ALD18 ASTEC [Astec America, Inc], ALD18 Datasheet - Page 12

• Manufacturer Part Number: ALD18
• Description: Single Output 16th Brick: 60Watts
• Manufacturer: ASTEC [Astec America, Inc]

Performance Curves
2.5V Version (continued)
1.8V Version
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
Figure 22. 2.5V Output current vs. ambient temperature
curves at V
Figure 24. 1.8V Efficiency vs. output current at various
input line conditions, T
20
15
10
95%
90%
85%
80%
75%
70%
65%
60%
55%
5
0
25
0
Efficiency vs. Output Current, T
ALD20G48 Current vs. Tem perature
IN
= 48Vdc.
0 LFM
1 00 LFM
200 LFM
300 LFM
400 LFM
5
40
Ambient Tem perature (°C)
Output Current (Amps)
A
= 25 C.
10
55
15
Technical Reference Notes
A
=25°C
ALD12/18/20/25 Series
(Single Output 16
Vin = 36Vdc
Vin = 48Vdc
Vin = 75Vdc
70
20
25
85
th
Figure 23. 2.5V Transient Response 50% to 75% step at
V
Figure 25. 1.8V Power Dissipation vs. load current at
various input line conditions, T
Brick)
IN
10
= 48Vdc, T
Power Dissipation vs. Output Current, T
8
6
4
2
0
0
A
5
= 25 C, di/dt = 0.1A/ s, C
Vin = 36 Vdc
Vin = 48 Vdc
Vin = 75 Vdc
Output Current (Amps)
10
A
= 25 C.
15
O
20
= 0.
A
SHEET 12 OF 20
=25°C
25