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
Input UVLO
Efficiency
2
36 to 75 VDC
100V /100ms
33 - 36 V (UVLO ON)
31 - 34 V (UVLO OFF)
93% @ 5 V (typical)
Output
Line / Load Regulation
Load Current
Noise/Ripple
1
< 0.1% V
O
(typical)
Up to 25A for Vo
≤
1.8V
20mV
PK-PK
(typical for Vo
≤
2.5V )
2% typical deviation
(50% to 75% Step Load)
< 100µs settling time (typ)
130% V
O
Typ (autorecovery)
130% I
O,max
Typ (autorecovery)
115ºC average PCB temperature
(autorecovery)
Fixed Frequency
1500Vdc
Special Features
•
•
•
•
•
•
•
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 Frequency Switching for EMI predictability
Industry Standard features: Input UVLO with
hysteresis, Enable, OVP, OCP, OTP, Output
VoltageTrim, Differential Remote Sense
• Meets Basic Insulation
• EU Directive 2002/95/EC compliant for RoHS
Transient Response
Over Voltage Protection
Over Current Protection
Over Temperature
Protection
Switching Frequency
Isolation Voltage
Control
Output Voltage Trim
Enable
±10% V
O,NOM
TTL compatible
(Positive or Negative Logic)
Environmental
Operating Ambient Temperature
Openframe: -40°C to +85°C Ambient
Baseplate: -40°C to +100°C Case
Storage temperature: -55°C to +125°C
MTBF: > 1 Million Hrs
Safety
UL, cUL 60950-1 Recognized
TUV EN60950-1 Licensed
2
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
36V
36V
36V
36V
36V
36V
to
to
to
to
to
to
to
75V
75V
75V
75V
75V
75V
75V
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
2
93.0%
92.0%
91.0%
90.0%
88.5%
86.5%
85.5%
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)(L)
(6)(S)(L)
(6)(S)(L)
(6)(S)(L)
(6)(S)(L)
(6)(S)(L)
(6)(S)(L)
OPTIONS:
(X) : “L” =
“E” =
(N) : "N" =
(6) : “-6” =
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)
(S) : “-S”= Surface Mount Termination (default is Through Hole Termination with no suffix “-S” required)
7
(L) : “L” = RoHS compliant (RoHS 6) / “Blank” - RoHS compliant with Lead (PB) in solder exemption (RoHS 5)
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. Measured at 20 MHz bandwidth with external 10
µ
F
tant. capacitor in parallel with 0.1
µ
F ceramic
capacitor connected across +Vout and -Vout; 220
µ
F
e-cap or equivalent connected across +Vin and -Vin.
2. Efficiency measurements taken at full load, nominal
line and TA = 25°C.
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 when available.
7. AEOxxxxxx-Sx series (surface mount terminated with
baseplate) are not reflow compatible.
8. Warranty 2 yrs.
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 02: MARCH 7, 2007).
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
A
Std Pin Length: 0.189 [4.8] MIN
0.205 [5.2] MAX
“-6” Option:
0.137 [3.5] MIN
0.152 [3.9] MAX
AEO -BASEPLATE
0.15
[3.8]
2.00
[50.8]
0.15
[3.8]
0.30
[7.6]
Astec Industry Standard
0.45
[11.4]
0.75
[19.0]
0.45
[11.4]
0.60
[15.2]
0.75
[19.0]
PIN 1
PIN 8
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
www.astecpower.com
3
PCB Design
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