ALQ15XX48X Datasheet, PDF (12/19 Pages) Astec America, Inc – Industry Standard ¼ Brick: 36V-75V Input / 60W Output Power

Technical Reference Notes
ALQ15XX48X Series
(Open Frame Dual Output Quarter Brick)
Performance Curves (continued)
ALQ15AF48 (5.0V / 3.3V) SERIES
95
90
85
80
75
70
65
60
55
50
5
5V/3.3V Efficiency @ P_O1 = P_O2
36Vin
48Vin
75Vin
10 15 20 25 30 35 40 45 50 55 60
TOTAL OUTPUT POWER [W]
Figure 9. Efficiency at balanced power (P_O1 = P_O2) for
various input voltages; taken at T_A=25ºC with the
converter mounted vertically and with 100LFM airflow
directed from Pin 3 to Pin 1.
5V/3.3V Efficiency @ Balanced Current
95
90
85
80
75
70
65
60
0
36Vin
48Vin
75Vin
1
2
3
4
5
6
7
LOAD CURRENT I_O1 = I_O2 [A]
Figure 10. Efficiency curve for balanced output current
(I_O1 = I_O2) at various input voltages; taken at T_A=25ºC
with the converter mounted vertically and with 100LFM
airflow directed from Pin 3 to Pin 1.
ALQ15FY48 (3.3V / 1.8V) SERIES
3.3V/1.8V Efficiency @ P_O1 = P_O2
90
85
80
75
70
65
36Vin
60
48Vin
55
75Vin
50
5 10 15 20 25 30 35 40 45 50 55 60
TOTAL OUTPUT POWER [W]
Figure 11. Efficiency at balanced power (P_O1 = P_O2) for
various input voltages; taken at T_A=25ºC with the
converter mounted vertically and with 300LFM airflow
directed from Pin 3 to Pin 1.
3.3V/1.8V Efficiency @ Balanced Current
90
85
80
75
70
65
36Vin
48Vin
60
75Vin
55
0
2
4
6
8
10
12
LOAD CURRENT I_O1 = I_O2 [A]
Figure 12. Efficiency curve for balanced output current
(I_O1 = I_O2) at various input voltages; taken at T_A=25ºC
with the converter mounted vertically and with 300LFM
airflow directed from Pin 3 to Pin 1.
MODEL: ALQ15 SERIES
MARCH 4, 2004 - REVISION 01
SHEET 12 OF 19