Astec Industry Standard
66Watts
AEO/ALO25
High Efficiency
Total Power:
Input Voltages:
No. of Outputs:
66 Watts
48V
Single
Electrical Specs
Input
Input Range
Input Surge
Efficiency
1
36 to 75 VDC
100V /100ms
1.8V @ 90% (typical)
Output
Line / Load Regulation
Load Current
Ripple and Noise
2
Transient Response
< 0.1% V
O
Up to 25A for Vo 1.8V
20mV
PK-PK
at 1.8V
O
(typical)
2% typical deviation
50% to 75% step load
250ms settling time (typical)
130% V
O
Typ (autorecovery)
120% I
O,max
Typ (autorecovery)
110ºC average PCB temperature
(autorecovery)
Fixed Frequency
1500Vdc
Special Features
Over Voltage Protection
2.3” x 0.9” Industry Standard 8th brick outline
Baseplate or Openframe construction
Low Ripple and Noise
Regulation to zero load
High Capacitive Load start-up
Fixed Switching Frequency
Industry Standard features: Input UVLO with
hysteresis, Enable, OVP, OCP, OTP, Output
VoltageTrim, Differential Remote Sense
• Meets Basic Insulation
•
•
•
•
•
•
•
Over Current Protection
Over Temperature
Protection
Switching Frequency
Isolation Voltage
Control
Output Voltage Trim
Enable
±10% V
O
TTL compatible
(Positive or Negative Logic)
Environmental
Operating ambient temperature: -40°C to +85°C
Storage temperature: -55°C to +125°C
MTBF: >1 million hours
Safety
UL, cUL 60950 Recognized
TUV EN60950 Licensed
1
North America (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211
Asia (HK): 852-2437-9662
AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
ASIA
Units 2111-2116, Level 21
Tower1, Metroplaza
223, Hing Fong Road
Fwai Fong, New Territories
Hong Kong
Telephone: 852-2437-9662
Facsimile: 852-2402-4426
AEO / ALO25
Ordering Information
Input Voltage
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
36V to 75V
OPTIONS:
(X) : “L” =
“E” =
(N) : "N" =
(6) : “-6”=
(S) : “-S”=
Output Voltage
12.0V
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
Output Current
4A
12A
20A
20A
25A
25A
25A
Efficiency
1
93.0%
93.0%
91.0%
90.0%
90.0%
88.5%
87.0%
Model Number
A(X)O04B48 (N)
A(X)O12A48 (N)
A(X)O20F48 (N)
A(X)O20G48 (N)
A(X)O25Y48 (N)
A(X)O25M48(N)
A(X)O25K48 (N)
-
-
-
-
-
-
-
(6)(S)
(6)(S)
(6)(S)
(6)(S)
(6)(S)
(6)(S)
(6)(S)
Open Frame / Low Profile
Baseplate Construction
designates Negative Logic Enable (default is Positive Enable with no suffix “N” required)
3.7mm nominal pin length (default is 5mm nominal pin length with no suffix “-6” required)
Surface Mount Termination (default is Through Hole Termination with no suffix “-S” required)
Pin Assignment
Single Output
1. +Vin
2. Enable (On/Off)
3. -Vin
4. -V
OUT
5. -Sense
6. Trim
7. +Sense
8. +V
OUT
Notes:
1. Efficiency measurements taken at full load, nominal
line and TA = 25°C.
2. 20 MHz bandwidth. External 10 uF tant. capacitor in
parallel with 1 uF ceramic capacitor placed across
the output and secondary return ground.
3. All specifications are typical at nominal line, full load
and TA = 25°C unless otherwise noted.
4. All specifications subject to change without notice.
5. Mechanical drawings are for reference only.
Dimensions are in inches [mm]. Pin placement
tolerance ± 0.005 [0.127]. Mechanical Tolerance ±
0.02 [0.5], recommended surface mount pads (min:
0.080 x 0.112 [2.03 x 2.84] / max: 0092 x 0.124 [2.34
x 3.15]); through hole pin diameter (Pins 4 & 8)
=
0.062 [1.57], others = 0.04 [1.0] (6X).
6. Technical Reference Notes should be consulted for
detailed information.
7. Warranty: 1yr.
* Astec reserves the right to make changes to the information
contained herein without notice and assumes no liability as a
result of its use and application. (REV G: AUGUST 25, 2005).
0.45
[11.4]
0.75
[19.1]
0.15
[3.8]
ALO - OPENFRAME
2.19
[55.5]
0.15
[3.8]
0.30
[7.6]
0.45
[11.4] 0.60
[15.2] 0.75
[19.1]
SMT - Termination
0.31
[7.9]
0.15
[3.9]
TH - Termination
0.32
[8.2]
PIN LENGTH
See
A
Std Pin Length: 0.189
0.205
“-6” Option:
0.137
0.152
0.15
[3.8]
A
[4.8]
[5.2]
[3.5]
[3.9]
MIN
MAX
MIN
MAX
AEO -BASEPLATE
0.15
[3.8]
0.45
[11.4]
0.75
[19.0]
2.00
[50.8]
0.30
[7.6]
0.45
[11.4]
Astec Industry Standard
0.60
[15.2]
0.75
[19.0]
SMT - Termination
0.39
[9.8]
0.15
[3.9]
PIN SIDE DOWN
TH - Termination
0.40
[10.1]
0.23
[5.8]
See
A
0.15
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