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LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
FEATURES
● I/O Isolation 1500VDC
● MTBF > 1,000,000 Hours
● Industry Standard Pinout
● High Efficiency up to 88%
● CSA1950 Safety Approval
● 2:1 Wide Input Voltage Range
● Complies with EN55022 Class A
● Short Circuit and Over Voltage Protection
SPECIFICATIONS: LANK 10W Series
All specifications are based on 25oC, 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
Max
Unit
INPUT (Vin)
Input Voltage Range
Start Voltage
Under Voltage Shutdown
Input Surge Voltage (1000ms)
Reverse Polarity Input Current
Reflected Ripple Current
Short Circuit Input Power
Input Filter
OUTPUT (Vo)
Output Voltage Range
Output Voltage Accuracy
Output Voltage Balance
Load Regulation
Load Regulation (2.5V output only)
Line Regulation
Output Power
Output Current Range
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Transient Recovery Time
Transient Response Deviation
Temperature Coefficient
PROTECTION
Over Power Protection
Short Circuit Protection
Input Fuse Recommendation
GENERAL
Efficiency
Switching Frequency
Isolation Voltage Rated
Isolation Voltage Test
Isolation Resistance
Isolation Capacitance
Maximum Capacitive Load
Internal Power Dissipation
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
12V input models
24V input models
48V input models
All models
9
18
36
7
14
30
-0.7
-0.7
-0.7
All models
All models
12
24
48
8
16
33
18
36
75
9
18
36
8.5
17
34
25
50
100
0.5
See Table
2500
Pi Filter
See Table
±0.6
±1.2
±0.5
±2.0
±0.5
±1.2
±0.7
±1.5
±0.3
±1.0
10
See Table
50
85
100
15
250
500
±3
±5
±0.01
±0.02
Dual Output, Balanced Loads
Io = 10% to 100%
Io = 10% to 100%
Vin = Min to Max
Over Line, Load, and Temperature
25% Load Step Change
25% Load Step Change
110
12V input models
24V input models
48V input models
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
mW
%
%
%
%
%
W
mVpk-pk
mVpk-pk
mVrms
μs
%
%/°C
150
180
%
Continuous
2000mA Slow-Blow Type
1000mA Slow-Blow Type
500mA Slow-Blow Type
See Table
400
60 seconds
Flash Tested for 1 second
500VDC
100KHz, 1V
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
A
1500
1650
1000
1000
1200
See Table
2500
KHz
VDC
VDC
MΩ
pF
mW
LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
SPECIFICATION (CONTINUED)
TEST CONDITIONS
ENVIRONMENTAL
Operating Temperature (Ambient)
Operating Temperature (Case)
Storage Temperature
Lead Temperature
Humidity
Cooling
MTBF
PHYSICAL
Weight
Dimensions
Case Material
Min
-40
-40
-40
1.5mm from case for 10 seconds
MIL-HDBK-217F @ 25°C, Ground Benign
Nom
Max
+60
+90
+125
260
95
Free air convection
1,000,000 Hours
Unit
°C
°C
°C
°C
%
17.3 grams
31.8(L) x 20.3(W) x 10.2(H) mm
Metal with non-conductive baseplate
OUTPUT VOLTAGE / CURRENT RATING CHART
Model Number
LANK1233W10
LANK1205W10
LANK1251W10
LANK1212W10
LANK1215W10
LANK1212DW10
LANK1215DW10
LANK2425W10
LANK2433W10
LANK2405W10
LANK2451W10
LANK2412W10
LANK2415W10
LANK2412DW10
LANK2415DW10
LANK4825W10
LANK4833W10
LANK4805W10
LANK4851W10
LANK4812W10
LANK4815W10
LANK4812DW10
LANK4815DW10
Input Voltage
12 VDC
(9 – 18 VDC)
24 VDC
(18 – 36 VDC)
48 VDC
(36 – 75 VDC)
Output
Voltage
3.3 VDC
5 VDC
5.1 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
2.5 VDC
3.3 VDC
5 VDC
5.1 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
2.5 VDC
3.3 VDC
5 VDC
5.1 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
Output Current
Input Current (Typ)
Min
Max
No Load
300mA
200mA
200mA
83mA
66.6mA
±42mA
±33mA
300mA
300mA
200mA
200mA
83mA
66.6mA
±42mA
±33mA
300mA
300mA
200mA
200mA
83mA
66.6mA
±42mA
±33mA
3000mA
2000mA
2000mA
833mA
666mA
±416mA
±333mA
3000mA
3000mA
2000mA
2000mA
833mA
666mA
±416mA
±333mA
3000mA
3000mA
2000mA
2000mA
833mA
666mA
±416mA
±333mA
40mA
20mA
10mA
Max Load
1006mA
1004mA
1024mA
957mA
968mA
957mA
968mA
377mA
485mA
479mA
489mA
479mA
478mA
473mA
478mA
188mA
243mA
239mA
244mA
240mA
239mA
236mA
243mA
Reflected Ripple Efficiency Max Capacitive
Current (Typ)
(Typ)
Load
82%
2200μF
83%
2200μF
83%
2200μF
60mA
87%
820μF
86%
470μF
87%
220μF
86%
150μF
83%
2200μF
85%
2200μF
87%
2200μF
87%
2200μF
40mA
87%
820μF
87%
470μF
87%
220μF
87%
150μF
83%
2200μF
85%
2200μF
87%
2200μF
87%
2200μF
40mA
87%
820μF
87%
470μF
87%
220μF
87%
150μF
NOTES
1. Specifications typical at +25°C, 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 of 75% to 100%.
3. Ripple and noise measured at 20MHz bandwidth.
4. The LANK 10W Series requires a minimum load on the output to maintain specified regulation. Operation under
no-load conditions will not damage these devices, however they may not meet all listed specifications.
5. All DC/DC converters should be externally fused on the front end for protection.
6. Other input and output voltages may be available, please contact factory.
7. Specifications subject to change without notice.
*Due to advances in technology, specifications subject to change without notice.
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
BLOCK DIAGRAMS
Input Voltage Transient Rating
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
MECHANICAL DRAWING
Connecting Pin Patterns
Top View (2.54mm/0.1 inch grids)
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
Pin Single Output Dual Output
2
-Vin
-Vin
3
-Vin
-Vin
9
No Pin
Common
11
NC
-Vout
14
+Vout
+Vout
16
-Vout
Common
22
+Vin
+Vin
23
+Vin
+Vin
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
DESIGN & FEATURE CONSIDERATONS
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.
By using a good quality low Equivalent Series Resistance (ESR < 1.0Ω at 100kHz) capacitor of 12μF for the 12V
input devices, a 4.7μF for the 24V input devices, and a 2.2μF for the 48V input devices. A capacitor mounted
close to the power module helps ensure stability of the unit.
Maximum Capacitive Load
The LANK 10W Series has a limitation of maximum connected capacitance on the output. The power module
may operate in current limiting mode during start-up, affecting the ramp-up and the startup time. The maximum
capacitance can be found in the “Output Voltage / Current Rating Chart.”
Over Current Protection
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.
Over Voltage Protection
The Output over voltage 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 over voltage.
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 95°C. The derating curves are determined from
measurements obtained in an experimental apparatus.
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
Derating Curve
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
TEST CONFIGURATIONS
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with an inductor Lin (4.7uH) and Cin (220uF, 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.
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 0-20MHz. Position the
load between 50mm and 75mm from the DC/DC Converter.
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
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 3.3uF capacitors at the output.
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
LANK 10W Series
2:1 Wide Input Range
Single and Dual Output
10 Watt DC/DC Converter
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. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797