Data Sheet
April 2008
JAW050A and JAW075A Power Modules; dc-dc Converters:
36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W
Features
n
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: 84% typical
Low output noise
Constant frequency
Industry-standard pinout
Metal case
2:1 input voltage range
Overtemperature, overvoltage, and overcurrent
protection
Remote on/off and remote sense
Adjustable output voltage
Case ground pin
Manufacturing facilities registered against the
ISO*9000
series standards
UL
†
60950 Recognized,
CSA
‡
C22.2 No. 60950-00
Certified, and
VDE
§
0805 (IEC** 60950, 4th Edi-
tion) Licensed
CE mark meets 73/23/EEC and 93/68/EEC
directives
††
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The JAW Series Power Modules use surface-mount technol-
ogy and deliver efficient and compact dc-dc conversion.
Applications
n
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Distributed power architectures
Establishing 5 V local power bus to feed
point-of-load converters in 48 V bus systems
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Options
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Heat sinks available for extended operation
Choice of remote on/off logic configuration
Choice of short lead lengths
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Description
The JAW050A and JAW075A Power Modules are dc-dc converters that operate over an input voltage range of
36 Vdc to 75 Vdc and provide a regulated dc output. The outputs are fully isolated from the inputs, allowing
versatile polarity configurations and grounding connections. The modules have maximum power ratings from
50 W to 75 W at a typical full-load efficiency of 84%.
The sealed modules offer a metal baseplate for improved thermal performance. Threaded-through holes are
provided 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.
*
ISO
is a registered trademark of the International Organization for Standardization.
†
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.
**
IEC
is a trademark of International Elektrotechniker Commission.
†† This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should
be followed. (The CE mark is placed on selected products.)
JAW050A and JAW075A Power Modules; dc-dc Converters:
36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 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
Transient (100 ms)
Operating Case Temperature
(See Thermal Considerations section.)
Storage Temperature
I/O Isolation Voltage
Symbol
V
I
V
I, trans
T
C
T
stg
—
Min
—
—
–40
–55
—
Max
80
100
100
125
1500
Unit
Vdc
V
°C
°C
Vdc
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
:
JAW050A (See Figure 1.)
JAW075A (See Figure 2.)
V
I
= 36 V to 75 V; I
O
= I
O, max
:
JAW050A
JAW075A
Inrush Transient
Input Reflected-ripple Current, Peak-to-peak
(5 Hz to 20 MHz, 12 µH source impedance;
see Figure 11.)
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 6 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
3.0
3.5
1.7
2.6
1.0
—
A
A
A
A
A
2
s
mAp-p
—
—
60
—
dB
2
Lineage Power
Data Sheet
April 2008
JAW050A and JAW075A Power Modules; dc-dc Converters:
36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 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 13.)
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 12.):
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
)
Output Short-circuit Current (V
O
= 250 mV)
Efficiency (V
I
= 48 V; I
O
= I
O, max
; T
C
= 70 °C;
see Figure 13.)
Switching Frequency
Dynamic Response
(ΔI
O
/Δt = 1 A/10 µs, V
I
= 48 V, T
C
= 25 °C;
tested without any load capacitance.):
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)
Device
All
All
Symbol
V
O, set
V
O
Min
4.92
4.85
Typ
5.0
—
Max
5.08
5.15
Unit
Vdc
Vdc
All
All
All
—
—
—
—
—
—
0.01
0.05
15
0.1
0.2
50
%V
O
%V
O
mV
All
All
All
JAW050A
JAW075A
JAW050A
JAW075A
All
JAW050A
JAW075A
All
—
—
—
I
O
I
O
I
O, cli
I
O, cli
—
η
η
—
—
—
0
0.5
0.5
—
—
—
—
—
—
—
—
—
—
—
12.0
18.0
170
84
84
320
40
150
*
10
15
14
†
21
†
—
—
—
—
mVrms
mVp-p
µF
A
A
A
A
%I
O, max
%
%
kHz
All
All
All
All
—
—
—
—
—
—
—
—
5
300
5
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.
Table 3. Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
Min
—
10
Typ
2500
—
Max
—
—
Unit
pF
MΩ
Lineage Power
3
JAW050A and JAW075A Power Modules; dc-dc Converters:
36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W
Data Sheet
April 2008
General Specifications
Parameter
Calculated MTBF (I
O
= 80% of I
O, max
; T
C
= 40 °C)
Weight
—
Min
Typ
3,000,000
—
100 (3.5)
Max
Unit
hours
g (oz.)
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See the Feature Descriptions section 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):
JAWxxxA1 Preferred Logic:
Logic Low—Module On
Logic High—Module Off
JAWxxxA 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 10.)
(I
O
= 80% of I
O, max
; V
O
within ±1% of steady state)
Output Voltage Adjustment:
Output Voltage Remote-sense Range
Output Voltage Set-point Adjustment Range (trim)
Output Overvoltage Protection
Overtemperature Protection
* 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/off
—
0
—
—
—
—
—
—
—
—
40
1.2
1.0
15
50
80
V
mA
V
µA
ms
—
—
V
O, sd
T
C
—
60
5.9*
—
—
—
—
105
0.5
110
7.0*
—
V
%V
O, nom
V
°C
Solder, Cleaning, and Drying Considerations
Post solder cleaning is usually the final circuit-board assembly process prior to the electrical board testing. The
result of inadequate circuit-board cleaning and drying can affect both the reliability of a power module and the test-
ability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning, and drying proce-
dures, refer to the
Board-Mounted Power Modules: Soldering and Cleaning
Application Note (AP97-021EPS).
4
Lineage Power
Data Sheet
April 2008
JAW050A and JAW075A Power Modules; dc-dc Converters:
36 Vdc to 75 Vdc Input, 5 Vdc Output; 50 W to 75 W
Characteristic Curves
The following figures provide typical characteristics for the power modules. The figures are identical for both on/off
configurations.
1.8
1.6
INPUT CURRENT, I
I
(A)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
INPUT VOLTAGE, V
I
(V)
8-3327(F)
EFFICIENCY,
η
(%)
I
O
= 10 A
I
O
= 5 A
I
O
= 0.5 A
84
83
82
81
80
79
78
77
76
75
74
3
V
I
= 36 V
V
I
= 55 V
V
I
= 75 V
4
5
6
7
8
9
10
OUTPUT CURRENT, I
O
(A)
8-3329(F)
Figure 1. Typical JAW050A Input Characteristics at
Room Temperature
Figure 3. Typical JAW050A Efficiency vs. Output
Current at Room Temperature
3.0
INPUT CURRENT, I
I
(A)
2.5
2.0
1.5
1.0
0.5
0.0
0
I
O
= 15 A
I
O
= 7.5 A
I
O
= 1.5 A
85
84
EFFICIENCY,
η
(%)
83
82
81
80
79
78
77
76
75
3
V
I
= 36 V
V
I
= 55 V
V
I
= 75 V
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
INPUT VOLTAGE, V
I
(V)
8-3328(F)
4
5
6
7
8
9
10 11 12 13 14 15
OUTPUT CURRENT, I
O
(A)
8-3330(F)
Figure 2. Typical JAW075A Input Characteristics at
Room Temperature
Figure 4. Typical JAW075A Efficiency vs. Output
Current at Room Temperature
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5
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