Datasheet
TRA 1 Series
Application Note
http://www.tracopower.com Page 20 of 35
Characteristic Curves
All test conditions are at 25℃ The gures are identical for TRA 1-1222
30
40
50
60
70
80
90
20 40 60 80 100
% of Full Load
Efficiency(%)
10.8V
12V
13.2V
60
70
80
90
100
10.8 12.0 13.2
Input Voltage(V)
Efficiency(%)
Efciency Versus Output Current Efciency Versus Input Voltage. Full Load
Typical Output Ripple and Noise.
V
in
=V
in nom
; Full Load; T
A
Typical Input Start-Up and Output Rise Characteristic
V
in
=V
in nom
; Full Load
~
]
Ambient Temperature
Output Power (%)
0
20
40
60
80
100
-40 50 60 80 100 110
9070
400LFM
200LFM
Natural
convection
100LFM
Derating Output Current Versus Ambient Temperature and Airow
V
in
=V
in nom
Conduction Emission of EN55022 Class A
V
in
=V
in nom
; Full Load