Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16
th
Brick)
Electrical Specifications
ABSOLUTE MAXIMUM RATINGS
Stresses in excess of the absolute maximum ratings can cause permanent damage to the converter. Functional operation of
the device is converter is not implied at these or any other conditions in excess of those given in the operational section of
the specs. Exposure to absolute maximum ratings for extended period can adversely affect device reliability.
Parameter
Input Voltage
1
Continuous
Transient (100ms)
Isolation Voltage
Input to Output
Operating Temperature
Storage Temperature
Operating Humidity
Max Voltage at Enable Pin
Max Output Power
Device
All
Symbol
V
IN
V
IN, trans
All
All
All
All
All
A (5V0)
F (3V3)
G (2V5)
Y (1V8)
M (1V5)
K (1V2)
Min
-0.3
-
1500
-40
-40
10
-0.6
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
-
-
-
-
-
-
Max
75
100
-
85
125
85
25
60
60
50
45
38
30
Unit
Vdc
Ta
T
STG
-
Vdc
ºC
ºC
%
Vdc
W
W
W
W
W
W
INPUT SPECIFICATIONS
Parameter
Operating Input Voltage Range
Input Under-Voltage Lock-out
T_ON Threshold
T_OFF Threshold
Input Current
1
(V
IN
= V
IN, Min
; I
O
= I
O, Max
)
Device
All
All
Symbol
V
IN
Min
36
34.0
31.0
-
-
-
-
Typ
48
34.8
32.5
-
-
-
-
Max
75
36.0
33.5
2.4
2.4
1.9
1.6
1.4
1.1
4.1
3.9
3.4
3.4
3.4
2.6
10
-
1
Unit
Vdc
Vdc
A
Max P
diss
@ I
O
= 0A
(V
IN
= V
IN, Nom
; T
A
≥
25°C)
Input Ripple Current
2
5Hz to 20MHz
Input Voltage Rise Time
10% to 90% of Vout
Inrush Current
5V0 (A)
3V3 (F)
2V5 (G)
1V8 (Y)
1V5 (M)
1V2 (K)
5V0 (A)
3V3 (F)
2V5 (G)
1V8 (Y)
1V5 (M)
1V2 (K)
All
All
All
I
IN-MAX
-
-
-
-
-
-
-
-
W
I
I1
-
-
-
1
-
mAp-p
V/ms
A
2
/s
I
2
/s
-
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
SHEET 2 OF 20
ASTEC [ Astec America, Inc ]
