Data Sheet
October 7, 2013
KW010/015/020/025 (Sixteenth-Brick) Power Modules:
36 –75Vdc Input; 1.2Vdc to 5.0Vdc Output;10A to 25A Output Current
* UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
§ This product is intended for integration into end-use equipment. All of the required procedures of end-use equipment should be followed
** ISO is a registered trademark of the International Organization of Standards Document No: DS04-045 ver. 1.09
PDF name: kw010-015-020-025_ds.pdf
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to RoHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
Delivers up to 25A output current
5V(10A), 3.3V(15A), 2.5V(20A), 1.8V-1.2V(25A)
High efficiency – 91% at 3.3V full load
Small size and low profile:
33.0 mm x 22.9 mm x 8.5 mm
(1.30 in x 0.9 in x 0.335 in)
Industry standard DOSA footprint
-20% to +10% output voltage adjustment trim
Remote On/Off
Remote Sense
No reverse current during output shutdown
Over temperature protection (latching)
Output overcurrent/overvoltage protection
(latching)
Wide operating temperature range (-40°C to 85°C)
Meets the voltage isolation requirements for
ETSI 300-132-2 and complies with and is licensed
for Basic Insulation rating per EN60950-1
UL* 60950-1Recognized, CSA† C22.2 No.
60950-1-03 Certified, and VDE‡ 0805 (IEC60950
3rd Edition) Licensed
CE mark meets 2006/95/EC directive§
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Applications
Distributed power architectures
Wireless networks
Access and optical network Equipment
Enterprise Networks
Latest generation IC’s (DSP, FPGA, ASIC) and
Microprocessor powered applications
Options
Negative Remote On/Off logic
Surface Mount (Tape and Reel, -SR Suffix)
Over current/Over temperature/Over voltage
protections (auto-restart)
Shorter lead trim
Description
The KW (Sixteenth-brick) series power modules are isolated dc-dc converters that operate over a wide input voltage
range of 36 to 75Vdc and provide a single precisely regulated output. The output is fully isolated from the input,
allowing versatile polarity configurations and grounding connections. The modules exhibit high efficiency, typical
efficiency of 91% for 3.3V/15A. These open frame modules are available either in surface-mount (-SR) or in
through-hole (TH) form.
RoHS Compliant
Representative Photo, actual product may vary.
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 2
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are
absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in
excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect the device reliability.
Parameter
Device
Symbol
Min
Max
Unit
Input Voltage
Continuous
All
VIN
-0.3
80
Vdc
Transient (100 ms)
All
VIN,trans
-0.3
100
Vdc
Operating Ambient Temperature
All
TA
-40
85
°C
(see Thermal Considerations section)
Storage Temperature
All
Tstg
-55
125
°C
I/O Isolation voltage (100% Factory Hi-Pot tested)
All
1500
Vdc
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
All
VIN
36
48
75
Vdc
Maximum Input Current
All
IIN,max
1.7
2.0
Adc
(VIN= VIN, min to VIN, max, IO=IO, max)
Input No Load Current
All
IIN,No load
55
mA
(VIN = VIN, nom, IO = 0, module enabled)
Input Stand-by Current
All
IIN,stand-by
5
7
mA
(VIN = VIN, nom, module disabled)
Inrush Transient
All
I2t
0.1
A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN, min to
VIN, max, IO= IOmax ; See Test configuration section)
All
30
mAp-p
Input Ripple Rejection (120Hz)
All
50
60
100
dB
EMC, EN55022
See EMC Considerations section
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to an
integrated part of sophisticated power architectures. To preserve maximum flexibility, internal fusing is not included,
however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies
require a time-delay fuse with a maximum rating of 5 A (see Safety Considerations section). Based on the
information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a
lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information.
