QHW075G71 Lineage Power, QHW075G71 Datasheet - Page 13

• Manufacturer Part Number: QHW075G71
• Description: CONVERTER DC/DC 2.5V 38W OUT
• Manufacturer: Lineage Power
• Series: QHWr
• Type: Isolated with Remote On/Offr

Specifications of QHW075G71

• Output: 2.5V
• Number Of Outputs: 1
• Power (watts): 38W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 8-DIP Module
• 1st Output: 2.5 VDC @ 15A
• Size / Dimension: 2.28" L x 1.45" W x 0.50" H (57.9mm x 36.8mm x 12.7mm)
• Power (watts) - Rated: 38W
• Operating Temperature: -40°C ~ 100°C
• Efficiency: 86%
• 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 Without Heat Sinks
Figure 24. Forced Convection Power Derating with
Figure 25. QHW050G1 Power Dissipation vs.
Lineage Power
20
15
10
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
5
0
0
1
10
No Heat Sink; Longitudinal Orientation
V
V
Output Current at 25 °C
V
I
I
I
2
LOCAL AMBIEMT TEMPERATURE, T
= 75 V
= 48 V
= 36 V
20
3
OUTPUT CURRENT, I
30
4
40
5
dc-dc Converters: 36 to 75 Vdc Input, 2.5 Vdc Output; 25 W to 50 W
50
6
3.0 m/s (600 ft./min.)
2.0 m/s (400 ft./min.)
1.0 m/s (200 ft./min.)
0.1 m/s (20 ft./min.)
NATURAL
CONVECTION
60
(continued)
7
O
70
(A)
8
80
(continued)
A
(°C)
9
8-2318 (F).a
90 100
1-0063
10
Figure 26. QHW075G1 Power Dissipation vs.
Figure 27. QHW100G1 Power Dissipation vs.
11
10
8
7
6
5
4
3
2
9
8
7
6
5
4
3
2
1
3
2
Output Current at 25 °C
Output Current at 25 °C
V
V
V
V
V
V
4 5 6 7 8
I
I
I
I
I
I
3
= 75 V
= 48 V
= 36 V
= 75 V
= 48 V
= 36 V
4
OUTPUT CURRENT, I
OUTPUT CURRENT, I
5
6
9 10 11 12 13 14 15 16 17 18 19 20
7
8
9 10
O
O
11 12 13 14 15
(A)
(A)
8-3374 (F)
1-0064
13