QHW075F1-Q Lineage Power, QHW075F1-Q Datasheet - Page 13

• Manufacturer Part Number: QHW075F1-Q
• Description: CONVRTR DC/DC 3.3V 49.5W OUT
• Manufacturer: Lineage Power
• Series: QHWr
• Type: Isolated with Remote On/Offr

Specifications of QHW075F1-Q

• Output: 3.3V
• Number Of Outputs: 1
• Power (watts): 50W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: 8-DIP Module
• 1st Output: 3.3 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: 50W
• 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: -

Data Sheet
April 2008
Thermal Considerations
Heat Transfer Without Heat Sinks
Figure 25. Forced Convection Power Derating with
Figure 26. Forced Convection Power Derating with
Lineage Power
20
15
10
20
15
10
5
0
5
0
0
0
10
10
No Heat Sink; Transverse Orientation
No Heat Sink; Longitudinal Orientation
LOCAL AMBIENT TEMPERATURE, T
LOCAL AMBIENT TEMPERATURE, T
20
20
30
30
40
40
dc-dc Converters: 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 66 W
50
50
QHW050F1-Q, QHW075F1-Q, and QHW100F1-Q Power Modules;
60
60
(continued)
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
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
70
70
80
80
A
A
(continued)
(°C)
(°C)
90 100
90 100
8-2321(F).a
8-2318(F).b
Figure 27. QHW050F1-Q Power Dissipation vs.
Figure 28. QHW075F1-Q Power Dissipation vs.
10
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
1
1.5
Output Current at 25 °C
Output Current at 25 °C
2
3
4.5
3
OUTPUT CURRENT, I
OUTPUT CURRENT, I
4
6
7.5
5
6
9
10.5
7
O
O
(A)
(A)
V
V
V
8
12
I
I
I
V
V
V
= 75 V
= 48 V
= 36 V
I
I
I
= 75 V
= 48 V
= 36 V
13.5 15
9
8-3270(F)
8-3459(F)
10
13