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 3
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Output Voltage Set-point
A
VO, set
4.93
5.0
5.08
Vdc
(VIN=VIN, min, IO=IO, max, TA=25°C)
F
VO, set
3.25
3.3
3.35
Vdc
G
VO, set
2.46
2.5
2.54
Vdc
Y
VO, set
1.77
1.8
1.83
Vdc
M
VO, set
1.48
1.5
1.53
Vdc
P
VO, set
1.18
1.2
1.22
Vdc
Output Voltage
All
VO
-3.0
+3.0
% VO, set
(Over all operating input voltage, resistive load,
and temperature conditions until end of life)
Adjustment Range
All
VO,adj
-20.0
+10.0
% VO, set
Selected by an external resistor
Output Regulation
Line (VIN=VIN, min to VIN, max)
A, F, G
0.1
% VO, set
Y, M, P
2
mV
Load (IO=IO, min to IO, max)
A, F, G
0.1
% VO, set
Y, M, P
2
mV
Temperature (Tref=TA, min to TA, max)
All
1.0
% VO, set
Output Ripple and Noise on nominal output
(VIN=VIN, nom ,IO= IO, max , TA=TA, min to TA, max)
RMS (5Hz to 20MHz bandwidth)
A, F, G, Y
25
mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
75
mVpk-pk
RMS (5Hz to 20MHz bandwidth)
M, P
33
mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
100
mVpk-pk
External Capacitance
All
CO, max
0
10,000
μF
Rated Output Current
A
IO, Rated
0
10
Adc
F
IO, Rated
0
15
Adc
G
IO, Rated
0
20
Adc
Y
IO, Rated
0
25
Adc
M
IO, Rated
0
25
Adc
P
IO, Rated
0
25
Adc
Output Current Limit Inception (Hiccup Mode )
All
IO, lim
106
120
146
%IO, Rated
(VO= 90% of VO, set)
Output Short-Circuit Current
All
IO, s/c
3
Arms
(VO≤250mV) ( Hiccup Mode )
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 4
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
Efficiency
A
η
92.0
%
VIN= VIN, nom, TA=25°C
F
η
91.0
%
IO=IO, max , VO= VO,set
G
η
89.0
%
Y
η
87.0
%
M
η
85.0
%
P
η
84.0
%
Switching Frequency
All
fsw
190
200
235
kHz
Dynamic Load Response
(dIo/dt=0.1A/s; VIN = VIN, nom; TA=25°C)
Load Change from Io= 50% to 75% or 25% to
50% of Io,max;
Peak Deviation
All
Vpk
2
% VO, set
Settling Time (Vo<10% peak deviation)
All
ts
200
s
(dIo/dt=1A/s; VIN = VIN, nom; TA=25°C)
Load Change from Io= 50% to 75% or 25% to
50% of Io,max;
Peak Deviation
All
Vpk
5
% VO, set
Settling Time (Vo<10% peak deviation)
All
ts
200
s
Isolation Specifications
Parameter
Device
Symbol
Min
Typ
Max
Unit
Isolation Capacitance
All
Ciso
1000
pF
Isolation Resistance
All
Riso
10
MΩ
I/O Isolation Voltage
All
All
1500
Vdc
General Specifications
Parameter
Device
Min
Typ
Max
Unit
Calculated Reliability Based upon Telcordia SR-332
Issue 2: Method I, Case 3, (IO=80%IO, max, TA=40°C,
Airflow = 200 lfm), 90% confidence
MTBF
F
2,864,101
Hours
FIT
F
349
109/Hours
Powered Random Vibration (VIN=VIN, min, IO=IO, max, TA=25°C, 0 to
5000Hz, 10Grms)
All
90
Minutes
Weight
All
11.3 (0.4)
g (oz.)
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 5
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Device
Symbol
Min
Typ
Max
Unit
Remote On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to VIN- terminal)
Negative Logic: device code suffix “1”
Logic Low = module On, Logic High = module Off
Positive Logic: No device code suffix required
Logic Low = module Off, Logic High = module On
Logic Low - Remote On/Off Current
All
Ion/off
1.0
mA
Logic Low - On/Off Voltage
All
Von/off
-0.7
1.2
V
Logic High Voltage – (Typ = Open Collector)
All
Von/off
5
V
Logic High maximum allowable leakage current
All
Ion/off
10
μA
Turn-On Delay and Rise Times
(IO=IO, max , VIN=VIN, nom, TA = 25 oC)
Case 1: On/Off input is set to Logic Low (Module
ON) and then input power is applied (delay from
instant at which VIN = VIN, min until Vo=10% of Vo,set)
All
Tdelay
―
15
20
msec
Case 2: Input power is applied for at least 1 second
and then the On/Off input is set from OFF to ON (Tdelay =
from instant at which VIN=VIN, min until VO = 10% of VO, set).
All
Tdelay
―
4
10
msec
Output voltage Rise time (time for Vo to rise from 10%
of Vo,set to 90% of Vo, set)
All
Trise
―
8
12
msec
Output voltage Rise time (time for Vo to rise from 10%
of Vo,set to 90% of Vo, set with max ext capacitance)
All
Trise
―
8
12
msec
Output voltage overshoot – Startup
―
3
% VO, set
IO= IO, max; VIN=VIN, min to VIN, max, TA = 25 oC
Remote Sense Range
A, F, G
+10
% VO, set
Y, M, P
0.25
Vdc
Output Overvoltage Protection
A
VO, limit
6.1
7.0
Vdc
F
VO, limit
4.0
4.6
Vdc
G
VO, limit
3.1
3.7
Vdc
Y
VO, limit
2.3
3.2
Vdc
M
VO, limit
2.3
3.2
Vdc
P
VO, limit
2.0
2.8
Vdc
Input Undervoltage Lockout
Turn-on Threshold
All
Vuv/on
35
36
Vdc
Turn-off Threshold
All
Vuv/off
32
33
Vdc
Hysterisis
All
Vhyst
1
Vdc
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 6
Characteristic Curves
The following figures provide typical characteristics for the KW010A0A (5V, 10A) at 25oC. The figures are identical
for either positive or negative remote On/Off logic.
EFFICIENCY, (%)
OUTPUT CURRENT, Io (A)
4
6
8
10
12
20 30 40 50 60 70 80 90
2.0 m/s
(400 lfm)
1.0 m/s
(200 lfm)
0.5 m/s
(100 lfm)
NC
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 1. Converter Efficiency versus Output Current.
