LW025F8 Lineage Power, LW025F8 Datasheet - Page 11

• Manufacturer Part Number: LW025F8
• Description: CONVERTER DC/DC 3.3V 16.5W OUT
• Manufacturer: Lineage Power
• Series: LW025r
• Type: Isolated with Remote On/Offr

Specifications of LW025F8

• Output: 3.3V
• Number Of Outputs: 1
• Power (watts): 25W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 8-DIP Module
• 1st Output: 3.3 VDC @ 5A
• Size / Dimension: 2.00" L x 2.00" W x 0.39" H (50.8mm x 50.8mm x 9.9mm)
• Power (watts) - Rated: 16.5W
• Operating Temperature: -40°C ~ 110°C
• Efficiency: 77%
• Approvals: CE, CSA, UL, VDE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -

April 2008
Thermal Considerations
Heat Transfer
Figure 15. LW025F Forced Convection Power
Figure 16. LW025A Forced Convection Power
Lineage Power
Note: Conversion factor for linear feet per minute to meters per
Note: Conversion factor for linear feet per minute to meters per
second: 200 ft./min. = 1 ms
second: 200 ft./min. = 1 ms
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
40
40
NATURAL CONVECTION
Derating; Either Orientation
Derating; Either Orientation
1.0 ms -1 (600 ft./min.)
2.0 ms -1 (400 ft./min.)
3.0 ms -1 (200 ft./min.)
1.0 ms
2.0 ms
3.0 ms
50
50
MAX AMBIENT TEMPERATURE, T
MAX AMBIENT TEMPERATURE, T
TEMPURATURE
CONVECTION
-1
-1
-1
(continued)
60
60
MAX CASE
(200 ft./min.)
(400 ft./min.)
(600 ft./min.)
NATURAL
70
70
–1
–1
.
.
MAX CASE TEMPERATURE
80
80
(continued)
90
90
A
A
100
(˚C)
100
(˚C)
8-2477(C)
8-1985(C)
110
110
Figure 17. LW025F Power Dissipation vs. Output
Figure 18. LW025A Power Dissipation vs. Output
6
5
4
3
2
1
0
0.4
8
7
6
5
4
3
2
1
0
0.5
Current, T
Current, T
0.9
1
36 Vdc to 75 Vdc Inputs; 25 W
1.4
1.5
OUTPUT CURRENT, I
OUTPUT
1.9
A
A
2
= 25 °C
= 25 °C
V
V
V
I
I
I
2.4
= 75 V
= 48 V
= 36 V
2.5
CURRENT, I
V
V
V
I
I
I
= 75 V
= 48 V
2.9
= 36 V
3
O
3.4
(A)
3.5
O
(A)
3.9
4
4.4
4.5
8-1888(C).a
8-2479(C)
4.9
11
5