Datasheet

TEP 75WI Series
Application Note
http://www.tracopower.com Page 21 of 69
Characteristic Curves
All test conditions are at 25C°.The gures are identical for TEP 75-4810WI
50.0
52.5
55.0
57.5
60.0
62.5
65.0
67.5
70.0
72.5
75.0
77.5
80.0
82.5
85.0
87.5
90.0
92.5
95.0
10 20 30 40 50 60 70 80 90 100
% of FULL LOAD
EFFICIENCY(%)
Vin= 18V
Vin= 24V
Vin= 48V
Vin= 75V
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
10 20 30 40 50 60 70 80 90 100
% of FULL LOAD
Power Dissipation(W)
Vin= 18V
Vin= 24V
Vin= 48V
Vin= 75V
Efciency versus Output Current Power Dissipation versus Output Current
60.0
62.5
65.0
67.5
70.0
72.5
75.0
77.5
80.0
82.5
85.0
87.5
90.0
92.5
95.0
18 24 30 36 42 48 54 60 66 72 75
INPUT VOLTAGE(V)
EFFICIENCY(%)
Iout= 100% F.L
Iout= 50% F.L
Iout= 25% F.L
Efciency versus Input Voltage. Full Load
Derating Output Current versus Ambient Temperature with
Airow , Vin = Vin(nom)
Derating Output Current Versus Ambient Temperature with
0.24” Heat-Sink and Airow , Vin = Vin(nom)
Derating Output Current Versus Ambient Temperature with
0.45” Heat-Sink and Airow , Vin = Vin(nom)