SQE48T40018 DC-DC Converter
36-75 VDC Input; 1.8 VDC @ 40 A Output
Data Sheet
The input reflected-ripple current waveforms are
obtained using the test setup shown in Figure 11. The
40
35
30
corresponding waveforms are shown in Figure 12 and
Figure 13.
25
20
NC ~ 30 LFM (0.15 m/s)
100 LFM (0.5 m/s)
200 LFM (1 m/s)
300 LFM (1.5 m/s)
400 LFM (2 m/s)
500 LFM (2.5 m/s)
20
30
40
50
60
70
80
90
Ambient Temperature, C
Figure 1. Available load current vs. ambient air temperature and airflow rates for SQE48T40018 converter mounted vertically with air
flowing from pin 3 to pin 1, MOSFET temperature ? 120 ? C, Vin = 48 V. Note: NC – Natural convection
95
95
90
90
85
80
36V
48V
65V
85
40C
55C
70C
75
72V
80
85C
0
10
20
30
40
0
10
20
30
40
Load Current, A
Figure 2. Efficiency vs. load current and input voltage for
SQE48T40018 converter mounted vertically with air
flowing from pin 3 to pin 1 at 300 LFM (1.5 m/s) and
Ta=25 ? C.
Load Current, A
Figure 3. Efficiency vs. load current and ambient
temperature for SQE48T40018 converter mounted
vertically with Vin=48V and air flowing from pin 3
to pin 1 at 200LFM (1.0m/s).
ZD-01744 Rev 1.1.1, 23-Feb-10
www.power-one.com
Page 10 of 13
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相关代理商/技术参数
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