Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16th Brick)
Performance Curves
5V Version
Power Dissipation vs. Output Current, TA=25°C
Efficiency vs. Output Current, TA=25°C
95%
90%
85%
80%
75%
70%
65%
60%
55%
10
Vin = 36 Vdc
Vin = 48 Vdc
Vin = 75 Vdc
8
6
4
Vin = 36Vdc
Vin = 48Vdc
Vin = 75Vdc
2
0
0
2
4
6
8
10
12
0
2
4
6
8
10
12
Output Current (Amps)
Output Current (Amps)
Figure 6. 5V Efficiency vs. output current at various
Figure 7. 5V Power Dissipation vs. load current at
input line conditions, TA = 25°C.
various input line conditions, TA = 25°C.
Figure 8. 5V Startup Characteristic at VIN = 48Vdc, IO =
Figure 9. 5V Output Ripple at VIN = 48Vdc, IO = Full
Full Load, TA = 25°C.
Load, TA = 25°C.
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
SHEET 8 OF 20
ASTEC [ Astec America, Inc ]
