Data Sheet
QPW050/060 Series Power Modules; DC-DC converters
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output
March 27, 2008
Characteristic Curves
The following figures provide typical characteristics for the QPW060A0P (1.2V, 60A) at 25ºC. The figures are
identical for either positive or negative Remote On/Off logic.
3
Io = 60 A
2.5
Io = 30 A
2
Io = 0 A
1.5
1
0.5
0
25
35
45
55
65
75
INPUT VOLTAGE, VO (V)
TIME, t (2.5 ms/div)
Figure 25. Typical Input Characteristic at Room
Temperature.
Figure 28. Typical Start-Up Using Remote On/Off,
negative logic version shown.
90
89
88
87
86
85
84
83
Vi = 36 V
Vi = 48 V
82
81
80
Vi = 75 V
5
10 15 20 25 30 35 40 45 50 55 60
OUTPUT CURRENT, IO (A)
TIME, t (500 μs/div)
Figure 26. Typical Converter Efficiency Vs. Output
current at Room Temperature.
Figure 29. Typical Transient Response to Step
change in Load from 50% to 25%of Full Load at
Room Temperature and 48 Vdc Input.
75 Vin
48 Vin
36 Vin
TIME, t (500 μs/div)
TIME, t (2.5μs/div)
Figure 27. Typical Output Ripple and Noise at Room
Temperature and Io = Io, max
Figure 30. Typical Transient Response to Step change
in Load from 50% to 75% of Full Load at Room
Temperature and 48 Vdc Input.
.
LINEAGE POWER
10
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