Figure 4. Derating Output Current versus Local
Ambient Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE On/Off VOLTAGE
VO (V) (2V/div) VOn/off (V) (2V/div)
TIME, t (1s/div)
TIME, t (5ms/div)
Figure 2. Typical output ripple and noise (VIN = VIN,NOM,
Io = Io,max).
Figure 5. Typical Start-up Using Remote On/Off,
negative logic version shown (VIN = VIN,NOM, Io =
Io,max).
OUTPUT CURRENT, OUTPUT VOLTAGE
Io (A) (5A/div) VO (V) (20mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (2V/div) VIN (V) (2V/div)
TIME, t (100 s /div)
TIME, t (5ms/div)
Figure 3. Transient Response to Dynamic Load
Change from 75% to 50% to 75% of full load.
Figure 6. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
70
75
80
85
90
95
0
2
4
6
8
10
Vin =48V
Vin =75V
Vin =36V
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 7
Characteristic Curves
The following figures provide typical characteristics for the KW015A0F (3.3V, 15A) at 25oC. The figures are identical
for either positive or negative remote On/Off logic.
EFFICIENCY, (%)
72
75
78
81
84
87
90
93
0 3 6 9 12 15
VIN = 75V
VIN = 48V
VIN = 36V
OUTPUT CURRENT, Io (A)
3
6
9
12
15
18
20 30 40 50 60 70 80 90
1.0 m/s
(200 lfm)
0.5 m/s
(100 lfm)
NC
2.0 m/s
(400 lfm)
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 7. Converter Efficiency versus Output Current.
Figure 10. Derating Output Current versus Local
Ambient Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (10mV/div)
OUTPUT VOLTAGE On/Off VOLTAGE
VO (V) (1V/div) VOn/off (V) (5V/div)
TIME, t (1s/div)
TIME, t (5ms/div)
Figure 8. Typical output ripple and noise (VIN = VIN,NOM,
Io = Io,max).
Figure 11. Typical Start-up Using Remote On/Off,
negative logic version shown (VIN = VIN,NOM, Io = Io,max).
OUTPUT CURRENT, OUTPUT VOLTAGE
Io(A) (5A/div) VO (V) (50mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (50V/div)
TIME, t (1ms/div)
TIME, t (5ms/div)
Figure 9. Transient Response to Dynamic Load
Change from 50% to 75% to 50% of full load.
Figure 12. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 8
Characteristic Curves (continued)
The following figures provide typical characteristics for the KW020A0G (2.5V, 20A) at 25oC. The figures are identical
for either positive or negative remote On/Off logic.
EFFICIENCY, (%)
72
75
78
81
84
87
90
93
0 4 8 12 16 20
Vin = 36V
Vin = 48V
Vin = 75V
OUTPUT CURRENT, Io (A)
0.0
5.0
10.0
15.0
20.0
25.0
20 30 40 50 60 70 80 90
2.0 m/s
(400 lfm)
1.0 m/s
(200 lfm)
0.5 m/s
(100 lfm)
NC
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 13. Converter Efficiency versus Output
Current.
Figure 16. Derating Output Current versus Local
Ambient Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT VOLTAGE On/Off VOLTAGE
VO (V) (1V/div) VOn/off (V) (2V/div)
TIME, t (1s/div)
TIME, t (5ms/div)
Figure 14. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 17. Typical Start-up Using Remote On/Off,
negative logic version shown (VIN = VIN,NOM, Io = Io,max).
OUTPUT CURRENT OUTPUT VOLTAGE
Io(A) (5A/div) VO (V) (50mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (20V/div)
TIME, t (1ms/div)
TIME, t (5ms/div)
Figure 15. Transient Response to Dynamic Load
Change from 50% to 75% to 50% of full load.
Figure 18. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 9
Characteristic Curves (continued)
The following figures provide typical characteristics for the KW025A0Y (1.8V, 25A) at 25oC. The figures are identical
for either positive or negative remote On/Off logic.
EFFICIENCY, (%)
72
75
78
81
84
87
90
93
0 5 10 15 20 25
VIN = 75V
VIN = 48V
VIN = 36V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
20 30 40 50 60 70 80 90
2.0 m/s
(400 lfm)
1.0 m/s
(200 lfm)
0.5 m/s
(100 lfm)
NC
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output
Current.
Figure 22. Derating Output Current versus Local
Ambient Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (100mV/div)
OUTPUT VOLTAGE On/Off VOLTAGE
VO (V) (0.5V/div) VOn/off (V) (5V/div)
TIME, t (1s/div)
TIME, t (5ms/div)
Figure 20. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 23. Typical Start-up Using Remote On/Off,
negative logic version shown (VIN = VIN,NOM, Io =
Io,max).
OUTPUT CURRENT, OUTPUT VOLTAGE
Io (A) (10A/div) VO (V) (20mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (0.5V/div) VIN (V) (50V/div)
TIME, t (1ms/div)
TIME, t (5ms/div)
Figure 21. Transient Response to Dynamic Load
Change from 50% to 75% to 50% of full load.
Figure 24. Typical Start-up Using Input Voltage (VIN
= VIN,NOM, Io = Io,max).
