QM48T14120-NDB0G POWER ONE, QM48T14120-NDB0G Datasheet - Page 13

• Manufacturer Part Number: QM48T14120-NDB0G
• Description: DC/DC Converters & Regulators
• Manufacturer: POWER ONE
• Type: Step Downr

Specifications of QM48T14120-NDB0G

• Output Power: 168W
• Output Current: 14A
• Input Voltage: 48V
• Output Voltage: 12V
• Screening Level: Industrial
• Product Length (mm): 36.83mm
• Product Height (mm): 7.08mm
• Product Depth (mm): 58.42mm
• Mounting Style: Through Hole
• Pin Count: 8
• Number Of Outputs: 1
• Package / Case: Quarter-Brick
• Product: Isolated
• Input Voltage Range: 36 V to 75 V
• Input Voltage (nominal): 48 V
• Output Voltage (channel 1): 12 V
• Output Current (channel 1): 14 A
• Isolation Voltage: 2000 V
• Package / Case Size: Quarter Brick
• Lead Free Status / RoHS Status: Compliant
• Lead Free Status / RoHS Status: Compliant

QM48T/S14120-wxyP (Parallelable version)
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.
Fig. 3:
converter mounted
pin 1 at a rate of 300 LFM (1.5 m/s) and Ta = 25 C.
ZD-00376 Rev. 1.1.1, 19-Feb-10
1.00
0.90
0.80
0.70
0.60
16
12
8
4
0
20
0
Efficiency vs. load current and input voltage for
30
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)
3
horizontally
40
Ambient Temperature [°C]
Load Current [Adc]
6
50
with air flowing from pin 3 to
60
9
70
12
80
72 V
48 V
36 V
QM48T/S14120 DC-DC Converter Data Sheet
90
15
Page 13 of 20
36-75 VDC Input; 12 VDC @ 14 A Output
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.
Fig. 4: Efficiency vs. load current and ambient temperature
for converter mounted
flowing from pin 3 to pin 1 at a rate of 200 LFM (1.0 m/s).
1.00
0.90
0.80
0.70
0.60
16
12
8
4
0
20
0
30
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)
3
40
Ambient Temperature [°C]
horizontally
Load Current [Adc]
6
50
60
with Vin = 48 V and air
www.power-one.com
9
70
12
80
70 C
55 C
40 C
90
15