ALQ25_03 Datasheet, PDF (4/15 Pages) Astec America, Inc – Single Output Open-Frame DC-DC Converter Module Industry Standard ¼ Brick: 36V-75V Input / 5V Output

Technical Reference Notes
ALQ25 Series
(Open Frame Single Output Quarter Brick)
INPUT SPECIFICATION
Parameter
Device Symbol
Min
Typ
Max
Unit
Operating Input Voltage
All
V_IN
36
48
75
V_{D C}
Input Under-Voltage Lock-out
All
T_ON Threshold
31
34
36
Vdc
T_OFF Threshold
30
33
35
Maximum Input Current¹
A (5.0V)
I_IN,max
-
-
6
A
Conditions: V_IN =V_IN,min
I_O = I_O,max; T_A = 25 º C
Max P_DISS @ I_O = 0A (V_IN = V_IN,NOM)
A (5.0V)
-
-
7.5
W
Input Reflected Ripple Current²
Conditions: P_O = P_O,max; T_A = 25 ºC
BW: 5Hz to 20MHz
All
I_I1/ I_I2
-
-
260
mA _{P K -PK}
Note: 1. An input line fuse is recommended for use.
2. External input capacitance required. See Input Ripple Current test measurement setup on Fig 1.
OUTPUT SPECIFICATIONS
Parameter
Output Voltage Set point
V_IN = V_{IN, min} to V_{IN, max;}
I_O =I_O,Max
Output Regulation
Line: V_IN = V_{IN, Min} to V_{IN, Max}
Load: I_O = I_{O, Min} to I_{O, Max}
Temperature: Ta = -40 ºC to
+85ºC
Ripple and Noise³
Peak-to-Peak: (5Hz to 20MHz)
Output Current⁴
External Load Capacitance
Output Current-limit Inception
V_OUT = 90% V_O,SET
Device Symbol
Min
Typ
Max
Unit
A (5.0V) V_O,SET
4.9
5.0
5.1
Vdc
A (5.0V)
-
A (5.0V)
-
-
A (5V)
-
A (5V)
I_O
A (5V)
-
A (5V)
I_O
-
0.1
0.2
% Vo
-
0.2
0.4
% Vo
-
-
0.02
% / °C
150
mVp-p
0
-
25
A
470
-
8000
µF
27.5
-
35
A
MODEL: ALQ25 SERIES
Dec 1, 2003 - REVISION B
SHEET 4 OF 15