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 10
Characteristic Curves (continued)
The following figures provide typical characteristics for the KW025A0M (1.5V, 25A) at 25oC. The figures are identical
for either positive or negative remote On/Off logic.
EFFICIENCY, (%)
74
76
78
80
82
84
86
88
90
0 5 10 15 20 25
Vin = 75V
Vin = 36V
Vin = 48V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
20 30 40 50 60 70 80 90
2.0 m/s
(400 lfm)
1.0 m/s
(200 lfm)
0.5 m/s
(100 lfm)
NC
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 25. Converter Efficiency versus Output
Current.
Figure 28. Derating Output Current versus Local
Ambient Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (50mV/div)
OUTPUT VOLTAGE On/Off VOLTAGE
VO (V) (500mV/div) VOn/off (V) (2.5V/div)
TIME, t (1s/div)
TIME, t (4ms/div)
Figure 26. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 29. Typical Start-up Using Remote On/Off,
negative logic version shown (VIN = VIN,NOM, Io = Io,max).
OUTPUT CURRENT OUTPUT VOLTAGE
Io(A) (10A/div) VO (V) (50mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (500mV/div) VIN (V) (20V/div)
TIME, t (500us/div)
TIME, t (5ms/div)
Figure 27. Transient Response to Dynamic Load
Change from 50% to 75% to 50% of full load.
Figure 30. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 11
Characteristic Curves (continued)
The following figures provide typical characteristics for the KW025A0P (1.2V, 25A) at 25oC. The figures are identical
for either positive or negative remote On/Off logic.
EFFICIENCY, (%)
74
76
78
80
82
84
86
88
90
0 5 10 15 20 25
Vin = 75V
Vin = 36V
Vin = 48V
OUTPUT CURRENT, Io (A)
10
15
20
25
30
20 30 40 50 60 70 80 90
2.0 m/s
(400 lfm)
1.0 m/s
(200 lfm)
0.5 m/s
(100 lfm)
NC
OUTPUT CURRENT, IO (A)
AMBIENT TEMPERATURE, TA OC
Figure 31. Converter Efficiency versus Output
Current.
Figure 34. Derating Output Current versus Local
Ambient Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (50mV/div)
OUTPUT VOLTAGE On/Off VOLTAGE
VO (V) (0.25V/div) VOn/off (V) (5V/div)
TIME, t (1s/div)
TIME, t (5ms/div)
Figure 32. Typical output ripple and noise (VIN =
VIN,NOM, Io = Io,max).
Figure 35. Typical Start-up Using Remote On/Off,
negative logic version shown (VIN = VIN,NOM, Io =
Io,max).
OUTPUT CURRENT OUTPUT
VOLTAGE
Io (A) (10A/div) VO (V) (50mV/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (0.5V/div) VIN (V) (20V/div)
TIME, t (1ms/div)
TIME, t (5ms/div)
Figure 33. Transient Response to Dynamic Load
Change from 75% to 50% to 75% of full load.
Figure 36. Typical Start-up Using Input Voltage (VIN
= VIN,NOM, Io = Io,max).
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 12
Test Configurations
TO OSCILLOSCOPE
CURRENT PROBE
LTEST
12μH
BATTERY
CS 220μF
E.S.R.<0.1
@ 20°C 100kHz
33μF
Vin+
Vin-
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 12μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
Figure 37. Input Reflected Ripple Current Test
Setup.
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
V
O
(+)
V
O
(
–
)
RESISTIVE
LOAD
SCOPE
COPPER STRIP
GROUND PLANE
10uF
0.1uF
Figure 38. Output Ripple and Noise Test Setup.
Vout+
Vout-
Vin+
Vin-
RLOAD
Rcontact
Rdistribution
Rcontact
Rdistribution
Rcontact
Rcontact
Rdistribution
Rdistribution
VIN
VO
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 39. Output Voltage and Efficiency Test
Setup.
=
VO.
IO
VIN.
IIN
x
100
%
Efficiency
Design Considerations
Input Filtering
The power module should be connected to a low
ac-impedance source. Highly inductive source
impedance can affect the stability of the power
module. For the test configuration in Figure 37, a
33μF electrolytic capacitor (ESR<0.1 at 100kHz),
mounted close to the power module helps ensure the
stability of the unit. Consult the factory for further
application guidelines.
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and
separation requirements of the end-use safety agency
standard, i.e., UL 60950-1-3, CSA C22.2 No. 60950-
00, and VDE 0805:2001-12 (IEC60950-1).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75Vdc), for the module’s output to be considered as
meeting the requirements for safety extra-low voltage
(SELV), all of the following must be true:
The input source is to be provided with reinforced
insulation from any other hazardous voltages,
including the ac mains.
One VIN pin and one VOUT pin are to be
grounded, or both the input and output pins are
to be kept floating.
The input pins of the module are not operator
accessible.
Another SELV reliability test is conducted on the
whole system (combination of supply source and
subject module), as required by the safety
agencies, to verify that under a single fault,
hazardous voltages do not appear at the
module’s output.
Note: Do not ground either of the input pins of the
module without grounding one of the output
pins. This may allow a non-SELV voltage to
appear between the output pins and ground.
The power module has extra-low voltage (ELV)
outputs when all inputs are ELV.
