Technical Reference Notes
ALQ25 Series
(Open Frame Single Output Quarter Brick)
FEATURE SPECIFICATION
Parameter
Output Enable ON/OFF
10
Negative Enable ("N" suffix)
Enable Pin voltage for Module ON
Module OFF
Positive Enable (No suffix)
Enable Pin voltage for Module ON
Module OFF
Output Voltage Remote Sensing
11,13
Output Voltage Trim Range
12,13
Note:
Device
N
suffix
Symbol
-
-
Min
-0.7
3.5
Typ
-
-
Max
1.2
12
Unit
V
V
No
suffix
All
All
-
-
-
3.5
-0.7
-
90
-
-
-
12
1.2
10
110
V
% V
O
% V
O
10. See Basic Operation and feature section for the recommended/ appropriate Module Enable configuration.
11. The sense pins can be used to compensate for any voltage drops (per indicated max limits) that may
occur along the connection between the output pins to the load. Pin 7 (+Sense) and Pin 5
(-Sense) should be connected to Pin 8 (+Vout) and Pin 4 (Return) respectively at the point where
regulation is desired.
12. Refer to Equation (1) and (2) and Figures 3 and 4 for the Output Trim Adjust configuration.
13. The combination of remote sense and Trim adjust cannot exceed 110% of V
O, NOM
.
ISOLATION SPECIFICATION
Parameter
Isolation Capacitance
Isolation Resistance
Device
All
All
Symbol
-
-
Min
-
10
Typ
1000
1000
Max
-
-
Unit
pF
MΩ
SAFETY APPROVAL
The ALQ25 series have been certified through:
•
UL + cUL 60950, Third Edition - Recognized
•
EN 60950 through TUV-PS
•
Basic Insulation
MODEL: ALQ25 SERIES
Dec 1, 2003 - REVISION B
SHEET 6 OF 15
ASTEC [ Astec America, Inc ]
