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JRW065A0Y1

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Data Sheet
July 21, 2008
JRW017-070 Series Power Modules DC-DC Converters
36-75Vdc Input; 1.2Vdc to 12Vdc Output
LINEAGE POWER 19
Note that the natural convection condition was
measured at 0.05 m/s to 0.1 m/s (10ft./min. to 20
ft./min.); however, systems in which these power
modules may be used typically generate natural
convection airflow rates of 0.3 m/s (60 ft./min.) due to
other heat dissipating components in the system. The
use of Figures 53 - 59 are shown in the following
example:
Example
What is the minimum airflow necessary for a
JRW060A0F operating at VI = 48 V, an output current
of 42A, and a maximum ambient temperature of 70 °C
in transverse orientation.
Solution:
Given: VI = 48V
Io = 48A
T
A
= 70 °C
Determine airflow (V) (Use Figure 53):
V = 1m/sec. (200ft./min.)
0
2
4
6
8
10
12
14
16
18
20
20 30 40 50 60 70 80 90
Natural Convection
1.0 m/s (200 ft./min)
2.0 m/s (400 ft./min)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(°C)
Figure 53. Output Power Derating for JRW017A0B
(Vo = 12V) in Transverse Orientation with no
baseplate; Airflow Direction From Vin(+) to Vin (-);
Vin = 48V.
0
10
20
30
40
50
60
70
20 30 40 50 60 70 80 90
Natural Convection
1.0 m/s (200 ft./min)
2.0 m/s (400 ft./min)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(°C)
Figure 55. Output Power Derating for JRW060A0F (Vo
= 3.3V) in Transverse Orientation with no baseplate;
Airflow Direction From Vin(+) to Vin(-); Vin = 48V.
0
10
20
30
40
50
60
70
20 30 40 50 60 70 80 90
Natural Convection
1.0 m/s (200 ft./min)
2.0 m/s (400 ft./min)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(°C)
Figure 56. Output Power Derating for JRW065A0G (Vo
= 2.5V) in Transverse Orientation with no baseplate;
Airflow Direction From Vin(+) to Vin(-); Vin = 48V.
0
10
20
30
40
50
60
70
20 30 40 50 60 70 80 90
Natural Convection
1.0 m/s (200 ft./min)
2.0 m/s (400 ft./min)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(°C)
Figure 57. Output Power Derating for JRW065A0Y (Vo
= 1.8V) in Transverse Orientation with no baseplate;
Airflow Direction From Vin(+) to Vin(-); Vin = 48V.
0
5
10
15
20
25
30
35
40
45
50
20 30 40 50 60 70 80 90
Natural Convection
1.0 m/s (200 ft./min)
2.0 m/s (400 ft./min)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(°C)
Figure 54. Output Power Derating for JRW040A0A
(Vo = 5V) in Transverse Orientation with no
baseplate; Airflow Direction From Vin(+) to Vin (-);
Vin = 48V.
Data Sheet
July 21, 2008
JRW017-070 Series Power Modules DC-DC Converters
36-75Vdc Input; 1.2Vdc to 12Vdc Output
LINEAGE POWER 20
0
10
20
30
40
50
60
70
80
20 30 40 50 60 70 80 9
0
Natural Convection
1.0 m/s (200 ft./min)
2.0 m/s (400 ft./min)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(°C)
Figure 58. Output Power Derating for JRW070A0M
(Vo = 1.5V) in Transverse Orientation with no
baseplate; Airflow Direction From Vin(+) to Vin(-);
Vin = 48V.
0
10
20
30
40
50
60
70
80
20 30 40 50 60 70 80 90
Natural Convection
1.0 m/s (200 ft./min)
2.0 m/s (400 ft./min)
OUTPUT CURRENT, I
O
(A)
LOCAL AMBIENT TEMPERATURE, T
A
(°C)
Figure 59. Output Power Derating for JRW070A0P(Vo
= 1.2V) in Transverse Orientation with no baseplate;
Airflow Direction From Vin(+) to Vin(-); Vin = 48V.
Data Sheet
July 21, 2008
JRW017-070 Series Power Modules DC-DC Converters
36-75Vdc Input; 1.2Vdc to 12Vdc Output
LINEAGE POWER 21
Layout Considerations
The JRW power module series are low profile in order
to be used in fine pitch system and architectures. As
such, component clearances between the bottom of
the power module and the mounting board are limited.
Either avoid placing copper areas on the outer layer
directly underneath the power module or maintain a
minimum clearance through air of 0.028 inches
between any two “opposite polarity” components,
including copper traces under the module to
components on the JRW module..
For modules with a “7” (case (heatplate) pin) and “-H”
(heatplate) option:
To meet Basic Insulation in the end product 1)
between the input and output of the module, or 2)
between the input and the earth ground, a series
capacitor (capable of withstanding 1500V dc) needs
to inserted between the case pin and the end
termination point, if the case pin is connected to the
input or the output of the JRW module or to earth
ground.
For additional layout guide-lines, refer to
FLTR100V10 data sheet.
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 (AP01-056EPS).
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 3°C/s is suggested. The
wave preheat process should be such that the
temperature of the power module board is kept below
210°C. For Pb solder, the recommended pot
temperature is 260°C, while the Pb-free solder pot is
270°C 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.
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JRW065A0Y1

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DC DC CONVERTER 1.8V 117W
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