All flammable materials used in the manufacturing of
these modules are rated 94V-0, or tested to the
UL60950 A.2 for reduced thickness.
For input voltages exceeding –60 Vdc but less than or
equal to –75 Vdc, these converters have been
evaluated to the applicable requirements of BASIC
INSULATION between secondary DC MAINS
DISTRIBUTION input (classified as TNV-2 in Europe)
and unearthed SELV outputs.
The input to these units is to be provided with a
maximum 5 A time-delay fuse in the ungrounded lead.
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 13
Feature Description
Remote On/Off
Two remote on/off options are available. Positive logic
turns the module on during a logic high voltage on the
ON/OFF pin, and off during a logic low. Negative logic
remote On/Off, device code suffix “1”, turns the
module off during a logic high and on during a logic
low.
ON/OFF
Vin+
Vin-
Ion/off
Von/off
Vout+
TRIM
Vout-
Figure 40. Remote On/Off Implementation.
To turn the power module on and off, the user must
supply a switch (open collector or equivalent) to
control the voltage (Von/off) between the ON/OFF
terminal and the VIN(-) terminal (see Figure 40). Logic
low is 0V ≤ Von/off ≤ 1.2V. The maximum Ion/off during a
logic low is 1mA, the switch should be maintain a
logic low level whilst sinking this current.
During a logic high, the typical maximum Von/off
generated by the module is 15V, and the maximum
allowable leakage current at Von/off = 5V is 1μA.
If not using the remote on/off feature:
For positive logic, leave the ON/OFF pin open.
For negative logic, short the ON/OFF pin to VIN(-).
Remote Sense
Remote sense minimizes the effects of distribution
losses by regulating the voltage at the remote-sense
connections (See Figure 41). The voltage between
the remote-sense pins and the output terminals must
not exceed the output voltage sense range given in
the Feature Specifications table:
[VO(+) – VO(–)] – [SENSE(+) – SENSE(–)] 0.5 V
Although the output voltage can be increased by both
the remote sense and by the trim, the maximum
increase for the output voltage is not the sum of both.
The maximum increase is the larger of either the
remote sense or the trim.
The amount of power delivered by the module is
defined as the voltage at the output terminals
multiplied by the output current. When using remote
sense and trim, the output voltage of the module can
be increased, which at the same output current would
increase the power output of the module. Care should
be taken to ensure that the maximum output power of
the module remains at or below the maximum rated
power (Maximum rated power = Vo,set x Io,max).
VO(+)
SENSE(+)
SENSE(–)
VO(–)
VI(+)
VI(-)
IOLOAD
CONTACTAND
DISTRIBUTION LOSSES
SUPPLY II
CONTACT
RESISTANCE
Figure 41. Circuit Configuration for remote
sense .
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout
limit, the module operation is disabled. The module
will only begin to operate once the input voltage is
raised above the undervoltage lockout turn-on
threshold, VUV/ON.
Once operating, the module will continue to operate
until the input voltage is taken below the undervoltage
turn-off threshold, VUV/OFF.
Overtemperature Protection
To provide protection under certain fault conditions,
the unit is equipped with a thermal shutdown circuit.
The unit will shutdown if the thermal reference point
Tref (Figure 43), exceeds 125oC (typical), but the
thermal shutdown is not intended as a guarantee that
the unit will survive temperatures beyond its rating.
The module can be restarted by cycling the dc input
power for at least one second or by toggling the
remote on/off signal for at least one second. If the
auto-restart option (4) is ordered, the module will
automatically restart upon cool-down to a safe
temperature.
Output Overvoltage Protection
The output over voltage protection scheme of the
modules has an independent over voltage loop to
prevent single point of failure. This protection feature
latches in the event of over voltage across the output.
Cycling the on/off pin or input voltage resets the
latching protection feature. If the auto-restart option
(4) is ordered, the module will automatically restart
upon an internally programmed time elapsing.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 14
Feature Descriptions (continued)
current-limiting circuitry and can endure current
limiting continuously. At the point of current-limit
inception, the unit enters hiccup mode. If the unit is
not configured with auto–restart, then it will latch off
following the over current condition. The module can
be restarted by cycling the dc input power for at least
one second or by toggling the remote on/off signal for
at least one second. If the unit is configured with the
auto-restart option (4), it will remain in the hiccup
mode as long as the overcurrent condition exists; it
operates normally, once the output current is brought
back into its specified range. The average output
current during hiccup is 10% IO, max.
Output Voltage Programming
Trimming allows the output voltage set point to be
increased or decreased, this is accomplished by
connecting an external resistor between the TRIM pin
and either the VO(+) pin or the VO(-) pin.
VO(+)
VOTRIM
VO(-)
Rtrim-down
LOAD
VIN(+)
ON/OFF
VIN(-)
Rtrim-up
Figure 42. Circuit Configuration to Trim Output
Voltage.
Connecting an external resistor (Rtrim-down) between
the TRIM pin and the Vo(-) (or Sense(-)) pin
decreases the output voltage set point. To maintain
set point accuracy, the trim resistor tolerance should
be ±1.0%.
