LW030A87 Lineage Power, LW030A87 Datasheet - Page 15

• 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: -

March 26, 2008
Thermal Considerations
Forced Convection Cooling
Figure 29. JC030B-M Power Dissipation vs. Output
Figure 30. JC030C-M Power Dissipation vs. Output
Lineage Power
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
0.0 0.2
0.0
Current
Current
0.4
0.5
V
V
I
I
V
V
= 24 V
= 36 V
OUTPUT CURRENT, I
I
I
OUTPUT CURRENT, I
= 36 V
= 27 V
0.6
1.0
0.8
1.0
18 Vdc to 36 Vdc Inputs; 2 Vdc to 15 Vdc Outputs;13 W to 30 W
1.5
1.2
(continued)
O
(continued)
O
V
(A)
V
I
(A)
1.4
I
= 18 V
= 18 V
2.0
1.6
1.8
8-1212(C).a
8-1211(C)
2.5
2.0
Figure 31. Forced Convection Power Derating with
Heat Sink Selection
Several heat sinks are available for these modules.
The case includes through threaded mounting holes
allowing attachment of heat sinks or cold plates from
either side of the module. The mounting torque must
not exceed 0.56 N-m (5 in.-lb.).
Figure 32 shows the case-to-ambient thermal resis-
tance, θ (°C/W), for these modules. These curves can
be used to predict which heat sink will be needed for a
particular environment. For example, if the unit dissi-
pates 7 W of heat in an 80 °C environment with an air-
flow of 0.66 ms
required can be determined as follows:
where:
θ ð (100 – 80)/7
θ ð 2.9 °C/W
From Figure 32, the 1/2 inch high heat sink or greater
is required.
9
8
7
6
5
4
3
2
1
0
T
30
C, max
P
T
400 ft./min. (2.03 m/s)
200 ft./min. (1.02 m/s)
100 ft./min. (0.51 m/s)
No Heat Sink; Either Orientation
θ = module’s total thermal resistance
A
D
40
LOCAL AMBIENT TEMPERATURE, T
= case temperature (See Figure 26.)
= inlet ambient temperature
= power dissipation
–1
CONVECTION
θ
(130 ft./min.), the minimum heat sink
(See Figure 26.)
≤
50
NATURAL
(
T
C max
,
60
–
T
70
A
) P
⁄
D
80
A
(˚C)
90
8-1051(C).a
100
15