection
EN55022 Class A
Leadfree Reflow Solder Process as per IPC/JEDEC
J-STD-020C peak temp. 245C/10 sec.
REV:5 2008/10
MSKW2000 Series
Model Selection Guide
Model
Number
MSKW2021
MSKW2022
MSKW2023
MSKW2024
MSKW2025
MSKW2026
MSKW2027
MSKW2031
MSKW2032
MSKW2033
MSKW2034
MSKW2035
MSKW2036
MSKW2037
MSKW2041
MSKW2042
MSKW2043
MSKW2044
MSKW2045
MSKW2046
MSKW2047
Input
Voltage
Output
Voltage
VDC
VDC
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
12
( 9 ~ 18 )
24
( 18 ~ 36 )
48
( 36 ~ 75 )
Output Current
Max.
mA
1200
1000
417
333
{500
{208
{167
1200
1000
417
333
{500
{208
{167
1200
1000
417
333
{500
{208
{167
Min.
mA
120
100
41.7
33.3
{50
{20.8
{16.7
120
100
41.7
33.3
{50
{20.8
{16.7
120
100
41.7
33.3
{50
{20.8
{16.7
Input Current
@Max. Load
mA (Typ.)
434
521
502
502
521
501
503
212
254
245
245
254
245
246
106
127
123
122
127
122
123
Reflected
Ripple
Current
@No Load
mA (Typ.)
mA (Typ.)
45
25
15
15
6
10
Efficiency
@Max. Load
% (Typ.)
76
80
83
83
80
83
83
78
82
85
85
82
85
85
78
82
85
85
82
85
85
Capacitive Load
Models by Vout
Maximum Capacitive Load
3.3V
5V
12V
15V
{5V #
{12V #
{15V #
Unit
680
680
680
680
100
100
100
uF
# For each output
Input Fuse Selection Guide
12V Input Models
24V Input Models
48V Input Models
1500mA Slow - Blow Type
700mA Slow - Blow Type
350mA Slow - Blow Type
Input Specifications
Parameter
Start Voltage
Under Voltage Shutdown
Model
Min.
Typ.
Max.
12V Input Models
7.5
8
9
24V Input Models
14
16
18
48V Input Models
30
33
36
12V Input Models
6.5
7
8
24V Input Models
13
15
17
48V Input Models
28
31
34
---
---
1
A
---
1000
3000
mW
Reverse Polarity Input Current
Short Circuit Input Power
All Models
Input Filter
REV:5 2008/10
Unit
VDC
Pi Filter
MINMAX
2
MSKW2000 Series
Output Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
---
{0.5
{1.0
%
Dual Output, Balance Loads
---
{0.5
{2.0
%
Line Regulation
Vin=Min. to Max.
---
{0.1
{0.3
%
Load Regulation
Io=20% to 100%
---
{0.3
{1.0
%
---
50
85
mV P-P
Output Voltage Accuracy
Output Voltage Balance
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
---
---
100
mV P-P
Ripple & Noise (20MHz)
---
---
15
mV rms.
Over Power Protection
115
140
165
%
Transient Recovery Time
---
250
500
uS
---
{2
{6
%
---
{0.01
{0.02
%/]
Transient Response Deviation
Over Line, Load & Temp
25% Load Step Change
Temperature Coefficient
Continuous
Output Short Circuit
General Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
Isolation Voltage Rated
60 Seconds
1500
---
---
VDC
Isolation Voltage Test
Flash Tested for 1 Second
1650
---
---
VDC
Isolation Resistance
500VDC
1000
---
---
M[
Isolation Capacitance
100KHz,1V
---
650
750
pF
200
260
350
KHz
1000
---
---
K Hours
Max.
Unit
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Moisture Sensitivity Level (MSL)
TEMPERATURE
IPC/JEDEC J-STD-20
LEVEL 2
Remote On/Off Control
Parameter
Conditions
Supply On
Min.
Typ.
2.5 to 5.5 VDC or Open Circuit
Supply off
-0.7
---
0.8
VDC
Device Standby Input Current
---
---
10
mA
Control Input Current ( on )
Vin=Min. to Max.
---
---
-200
uA
Control Input Current ( off )
Vin=Min. to Max.
---
---
-300
uA
Control Common
Referenced to Negative Input
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. Specifications subject to change without notice.
9. It is not recommended to use water-washing processon SMT units.
3
MINMAX
REV:5 2008/10
MSKW2000 Series
Block Diagram
Single Output
+Vin
Dual Output
+Vo
LC
Filter
+Vin
+Vo
LC
Filter
Com.