The following equation determines the required
external resistor value to obtain a percentage output
voltage change of Δ%.
For output voltage: 1.2V (SMT versions only):
kR downtrim 65.7
%5.255
Where
100
2.1
2.1
%
V
VV desired
For output voltage: 1.2V (Through-Hole versions
only) and all 1.5V to 12V:
kR downtrim 22.10
%
511
Where
100%,
,
seto
desiredseto V
VV
For example, to trim-down the output voltage of 2.5V
module (KW020A0G/G1) by 8% to 2.3V, Rtrim-down
is calculated as follows:
8%
kR downtrim 22.10
8
511
kR downtrim 655.53
Connecting an external resistor (Rtrim-up) between the
TRIM pin and the VO(+) (or Sense (+)) pin increases
the output voltage set point. The following equations
determine the required external resistor value to
obtain a percentage output voltage change of Δ%:
For output voltage: all 1.5V to 12V:
k
V
Rseto
uptrim 22.10
%
511
%225.1
%)100(11.5 ,
Where
100%
,
,
seto
setodesired
V
VV
For output voltage: 1.2V (SMT versions only):
k
V
Ruptrim 665.7
%5.255
%225.1 %)100(2.111.5
Where
100
2.1 2.1
%
VVVdesired
For output voltage: 1.2V (Through-Hole versions
only):
k
V
Ruptrim 22.10
%
511
%6.0 %)100(2.111.5
Where
100
2.1 2.1
%
VVVdesired
For example, to trim-up the output voltage of 1.2V
through hole module (KW025A0P/P1) by 5% to
1.26V, Rtrim-up is calculated is as follows:
5%
kR uptrim 22.10
5
511
56.0 )5100(2.111.5
kR uptrim 2.102
The voltage between the Vo(+) and Vo(–) terminals
must not exceed the minimum output overvoltage
protection value shown in the Feature Specifications
table. This limit includes any increase in voltage due
to remote-sense compensation and output voltage
set-point adjustment trim.
Although the output voltage can be increased by both
the remote sense and by the trim, the maximum
increase for the output voltage is not the sum of both.
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 15
Feature Descriptions (continued)
The maximum increase is the larger of either the
remote sense or the trim. The amount of power
delivered by the module is defined as the voltage at
the output terminals multiplied by the output current.
When using remote sense and trim, the output
voltage of the module can be increased, which at the
same output current would increase the power output
of the module. Care should be taken to ensure that
the maximum output power of the module remains at
or below the maximum rated power (Maximum rated
power = Vo,set x Io,max).
Thermal Considerations
The power modules operate in a variety of thermal
environments; however, sufficient cooling should be
provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of
the module will result in an increase in reliability. The
thermal data presented here is based on physical
measurements taken in a wind tunnel.
The thermal reference point, Tref used in the
specifications is shown in Figure 43. For reliable
operation this temperature should not exceed 120oC.
Figure 43. Tref Temperature Measurement
Locations.
Please refer to the Application Note “Thermal
Characterization Process For Open-Frame Board-
Mounted Power Modules” for a detailed discussion of
thermal aspects including maximum device
temperatures.
EMC Considerations
The KW series modules are designed to meet the
conducted emission limits of EN55022 class A with no
filter at the input of the module. The module shall
also meet limits of EN55022 Class B with a
recommended single stage filter. Please contact your
Lineage Power Sales Representitive for further
information.
0
10
20
30
40
50
60
70
80
Lev el [ dBµ V]
150k 300k 500k 1M 2M 3M 5M 7M 10M 30M
Fr eq uen c y [ Hz ]
M ES CE0 9 2 104 1 0 09_ p r e PK
LI M EN 5 5 0 22A V Q P Volt age Q P L im it
Figure 44. KW015A0F Quasi Peak Conducted
Emissions with EN 55022 Class A limits, no
external filter (VIN = VIN,NOM, Io = 0.85 Io,max).
0
10
20
30
40
50
60
70
80
Lev el [ d BµV]
150k 300k 500k 1M 2M 3M 5M 7M 10M 30M
Fr e q uen c y [ Hz ]
+
+ M ES CE0 9 2 104 1 0 09_ f in AV
M ES CE0 9 2 104 1 0 09_ p r e AV
LI M EN 5 5 022A V AV Vo lt a g e AV L im it
Figure 45. KW015A0F Average Conducted
Emissions with EN 55022 Class A limits, no
external filter (VIN = VIN,NOM, Io = 0.85 Io,max).
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 16
Surface Mount Information
Pick and Place
The KW010-025 modules use an open frame
construction and are designed for a fully automated
assembly process. The pick and place location on
the module is the larger magnetic core as shown in
Figure 46. The modules are fitted with a label which
meets all the requirements for surface mount
processing, as well as safety standards, and is able to
withstand reflow temperatures of up to 300oC. The
label also carries product information such as product
code, serial number and the location of manufacture.
Figure 46. Pick and Place Location.
Nozzle Recommendations
The module weight has been kept to a minimum by
using open frame construction. Even so, these
modules have a relatively large mass when compared
to conventional SMT components. Variables such as
nozzle size, tip style, vacuum pressure and placement
speed should be considered to optimize this process.
