ALQ15XX48X Datasheet, PDF (5/19 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)
Electrical Specifications (continued)
OUTPUT SPECIFICATIONS
Parameter
Device Symbol
Min
Load Regulation⁴
5.0V
-
Conditions: I_O = 1A to I_O,max;
3.3V
-
V_IN =V_IN,nom
2.5V
-
1.8V
-
1.5V
-
Cross Regulation⁴
All
-
Conditions: V_IN = V_IN,nom, I_O = I_O,max
Temperature
Conditions: T_A = -40 ºC to +65 ºC;
All
-
V_IN = V_IN,nom; I_O = I_O,max
Output Ripple and Noise:
5.0
-
Peak-to-Peak⁵
3.3
-
Conditions: I_O = I_O,max; V_IN =V_IN,nom;
2.5
-
BW = 20 MHz;
1.8
-
T_A =25 ^oC
1.5
-
External Load Capacitance⁶
All
-
Over Current Limit Inception
Conditions: Vo = 90% V_O,nom;
I_O2 = I_O,min; V_IN = V_IN,nom
Characteristics: Hiccup mode,
All
5.0V
I_O,OCP
I_O,OCP
16.5
13.2
auto-recovery
Output Short Circuit
Conditions: V_IN = V_IN,nom; I_O2 = 0A
All
I_OPK
-
T_A = 25 ºC
I_ORMS
I_ODC
I_INS
Efficiency
AF
η
89.0
Conditions: V_IN = V_IN,nom; T_A = 25 ºC
FG
η
87.0
P_O = P_O,max, balanced
FY
η
86.0
current loading
GM
η
83.0
Switching Frequency
All
-
-
Note: Can be determined from output
ripple waveform
Typ
Max
Unit
0.06
0.40
%Vo
0.12
0.60
0.20
0.70
0.26
0.90
0.33
1.00
-
0.20
%Vo
-
1.50
%Vo
12
25
mV_PK-PK
12
25
12
25
18
30
18
30
-
10000
µF
-
25
A
-
22
-
28
A_PK
5
A_RMS
1
A
150
mA
89.5
90.5
%
87.7
88.5
86.5
87.5
84.0
85.0
300
375
KHz
NOTE: 4. Channel under test shall follow the specified conditions while the other channel is set to min load, 0A.
5. Channel under test shall be set to full load with the other channel set to I_{O, min} - See Fig 2 for the
recommended output ripple and noise test setup.
6. Refer to YSC plots on Fig 19 and 20 to determine loop stability at various output load impedance.
MODEL: ALQ15 SERIES
MARCH 4, 2004 - REVISION 01
SHEET 5 OF 19