Wall MSKW48D12W5 5 watt dc/dc converter Datasheet

Rev A
MSKW Series
5 Watt DC/DC Converter
Single and Dual Outputs
2:1 Wide Input Voltage Range
FEATURES
DESCRIPTION
● SMT Technology
● High Power Density
● Efficiency up to 85%
● 1500VDC I/O Isolation
● Short Circuit Protection
● Remote ON/OFF Control
● MTBF > 1,000,000 Hours
● Industry Standard Pin-out
● 2:1 Wide Input Voltage Range
● EMI Complies with EN55022 Class A
● Operating Temperature: -40°C to +71°C
The MSKW series of DC/DC converters provide a maximum of 5 watts in a
“gull-wing” SMT package. These converters operate over 2:1 wide input
voltage ranges of 9-18, 18-36, or 36-75VDC. This series also has single
output voltages of 3.3, 5, 12, and 15VDC and dual output voltages of ±5,
±12, and ±15VDC. These converters have a typical full load efficiency of
85%, remote ON/OFF, and continuous short circuit protection. The
-40°C~+71°C operating temperature make these converters ideal for data
communication equipment, mobile battery driven equipment, process/machine
control equipment, telecommunication equipment, computer peripheral systems,
distributed power systems, mixed analog/digital subsystems, and industrial robot systems. The
EN55022 Class A conducted noise compliance minimizes design time, cost, and eliminates the need
for external filter components.
SPECIFICATIONS: MSKW Series
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Nom
12V nominal input models
24V nominal input models
48V nominal input models
12V nominal input models
24V nominal input models
48V nominal input models
12V nominal input models
24V nominal input models
48V nominal input models
12V nominal input models
24V nominal input models
48V nominal input models
All models
All models
9
18
36
7.5
14
30
6.5
13
28
-0.7
-0.7
-0.7
12
24
48
8
16
33
7
15
31
Max
Unit
INPUT (Vin)
Input Voltage Range
Start Voltage
Under Voltage Shutdown
Input Surge Voltage (1000ms)
Reverse Polarity Input Current
Input Filter
Reflected Ripple Current
Short Circuit Input Power
OUTPUT (Vo)
Output Voltage
Output Voltage Accuracy
Output Voltage Balance
Load Regulation
Line Regulation
Output Power
Output Current
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Transient Response Deviation
Transient Recovery Time
REMOTE ON/OFF CONTROL
Supply On
Supply Off
Device Standby Input Current
Control Input Current (ON)
Control Input Current (OFF)
Control Common
PROTECTION
Short Circuit Protection
Over Power Protection
Input Fuse Recommendation
GENERAL
Efficiency
Switching Frequency
Isolation Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Internal Power Dissipation
Max. Capacitive Load
All models
See Rating Chart
±0.5
±1.0
±0.5
±2.0
±0.3
±1.0
±0.1
±0.3
5
See Rating Chart
50
85
100
15
±2
±6
250
500
Dual Output, Balanced Loads
Io = 20% to 100%
Vin = min. to max.