-Vo
-Vo
-Vin
-Vin
PFM
On/OFF
Isolation
Ref.Amp
On/OFF
PFM
Isolation
Ref.Amp
Input Voltage Transient Rating
150
140
130
48VDC Input Models
120
110
Vin ( VDC )
100
90
80
70
24VDC Input Models
60
50
40
12VDC Input Models
30
20
10
0
10uS
REV:5 2008/10
100uS
1mS
MINMAX
10mS
100mS
4
90
90
80
80
70
70
Efficiency (%)
Efficiency (%)
MSKW2000 Series
60
50
60
50
40
40
30
30
20
20
Low
Low
High
Nom
Nom
Input Voltage (V)
Efficiency vs Input Voltage ( Dual Output )
90
90
80
80
70
70
Efficiency (%)
Efficiency (%)
Efficiency vs Input Voltage ( Dual Output )
60
50
60
50
40
40
30
30
20
20
10
20
60
40
High
Input Voltage (V)
80
100
10
20
40
60
80
100
Load Current(%)
Load Current(%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100
100LFM
400LFM
Natural
convection
200LFM
Output Power (%)
80
60
40
20
0
～
-40
50
60
70
90
80
Ambient Temperature
100
110
]
Derating Curve
5
MINMAX
REV:5 2008/10
MSKW2000 Series
Test Configurations
Maximum Capacitive Load
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.
To Oscilloscope
+
+
+Vin
Lin
Cin
Battery
+Out
DC / DC
Converter
Current
Probe
-Vin
Overcurrent Protection
Load
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.
-Out
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47uF 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.
+Vin
+Out
Single Output
DC / DC
Converter
-Vin
-Out
+Vin
+Out
Dual Output
DC / DC
Converter
Scope
Resistive
Load
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 3.3uF for the 12V input devices and a
2.2uF for the 24V and 48V devices.
Copper Strip
Cout
Scope
Cout
Scope
Resistive
Load
Com.
-Vin
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.
Copper Strip
Cout
The MSKW2000 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 100uF
maximum capacitive load for dual outputs and 680uF
capacitive load for single outputs.
The maximum capacitance can be found in the data sheet.
+
-Out
DC Power
Source
-
Design & Feature Considerations
+Vin
+
+Out
DC / DC
Converter
Load
Cin
-Vin
-Out
Input Source I 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 -0.7V to 0.8V.
A logic high is 2.5V to 5.5V.
The maximum sink current of the switch at on/off terminal
during a logic low is 300 uA.
The maximum sink current of the switch at on/off terminal
= 2.5 to 5.5V is 200uA or open.
REV:5 2008/10
Output Ripple Reduction
MINMAX
6
MSKW2000 Series
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 3.3uF
capacitors at the output.
+
+Vin
+Out
Single Output
DC / DC
Converter
DC Power
Source
Cout
-
-Vin
-Out
+
+Vin
+Out
Dual Output
Com.
DC / DC
Converter
DC Power
Source
-
-Vin
Load
Cout
Load
-Out
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 90° C.
The derating curves are determined from measurements
obtained in an experimental apparatus.
Position of air velocity
probe and thermocouple
15mm / 0.6in
7
50mm / 2in
Air Flow
DUT
MINMAX
REV:5 2008/10
MSKW2000 Series
Mechanical Dimensions
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
15.26 [0.601]
27.94mm
24 23 22
16 15 14 13
1
2
3
25.6 [1.01]
Top
22.6 [0.89]
20.6 [0.81]
3.0mm
9 10 11 12
27.0mm
2.54 [0.100]
2.7 [0.11]
33.4 [1.31]
1.50 [0.059]
10.2 [0.40]
SEATING
PLANE
15.24mm
2.54mm
1.9mm
0 ~4
0.4 [0.01]
Side
0.15
Tolerance
Millimeters
Inches
Pin
X.X{0.25
X.XX{0.13
{0.05
X.XX{0.01
X.XXX{0.005
{0.002
Pin Connections
Physical Characteristics
Pin
Single Output
Dual Output
1
Remote On/Off
Remote On/Off
2
-Vin
-Vin
3
-Vin
-Vin
9
NC
Common
10
NC
NC
11
NC
-Vout
12
NC
NC
13
NC
NC
14
+Vout
+Vout
15
NC
NC
16
-Vout
Common
22
+Vin
+Vin
23
+Vin
+Vin
24
NC
NC
33.4*20.6*10.2 mm
Case Size
:
Case Material
:
Non-Conductive Black Plastic
Weight
:
14g
Flammability
:
UL94V-0
1.31*0.81*0.40 inches
NC: No Connection
REV:5 2008/10
MINMAX
8