The recommended nozzle diameter for reliable
operation is 6mm. Oblong or oval nozzles up to 11 x 6
mm may also be used within the space available.
Tin Lead Soldering
The KW010-025 power modules (both non-Z and –Z
codes) can be soldered either in a conventional
Tin/Lead (Sn/Pb) process. The non-Z version of the
KW010-025 modules are RoHS compliant with the
lead exception. Lead based solder paste is used in
the soldering process during the manufacturing of
these modules. These modules can only be soldered
in conventional Tin/lead (Sn/Pb) process. It is
recommended that the customer review data sheets
in order to customize the solder reflow profile for each
application board assembly. The following
instructions must be observed when soldering these
units. Failure to observe these instructions may result
in the failure of or cause damage to the modules, and
can adversely affect long-term reliability.
In a conventional Tin/Lead (Sn/Pb) solder process
peak reflow temperatures are limited to less than
235oC. Typically, the eutectic solder melts at 183oC,
wets the land, and subsequently wicks the device
connection. Sufficient time must be allowed to fuse
the plating on the connection to ensure a reliable
solder joint. There are several types of SMT reflow
technologies currently used in the industry. These
surface mount power modules can be reliably
soldered using natural forced convection, IR (radiant
infrared), or a combination of convection/IR. For
reliable soldering the solder reflow profile should be
established by accurately measuring the modules CP
connector temperatures.
REFLOW TEMP (C)
REFLOW TIME (S)
Figure 47. Reflow Profile for Tin/Lead (Sn/Pb)
process
MAX TEMP SOLDER (C)
Figure 48. Time Limit Curve Above 205oC for
Tin/Lead (Sn/Pb) process
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 17
Surface Mount Information (continued)
Lead Free Soldering
The –Z version of the KW010-025 modules are lead-
free (Pb-free) and RoHS compliant, and are both
forward and backward compatible in a Pb-free and a
SnPb soldering process. The non-Z version of the
KW006/010 modules are RoHS compliant with the
lead exception. Lead based solder paste is used in
the soldering process during the manufacturing of
these modules. These modules can only be soldered
in conventional Tin/lead (Sn/Pb) process. Failure to
observe the instructions below may result in the
failure of or cause damage to the modules and can
adversely affect long-term reliability.
Pb-free Reflow Profile
Power Systems will comply with J-STD-020 Rev. D
(Moisture/Reflow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices) for
both Pb-free solder profiles and MSL classification
procedures. This standard provides a recommended
forced-air-convection reflow profile based on the
volume and thickness of the package (table 4-2). The
suggested Pb-free solder paste is Sn/Ag/Cu (SAC).
The recommended linear reflow profile using
Sn/Ag/Cu solder is shown in Fig. 49.
MSL Rating
The KW010-025 modules have a MSL rating of 2A.
Storage and Handling
The recommended storage environment and handling
procedures for moisture-sensitive surface mount
packages is detailed in J-STD-033 Rev. A (Handling,
Packing, Shipping and Use of Moisture/Reflow
Sensitive Surface Mount Devices). Moisture barrier
bags (MBB) with desiccant are required for MSL
ratings of 2 or greater. These sealed packages
should not be broken until time of use. Once the
original package is broken, the floor life of the product
at conditions of 30°C and 60% relative humidity
varies according to the MSL rating (see J-STD-033A).
The shelf life for dry packed SMT packages will be a
minimum of 12 months from the bag seal date, when
stored at the following conditions: < 40° C, < 90%
relative humidity.
Post Solder Cleaning and Drying
Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect
both the reliability of a power module and the
testability of the finished circuit-board assembly. For
guidance on appropriate soldering, cleaning and
drying procedures, refer to Lineage Power Board
Mounted Power Modules: Soldering and Cleaning
Application Note (AN04-001).
Figure 49. Recommended linear reflow profile
using Sn/Ag/Cu solder.
Through-Hole Lead-Free Soldering
Information
The RoHS-compliant through-hole products use the
SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant
components. They are designed to be processed
through single or dual wave soldering machines. The
pins have an RoHS-compliant finish that is compatible
with both Pb and Pb-free wave soldering processes.
A maximum preheat rate of 3C/s is suggested. The
wave preheat process should be such that the
temperature of the power module board is kept below
210C. For Pb solder, the recommended pot
temperature is 260C, while the Pb-free solder pot is
270C max. Not all RoHS-compliant through-hole
products can be processed with paste-through-hole
Pb or Pb-free reflow process. If additional information
is needed, please consult with your Lineage Power
representative for more details.
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 18
Mechanical Outline for Surface Mount Module
Dimensions are in millimeters and [inches].
Tolerances: x.x mm 0.5 mm [x.xx in. 0.02 in.] (unless otherwise indicated)
x.xx mm 0.25 mm [x.xxx in 0.010 in.]
Top View
Side View
Bottom View
PIN
FUNCTION
1
VIN(+)
2
On/Off
3
VIN(-)
4
Vo(-)
5
Sense(-)
6
Trim
7
Sense(+)
8
Vo(+)
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 19
Mechanical Outline for Through-Hole Module
Dimensions are in millimeters and [inches].
