Data Sheet
April 2008
JW050B, JW075B, JW100B, JW150B Power Modules:
dc-dc Converters; 36 to 75 Vdc Input, 12 Vdc Output; 50 W to 150
W
Features
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Small size: 61.0 mm x 57.9 mm x 12.7 mm
(2.40 in. x 2.28 in. x 0.50 in.)
High power density
High efficiency: 88% typical
Low output noise
Constant frequency
Industry-standard pinout
Metal baseplate
2:1 input voltage range
Overtemperature protection (100 W and 150 W only)
Overcurrent and overvoltage protection
Remote sense
Remote on/off
Adjustable output voltage: 60% to 110% of V
O, nom
Case ground pin
ISO9001 Certified manufacturing facilities
UL*
1950 Recognized,
CSA
†
C22.2 No. 950-95
Certified, and VDE 0805 (EN60950, IEC950)
Licensed
CE mark meets 73/23/EEC and 93/68/EEC
directives
‡
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The JW050B, JW075B, JW100B, and JW150B Power Modules
use advanced, surface-mount technology and deliver high-
quality, efficient, and compact dc-dc conversion.
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Applications
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Distributed power architectures
Workstations
Computer equipment
Communications equipment
Options
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Heat sinks available for extended operation
Choice of remote on/off logic configuration
Description
*
UL
is a registered trademark of Underwriters Laboratories, Inc.
†
CSA
is a registered trademark of Canadian Standards Assn.
‡ This product is intended for integration into end-use equipment.
All the required procedures for CE marking of end-use equip-
ment should be followed. (The CE mark is placed on selected
products.)
The JW050B, JW075B, JW100B, and JW150B Power Modules are dc-dc converters that operate over an input
voltage range of 36 Vdc to 75 Vdc and provide a precisely regulated dc output. The outputs are fully isolated
from the inputs, allowing versatile polarity configurations and grounding connections. The modules have maxi-
mum power ratings from 50 W to 150 W at a typical full-load efficiency of 88%.
The sealed modules offer a metal baseplate for excellent thermal performance. Threaded-through holes are pro-
vided to allow easy mounting or addition of a heat sink for high-temperature applications. The standard feature set
includes remote sensing, output trim, and remote on/off for convenient flexibility in distributed power applications.
JW050B, JW075B, JW100B, JW150B Power Modules:
dc-dc Converters; 36 to 75 Vdc Input, 12 Vdc Output; 50 W to 150 W
Data Sheet
April 2008
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute 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 device reliability.
Parameter
Input Voltage:
Continuous:
JW050B, JW075B
JW100B, JW150B
Transient (100 ms; JW100B, JW150B only)
I/O Isolation Voltage (for 1 minute)
Operating Case Temperature
(See Thermal Considerations section.)
Storage Temperature
Symbol
Min
Max
Unit
V
I
V
I
V
I, trans
—
T
C
T
stg
—
—
—
—
–40
–55
75
80
100
1500
100
125
Vdc
Vdc
V
Vdc
°C
°C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Table 1. Input Specifications
Parameter
Operating Input Voltage
Maximum Input Current
(V
I
= 0 V to 75 V; I
O
= I
O, max
):
JW050B (See Figure 1.)
JW075B (See Figure 2.)
JW100B (See Figure 3.)
JW150B (See Figure 4.)
Inrush Transient
Input Reflected-ripple Current, Peak-to-peak
(5 Hz to 20 MHz, 12 µH source impedance;
see Figure 17.)
Input Ripple Rejection (120 Hz)
Fusing Considerations
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone
operation to an integrated part of a sophisticated power architecture. To preserve maximum flexibility, internal fus-
ing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The
safety agencies require a normal-blow fuse with a maximum rating of 20 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 for further information.
Symbol
V
I
Min
36
Typ
48
Max
75
Unit
Vdc
I
I, max
I
I, max
I
I, max
I
I, max
i
2
t
I
I
—
—
—
—
—
—
—
—
—
—
—
5
1.7
2.6
3.5
5.2
1.0
—
A
A
A
A
A
2
s
mAp-p
—
—
60
—
dB
2
Lineage Power
Data Sheet
April 2008
JW050B, JW075B, JW100B, JW150B Power Modules:
dc-dc Converters; 36 to 75 Vdc Input, 12 Vdc Output; 50 W to 150 W
Electrical Specifications
(continued)
Table 2. Output Specifications
Parameter
Output Voltage Set Point
(V
I
= 48 V; I
O
= I
O, max
; T
C
= 25 °C)
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life.
See Figure 19.)
Output Regulation:
Line (V
I
= 36 V to 75 V)
Load (I
O
= I
O, min
to I
O, max
)
Temperature (T
C
= –40 °C to +100 °C)
Output Ripple and Noise Voltage (See
Figure 18.):
RMS
Peak-to-peak (5 Hz to 20 MHz)
External Load Capacitance
Output Current
(At I
O
< I
O, min
, the modules may exceed output
ripple specifications.)
