Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16th Brick)
Performance Curves
1.5V Version (continued)
Output Current vs. Temperature
25
20
15
10
5
0 LFM (0 m/s)
10 0 L F M ( 0 . 5 m / s )
200 LFM (1m/s)
400 LFM (3 m/s)
0
25
40
55
70
85
Ambient Temperature [°C]
Figure 34. 1.5V Output current vs. ambient temperature
curves at VIN = 48Vdc.
Figure 35. 1.5V Output Transient Response 50% to 75%
step at VIN = 48Vdc, TA = 25°C, di/dt = 0.1A/µs, CO = 0.
1.2V Version
Power Dissipation vs. Output Curtret, TA=25°C
Efficiency vs. Output Current, TA=25°C
10
95%
Vin = 36Vdc
90%
85%
80%
75%
70%
Vin = 48Vdc
8
Vin = 75Vdc
6
4
2
0
Vin = 36Vdc
Vin = 48Vdc
Vin = 75Vdc
65%
60%
55%
0
5
10
15
20
25
0
5
10
15
20
25
Output Current [A]
Output Current [A]
Figure 36. 1.2V Efficiency vs. output current at various
Figure 37. 1.2V Power dissipation vs. output current at
input line voltage, TA = 25°C.
various input line conditions, TA = 25°C.
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
SHEET 15 OF 20
ASTEC [ Astec America, Inc ]