Tolerances: x.x mm 0.5 mm [x.xx in. 0.02 in.] (unless otherwise indicated)
x.xx mm 0.25 mm [x.xxx in 0.010 in.]
Top View
Side View
Bottom View
PIN
FUNCTION
1
VIN(+)
2
On/Off
3
VIN(-)
4
Vo(-)
5
Sense(-)
6
Trim
7
Sense(+)
8
Vo(+)
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 20
Recommended Pad Layout
Dimensions are in and millimeters [inches].
Tolerances: x.x mm 0.5 mm [x.xx in. 0.02 in.] (unless otherwise indicated)
x.xx mm 0.25 mm [x.xxx in 0.010 in.]
SMT Recommended Pad Layout (Component Side View)
TH Recommended Pad Layout (Component Side View)
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
LINEAGE POWER 21
Packaging Details
The Sixteenth-brick SMT versions are supplied in tape & reel as standard. Details of tape dimensions are shown
below. Modules are shipped in quantities of 140 modules per reel.
Tape Dimensions
Dimensions are in millimeters.
Data Sheet
October 7, 2013
KW010/015/020/025 Series Power Modules:
36 – 75Vdc Input; 1.2 to 5.0Vdc Output; 10 to 25A Output current
Document No: DS04-045 ver. 1.09
PDF name: kw010-015-020-025_ds.pdf
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Table 1. Device Code
Product Codes
Input Voltage
Output
Voltage
Output
Current
On/Off Logic
Connector
Type
Comcode
KW010A0A41-SR
48V (36-75Vdc)
5.0V
10A
Negative
Surface mount
108992434
KW015A0F41-SR
48V (36-75Vdc)
3.3V
15A
Negative
Surface mount
108989934
KW015A0F41
48V (36-75Vdc)
3.3V
15A
Negative
Through hole
108992590
KW025A0Y41
48V (36-75Vdc)
1.8V
25A
Negative
Through hole
108989942
KW010A0A41-SRZ
48V (36-75Vdc)
5.0V
10A
Negative
Surface mount
CC109112042
KW010A0A41Z
48V (36-75Vdc)
5.0V
10A
Negative
Through hole
CC109112050
KW015A0F41-SRZ
48V (36-75Vdc)
3.3V
15A
Negative
Surface mount
CC109105888
KW015A0F41Z
48V (36-75Vdc)
3.3V
15A
Negative
Through hole
CC109112067
KW015A0F841Z
48V (36-75Vdc)
3.3V
15A
Negative
Through hole
CC109144696
KW020A0G4-SRZ
48V (36-75Vdc)
2.5V
20A
Positive
Surface mount
CC109112653
KW020A0G41-SRZ
48V (36-75Vdc)
2.5V
20A
Negative
Surface mount
CC109128212
KW020A0G41Z
48V (36-75Vdc)
2.5V
20A
Negative
Through hole
CC109141710
KW020A0G41-BZ
48V (36-75Vdc)
2.5V
20A
Negative
Through hole
CC109108395
KW025A0Y41-SRZ
48V (36-75Vdc)
1.8V
25A
Negative
Surface mount
CC109112091
KW025A0Y41Z
48V (36-75Vdc)
1.8V
25A
Negative
Through hole
CC109112100
KW025A0Y641Z
48V (36-75Vdc)
1.8V
25A
Negative
Through hole
CC109127445
KW025A0M41Z
48V (36-75Vdc)
1.5V
25A
Negative
Through hole
CC109128492
KW025A0P41-SRZ
48V (36-75Vdc)
1.2V
25A
Negative
Surface mount
CC109123964
KW025A0P41Z
48V (36-75Vdc)
1.2V
25A
Negative
Through hole
CC109128385
-Z Indicated RoHS Compliant Modules
Table 2. Device Options
Option*
Suffix**
Negative remote on/off logic
1
Auto Re-start (for Over Current / Over voltage Protections)
4
Pin Length: 3.68 mm ± 0.25 mm, (0.145 in. ± 0.010 in.)
6
Pin Length: 2.79 mm ± 0.25 mm, (0.110 in. ± 0.010 in.)
8
Surface mount connections (Tape & Reel)
-SR
* Legacy device codes may contain a –B option suffix to indicate 100% factory Hi-Pot tested to the isolation voltage specified in the
Absolute Maximum Ratings table. The 100% Hi-Pot test is now applied to all device codes, with or without the –B option suffix.
Existing comcodes for devices with the –B suffix are still valid; however, no new comcodes for devices containing the –B suffix will
be created.
World Wide Headquarters
Lineage Power Corporation
601 Shiloh Road, Plano, TX 75074, USA
+1-888-LINEAGE(546-3243)
(Outside U.S.A.: +1-972-244-WATT(9288))
www.lineagepower.com
e-mail: techsupport1@lineagepower.com
Asia-Pacific Headquarters
Tel: +86.021.54279977*808
Europe, Middle-East and Africa Headquarters
Tel: +49.89.878067-280
India Headquarters
Tel: +91.80.28411633
Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or
application. No rights under any patent accompany the sale of any such product(s) or information.
Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents.
© 2010 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.
