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QM48T50012 DC-DC Converter Data Sheet
36-75 VDC Input; 1.2 VDC @ 50A Output
0.95
0.90
0.85
0.80
0.95
0.90
0.85
0.80
0.75
72 V
48 V
0.75
72 V
48 V
0.70
0.65
Iout2 = 7.5 Adc
36 V
0.70
0.65
Iout2 = 7.5 Adc
36 V
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
16
Load Current Iout1 [Adc]
Fig. 12: Efficiency vs. load current Iout1 and input voltage for
converter mounted vertically with air flowing from pin 3 to pin 1
at a rate of 300 LFM (1.5 m/s), for Iout2 = 7.5 A and Ta = 25 ° C.
0.95
0.90
0.85
0.80
Load Current Iout1 [Adc]
Fig. 13: Efficiency vs. load current Iout1 and input voltage for
converter mounted horizontally with air flowing from pin 3 to pin
1 at a rate of 300 LFM (1.5 m/s), for Iout2 = 7.5 A and Ta =
25 ° C.
0.95
0.90
0.85
0.80
0.75
0.70
0.65
Iout1 = 7.5 Adc
72 V
48 V
36 V
0.75
0.70
0.65
Iout1 = 7.5 Adc
72 V
48 V
36 V
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
16
Load Current Iout2 [Adc]
Fig. 14: Efficiency vs. load current Iout2 and input voltage for
converter mounted vertically with air flowing from pin 3 to pin 1
at a rate of 300 LFM (1.5 m/s), for Iout1 = 7.5 A and Ta = 25 ° C.
Load Current Iout2 [Adc]
Fig. 15: Efficiency vs. load current Iout2 and input voltage for
converter mounted horizontally with air flowing from pin 3 to pin
1 at a rate of 300 LFM (1.5 m/s), for Iout1 = 7.5 A and Ta =
25 ° C.
MAY 08, 2003 revised to NOV 13, 2006
Page 10 of 15
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