Over Line, Over Load, and Over Temperature
25% Load Step Change
25% Load Step Change
Vin = min to max
Vin = min to max
12V nominal input models
24V nominal input models
48V nominal input models
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
VDC
VDC
VDC
VDC
A
mW
%
%
%
W
mVpk-pk
mVpk-pk
mVrms
%
µs
2.5 to 5.5VDC or open circuit
-0.7
0.8
VDC
10
mA
-200
µA
-300
µA
Referenced to negative input
115
60 seconds
Flash Test for 1 second
500VDC
100KHz, 1V
18
36
75
9
18
36
8
17
34
25
50
100
1
Pi Filter
See Rating Chart
1000
3000
200
1500
1650
1000
continuous
140
165
1500mA slow-blow type
700mA slow-blow type
350mA slow-blow type
See Rating Chart
260
350
650
750
2500
See Rating Chart
%
KHz
VDC
VDC
MΩ
pF
mW
MSKW Series
5 Watt DC/DC Converter
Single and Dual Outputs
2:1 Wide Input Voltage Range
Rev A
SPECIFICATIONS (CONTINUED)
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
ENVIRONMENTAL
Operating Temperature (Ambient)
Operating Temperature (Case)
Storage Temperature
Lead Temperature
Humidity
Cooling
Temperature Coefficient
Moisture Sensitivity Level (MSL) Temperature
MTBF
Conducted EMI
PHYSICAL
Weight
Min
-40
-40
-40
1.5mm from case for 10 seconds
IPC/JEDEC J-STD-20
MIL-HDBK-217F @ 25°C, Ground Benign
Nom
Max
Unit
+71
+90
+125
260
95
Free air convection
±0.01
±0.02
Level 2
1000
°C
°C
°C
°C
%
%/°C
Khours
EN55022 Class A
14 grams
1.31 x 0.81 x 0.40 inches
33.4 x 20.6 x 10.2 mm
Non-conductive black plastic
UL94V-0
Dimensions (L x W x H)
Case Material
Flammability
OUTPUT VOLTAGE / CURRENT RATING CHARTS
SINGLE OUTPUT MODELS
Model Number
MSKW12S33W4
MSKW12S5W5
MSKW12S12W5
MSKW12S15W5
MSKW24S33W4
MSKW24S5W5
MSKW24S12W5
MSKW24S15W5
MSKW48S33W4
MSKW48S5W5
MSKW48S12W5
MSKW48S15W5
Input Voltage
12 VDC
(9 ~ 18 VDC)
24 VDC
(18 ~ 36 VDC)
48 VDC
(36 ~ 75 VDC)
Output
Voltage
3.3 VDC
5 VDC
12 VDC
15 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
Output Current
Min
Max
120mA
1200mA
100mA
1000mA
41.7mA
417mA
33.3mA
333mA
120mA
1200mA
100mA
1000mA
41.7mA
417mA
33.3mA
333mA
120mA
1200mA
100mA
1000mA
41.7mA
417mA
33.3mA
333mA
Input Current
No Load Max Load
434mA
521mA
45mA
502mA
502mA
212mA
254mA
15mA
245mA
245mA
106mA
127mA
6mA
123mA
122mA
Reflected
Ripple Current
25mA
15mA
10mA
Efficiency (Typ)
Maximum
Capacitive Load
76%
80%
83%
83%
78%
82%
85%
85%
78%
82%
85%
85%
680µF
680µF
680µF
680µF
680µF
680µF
680µF
680µF
680µF
680µF
680µF
680µF
Efficiency (Typ)
Maximum
Capacitive Load
80%
83%
83%
82%
85%
85%
82%
85%
85%
100µF
100µF
100µF
100µF
100µF
100µF
100µF
100µF
100µF
DUAL OUTPUT MODELS
Model Number
MSKW12D5W5
MSKW12D12W5
MSKW12D15W5
MSKW24D5W5
MSKW24D12W5
MSKW24D15W5
MSKW48D5W5
MSKW48D12W5
MSKW48D15W5
Input Voltage
12 VDC
(9 ~ 18 VDC)
24 VDC
(18 ~ 36 VDC)
48 VDC
(36 ~ 75 VDC)
Output
Voltage
±5 VDC
±12 VDC
±15 VDC
±5 VDC
±12 VDC
±15 VDC
±5 VDC
±12 VDC
±15 VDC
Output Current
Min
Max
±50mA
±500mA
±20.8mA ±208mA
±16.7mA ±167mA
±50mA
±500mA
±20.8mA ±208mA
±16.7mA ±167mA
±50mA
±500mA
±20.8mA ±208mA
±16.7mA ±167mA
Input Current
No Load Max Load
521mA
45mA
501mA
503mA
254mA
15mA
245mA
246mA
127mA
6mA
122mA
123mA
Reflected
Ripple Current
25mA
15mA
10mA
NOTES
1. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%.
2. The MSKW series requires a minimum output loading to maintain specified regulations. Operation under no-load conditions will not
damage these devices, however they may not meet all listed specifications.