Output Current-limit Inception
(V
O
= 90% of V
O, nom
)
Device
All
All
Symbol
V
O, set
V
O
Min
11.78
11.64
Typ
12.0
—
Max
12.22
12.36
Unit
Vdc
Vdc
All
All
All
—
—
—
—
—
—
0.01
0.05
50
0.2
0.4
150
%V
O
%V
O
mV
All
All
All
JW050B
JW075B
JW100B
JW150B
JW050B
JW075B
JW100B
JW150B
All
JW050B
JW075B
JW100B
JW150B
All
—
—
—
I
O
I
O
I
O
I
O
I
O, cli
I
O, cli
I
O, cli
I
O, cli
—
η
η
η
η
—
—
—
0
0.3
0.3
0.3
0.3
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4.8
7.2
9.6
14.4
170
85
86
87
87
500
50
200
*
4.2
6.3
8.3
12.5
5.8
†
8.8
†
10.8
†
16.3
†
—
—
—
—
—
—
mVrms
mVp-p
µF
A
A
A
A
A
A
A
A
%I
O, max
%
%
%
%
kHz
Output Short-circuit Current (V
O
= 250 mV)
Efficiency (V
I
= 48 V; I
O
= I
O, max
; T
C
= 25 °C)
Switching Frequency
Dynamic Response
(½I
O
/½t = 1 A/10 µs, V
I
= 48 V, T
C
= 25 °C;
tested with a 10 µF aluminum and a 1.0 µF
ceramic capacitor across the load; see
Figures 14 and 15):
Load Change from I
O
= 50% to 75% of I
O, max
:
Peak Deviation
Settling Time (V
O
< 10% of peak deviation)
Load Change from I
O
= 50% to 25% of I
O, max
:
Peak Deviation
Settling Time (V
O
< 10% of peak deviation)
All
All
All
All
—
—
—
—
—
—
—
—
2
300
2
300
—
—
—
—
%V
O,
set
µs
%V
O,
set
µs
* Consult your sales representative or the factory.
† These are manufacturing test limits. In some situations, results may differ.
Lineage Power
3
JW050B, JW075B, JW100B, JW150B Power Modules:
dc-dc Converters; 36 to 75 Vdc Input, 12 Vdc Output; 50 W to 150 W
Data Sheet
April 2008
Electrical Specifications
(continued)
Table 3. Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
Min
—
10
Typ
2500
—
Max
—
—
Unit
pF
M¾
General Specifications
Parameter
Calculated MTBF (I
O
= 80% of I
O, max
; T
C
= 40 °C)
Weight
—
Min
Typ
2,600,000
—
100 (3.5)
Max
Unit
hr.
g (oz.)
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Remote On/Off Signal Interface
(V
I
= 0 V to 75 V; open collector or equivalent compatible;
signal referenced to V
I
(–) terminal; see Figure 20 and
Feature Descriptions.):
JWxxxB1 Preferred Logic:
Logic Low—Module On
Logic High—Module Off
JWxxxB Optional Logic:
Logic Low—Module Off
Logic High—Module On
Logic Low:
At I
on/off
= 1.0 mA
At V
on/off
= 0.0 V
Logic High:
At I
on/off
= 0.0 µA
Leakage Current
Turn-on Time (See Figure 16.)
(I
O
= 80% of I
O, max
; V
O
within ±1% of steady state)
Output Voltage Adjustment (See Feature Descriptions.)
Output Voltage Remote-sense Range
Output Voltage Set-point Adjustment Range (trim)
Output Overvoltage Protection
Overtemperature Protection (shutdown)
(100 W and 150 W only; see Feature Descriptions.)
* These are manufacturing test limits. In some situations, results may differ.
Symbol
Min
Typ
Max
Unit
V
on/off
I
on/off
V
on/off
I
on/of
—
0
—
—
—
—
—
—
—
—
20
1.2
1.0
15
50
35
V
mA
V
µA
ms
—
—
V
O, clamp
T
C
—
60
13.2*
—
—
—
—
105
1.2
110
16.0*
—
V
%V
O, nom
V
°C
4
Lineage Power
Data Sheet
April 2008
JW050B, JW075B, JW100B, JW150B Power Modules:
dc-dc Converters; 36 to 75 Vdc Input, 12 Vdc Output; 50 W to 150 W
Characteristic Curves
The following figures provide typical characteristics for the power modules. The figures are identical for both on/off
configurations.
2.0
4.0
3.5
INPUT CURRENT, I
I
(A)
1.5
INPUT CURRENT, I
I
(A)
0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72
INPUT VOLTAGE, V
I
(V)
8-1159 (C)
3.0
2.5
2.0
1.5
1.0
0.5
1.0
0.5
0.0
0.0
0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72
INPUT VOLTAGE, V
I
(V)
8-1160 (C)
Figure 1. Typical JW050B Input Characteristics at
Room Temperature
Figure 3. Typical JW100B Input Characteristics at
Room Temperature
3.0
2.5
INPUT CURRENT, I
I
(A)
INPUT CURRENT, I
I
(A)
6
5
I
O
= 12.5 A
4
3
2
1
0
0
10
20
30
40
50
60
70
80
INPUT VOLTAGE, V
I
(V)
8-1131 (C)
8-1142 (C)
2.0
1.5
1.0
0.5
0.0
0
10
20
30
40
50
60
70
80
INPUT VOLTAGE, V
I
(V)
Figure 2. Typical JW075B Input Characteristics at
Room Temperature
Figure 4. Typical JW150B Input Characteristics at
Room Temperature
Lineage Power
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