參數(shù)資料
型號(hào)： QM48T14120-NBCP
廠商： POWER-ONE INC
元件分類： 電源模塊
英文描述： 1-OUTPUT 168 W DC-DC REG PWR SUPPLY MODULE
封裝： QUARTER BRICK, PACKAGE-8
文件頁(yè)數(shù)： 20/20頁(yè)
文件大?。?/td> 306K
代理商： QM48T14120-NBCP
ZD-00376 Rev. 1.1.1, 19-Feb-10
Page 9 of 20
www.power-one.com
QM48T/S14120 DC-DC Converter Data Sheet
36-75 VDC Input; 12 VDC @ 14 A Output
QM48T/S14120-wxy0 (Non-parallelable version)
Ambient Temperature [°C]
20
30
40
50
60
70
80
90
Lo
ad
C
u
rr
en
t
[
A
dc
]
0
4
8
12
16
500 LFM (2.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
30 LFM (0.15 m/s)
Fig. 1: Available load current vs. ambient air temperature and
airflow rates for converter with B height pins mounted
vertically with air flowing from pin 3 to pin 1, MOSFET
temperature
120 C, Vin = 48 V.
Load Current [Adc]
03
69
12
15
Ef
fi
ci
en
cy
0.60
0.70
0.80
0.90
1.00
72 V
48 V
36 V
Fig. 3:
Efficiency vs. load current 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) and Ta = 25
C.
Ambient Temperature [°C]
20
30
40
50
60
70
80
90
Lo
ad
Curre
nt
[A
dc
]
0
4
8
12
16
500 LFM (2.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
30 LFM (0.15 m/s)
Fig. 2: Available load current vs. ambient air temperature and
airflow rates for converter with B height pins mounted
horizontally with air flowing from pin 3 to pin 1, MOSFET
temperature
120 C, Vin = 48 V.
Load Current [Adc]
03
69
12
15
Ef
fi
ci
en
cy
0.60
0.70
0.80
0.90
1.00
70 C
55 C
40 C
Fig. 4: Efficiency vs. load current and ambient temperature
for converter mounted vertically with Vin = 48 V and air
flowing from pin 3 to pin 1 at a rate of 200 LFM (1.0 m/s).
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