3. All DC/DC converters should be externally fused at the front end for protection.
4. Other input and output voltages may be available, please contact factory.
5. It is not recommended to use the water-washing process on SMT units.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Rev A
BLOCK DIAGRAMS
Single Output
Dual Output
INPUT VOLTAGE TRANSIENT RATING
DERATING CURVE
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
MSKW Series
5 Watt DC/DC Converter
Single and Dual Outputs
2:1 Wide Input Voltage Range
MSKW Series
5 Watt DC/DC Converter
Single and Dual Outputs
2:1 Wide Input Voltage Range
Rev A
Efficiency vs Input Voltage (Single Output)
Efficiency vs Input Voltage (Dual Output)
Efficiency vs Output Load (Single Output)
Efficiency vs Output Load (Dual Output)
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
MSKW Series
5 Watt DC/DC Converter
Single and Dual Outputs
2:1 Wide Input Voltage Range
Rev A
MECHANICAL DRAWING
CONNECTING PIN PATTERNS
Top View (2.54mm / 0.1 inch grids)
Unit: mm [inches]
1. Tolerance: X.X±0.25 [X.XX±0.01]
X.XX±0.13 [X.XXX±0.005]
2. Pin: ±0.05 [±0.002]
PIN CONNECTIONS
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
NC: No Connection
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
MSKW Series
5 Watt DC/DC Converter
Single and Dual Outputs
2:1 Wide Input Voltage Range
Rev A
DESIGN & FEATURE CONSIDERATONS
Over Current Protection
To provide protection in a fault (output over load) 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 to its specified range.
Input Source / Remote On/Off
Positive logic remote on/off turns the module ON during a logic high voltage on the remote on/off pin, and turns the module
OFF during a logic low voltage on the remote on/off pin. 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 the on/off terminal during a logic low is 300µA. The maximum sink current of the
switch at the on/off terminal = 2.5 to 5.5V is 200µA or open.
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. A 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 < 1.0Ω at 100KHz)
capacitor of 3.3µF for the 12V input models and a 2.2µF for the 24V and 48V input models.
+
+Vin
+
DC Power
Source
+Out
DC / DC
Converter
Load
Cin
-
-Vin
-Out
Maximum Capacitive Load
The MSKW series has a limit 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 optimal performance we recommend
100µF maximum capacitive load for dual outputs and 680µF capacitive load for single outputs. The maximum capacitance
can be found in the Output Voltage / Current Rating Chart.
TEST CONFIGURATIONS
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with an inductor Lin (4.7µH) and Cin (220µF, ESR < 1.0Ω at 100KHz) to simulate
source impedance.
To Oscilloscope
+
Battery
+
+Vin
Lin
Cin
Current
Probe
+Out
DC / DC
Converter
-Vin
Load
-Out
Capacitor Cin offsets possible battery impedance.
Current ripple is measured at the input terminals of the module. Measurement bandwidth is 0 ~ 500KHz.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
MSKW Series
5 Watt DC/DC Converter
Single and Dual Outputs
2:1 Wide Input Voltage Range
Rev A
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47µF ceramic capacitor.
Scope measurement should be made by using a BNC socket; measurement bandwidth is 0 ~ 20MHz. Position the load
between 50mm and 75mm from the DC/DC Converter.
+Vin
+Out
Copper Strip
Single Output
DC / DC
Converter
-Vin
Cout
+Vin
Resistive
Scope
Load
-Out
+Out
Dual Output
DC / DC
Converter
Com.
-Vin
-Out
Copper Strip
Cout
Scope
Cout
Scope
Resistive
Load
Output Ripple Reduction
A good quality low ESR capacitor placed as close as possible across the load will give the best ripple and noise performance.
To reduce output ripple, it is recommended to use 3.3µF capacitors at the output.
+
+Vin
Single Output
DC / DC
Converter
DC Power
Source
-
+
+Out
-Vin
+Vin
DC Power
Source
Cout
Load
-
-Out
+Out
Dual Output
DC / DC
Com.
Converter
-Vin
-Out
Cout
Load
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
50mm / 2in
15mm / 0.6in
Air Flow
DUT
COMPANY INFORMATION:
Wall Industries, Inc. has created custom and modified units for over 40 years. Our in-house research and development
engineers will provide a solution that exceeds your performance requirements on time and on budget. Our ISO9001-2000
certification is just one example of our commitment to producing a high quality, well-documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working
closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to
provide ongoing support for your project above and beyond the design and production phases. Give us a call today to
discuss your future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
(603)778-2300
(888)587-9255
(603)778-9797
[email protected]
www.wallindustries.com
5 Watson Brook Rd.
Exeter, NH 03833
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
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