LW030A87 Lineage Power, LW030A87 Datasheet - Page 14

• Manufacturer Part Number: LW030A87
• Description: CONVERTER DC/DC 5V 30W OUT
• Manufacturer: Lineage Power
• Series: LW030r
• Type: Isolated with Remote On/Offr

Specifications of LW030A87

• Output: 5V
• Number Of Outputs: 1
• Power (watts): 30W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 10-DIP Module
• 1st Output: 5 VDC @ 6A
• Size / Dimension: 2.80" L x 2.40" W x 0.38" H (71.1mm x 61mm x 9.7mm)
• Power (watts) - Rated: 30W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 81%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

18 Vdc to 36 Vdc Inputs; 2 Vdc to 15 Vdc Outputs;13 W to 30 W
Thermal Considerations
The JC030-Series Power Modules are designed to
operate in a variety of thermal environments. As with
any electronic component, sufficient cooling must be
provided to help ensure reliable operation. Heat-dissi-
pating components inside the module are thermally
coupled to the case to enable heat removal by conduc-
tion, convection, and radiation to the surrounding envi-
ronment.
The thermal data presented is based on measure-
ments taken in a wind tunnel. The test setup shown in
Figure 26 was used to collect data for Figures 31 and
32.
Note that the natural convection condition was mea-
sured at 0.05 ms
20 ft./min.); however, systems in which these power
modules may be used typically generate natural con-
vection airflow rates of 0.3 ms
other heat dissipating components in the system.
The graphs in Figures 27 through 32 provide general
guidelines for use. Actual performance can vary
depending on the particular application environment.
The maximum case temperature of 100 °C must not be
exceeded.
Basic Thermal Performance
The JC030-Series power modules are built with a spe-
cially designed, heat spreading enclosure. As a result,
full-load operation in natural convection at 50 °C can
be achieved without the use of an external heat sink.
Higher ambient temperatures can be sustained by
increasing the airflow or by adding a heat sink. As
stated, this data is based on a maximum case tempera-
ture of 100 °C and measured in the test configuration
shown in Figure 26.
Forced Convection Cooling
To determine the necessary airflow, determine the
power dissipated by the unit for the particular applica-
tion. Figures 27 through 30 show typical power dissipa-
tion for those power modules over a range of output
currents. With the known power dissipation and a given
local ambient temperature, the appropriate airflow can
be chosen from the derating curves in Figure 31. For
example, if the unit dissipates 6.2 W, the minimum air-
flow in an 80 °C environment is 1.02 ms
(200 ft./min.).
14
14
–1
to 0.1 ms
–1
–1
(10 ft./min. to
(60 ft./min.) due to
(continued)
–1
Figure 27. JC030D-M Power Dissipation vs. Output
Figure 28. JC030A-M Power Dissipation vs. Output
9
8
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
0.6
0
Current
Current
1
1.6
V
V
V
I
I
I
= 36 V
= 27 V
= 18 V
OUTPUT CURRENT, I
OUTPUT CURRENT, I
2
2.6
3
3.8
March 26, 2008
O
4
(A)
O
4.6
(A)
Lineage Power
V
V
V
I
I
I
= 18 V
= 24 V
= 36 V
5
5.6
8-2690(C)
8-1154(C)
6
6.6