North America (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211Asia (HK): 852-2437-9662
2
Electrical Specs
Special Features
80Amps
AEH80
ALH80
(Open Frame)
Ultra High Efficiency
Ultra High efficiency, 1.8V@87% (Typical)
Open Frame (ALH80) and Baseplate (AEH80)
Redundant In-line Output Pins Option
Positive and Negative enable function
Low output ripple and noise
High capacitive load limit on start-up
Remote sense compensation
Regulation to zero load
Fixed frequency switching (200 kHz)
Environmental
Operating temperature
-40C to +100C Baseplate (AEH80)
-40C to +85C Ambient Air (ALH80)
Storage temperature: -55C to +125C
Overtemperature protection: 115C PCB
Temperature (Typical)
MTBF: >1 million hours
Input
Input range
36-75 VDC
Input Surge
100V / 100ms
Efficiency
87%@1.8V (Typical)
Control
Enable
TTL compatible
(positive & negative enable
options)
Output
Regulation
(Line, Load, Temp)
<2%
Ripple and noise
50mV p-p typical
Remote sense
Up to 10%Vout
Output voltage
adjust range
+/-10% of nominal output
Transient Response
4% deviation with
50% to 75% step load
300 s recovery
Overvoltage Protection
130% nominal output
Safety
UL, CUL 60950 Recognized (Pending)
TUV
EN60950 Licensed (Pending)
PRELIMINARY
Total Power:
144 Watts (1.8V@80Amps)
Input Voltages:
48 V
No. of Outputs:
Single
EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
3
Ordering Information
www.astecpower.com
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
Input
Output
Efficiency
Model Number
Voltage
Voltage
48V
1.8V @ 80A
87% (Typ)*
AEH80Y48
48V
1.5V @ 80A
85% (Typ)
AEH80M48
48V
1.2V @ 80A
83% (Typ)
AEH80K48
48V
1.8V @ 80A
87% (Typ)
ALH80Y48
48V
1.5V @ 80A
85% (Typ)
ALH80M48
48V
1.2V @ 80A
83% (Typ)
ALH80K48
* Typical Efficiency measured at nominal input voltage at an ambient temperature of Ta = 25C.
OPTIONS: suffix "N" = for Negative Enable (default is Positive Enable without Suffix "N")
suffix "-3" = Standard half brick pinout with Pins 6 and 10 removed
0.42 [10.6]
0.20 [5.1]
1.90 [48.3]
2.30 [58.4]
2 Enable (On/Off)
PIN ASSIGNMENT
PIN PLACEMENT TOLERANCE : 0.005(0.127)
MECHANICAL TOLERANCE .002(0.5)
ALL DIMENSIONS ARE IN INCHES (MILLIMETERS)
[1.0] 7 PLACES
[2.0] 4 PLACES
5-6 -Output
1.50 [38.1]
1.90 [48.3]
4
3
PIN SIDE UP
0.20 [5.1]
7 -Sense
9 + Sense
8 Trim
10-11 + Output
NOTES:
2.00 [50.8]
2
1
0.90 [22.8]
0.50 [12.7]
+ Output
-Output
PIN SIDE DOWN
+ Vin
2.37 [60.3]
- Vin
4 - Vin
3 CASE
1 + Vin
SIDE VIEW
0.04
0.08
0.23 [5.9]
1.70 [43.2]
1.90 [48.3]
11
10
9
8
7
6
5
0.50 [12.7]
0.70 [17.8]
0.90 [22.9]
1.20 [30.5]
1.50 [38.1]
Pin Assignments
Single Output
1. +Vin
2. Enable (on/off)
3. Case
4. -Vin
5. +Output
6. +Output (optional pin)
7. + Sense
8. Trim
9. - Sense
10. -Output (optional pin)
11. -Output
Notes:
1. 20 mHz bandwidth. External 10 uF tant. capacitor + 0.1 uF
cer. capacitor placed from +V out to -V out.
2. Requires a 2.2 mf, 100V film capacitor connected between +V
in and -V in to meet FCC class A and ETS300-386-1 require-
ments for conducted noise. Consult Factory for filtering
information to meet FCC class B, VDE or EIC specifications.
3. All specifications are typical at nominal line, full load, and 25C
unless otherwise noted.
4. All specifications subject to change without notice. Mechanical
drawings are for reference only
5. Technical Reference Notes should be consulted for detailed
information when available
6. Warranty: 1yr
* This is a Preliminary Data Sheet. Aastec Reserves the right
to make changes to the information contained herein without
notice and assumes no liability as a result of its use or
application (FEBRUARY 13, 2003)
M3 X0.5 MOUNTING HOLE
1.90 [48.3]
2.40 [61.0]
2.00 [50.8]
PIN SIDE UP
- Vin
PIN SIDE DOWN
1
0.90 [22.8]
0.50 [12.7]
-Output
4
3
2
1.50 [38.1]
1.90 [48.3]
+ Vin
0.20 [5.1]
0.20 [5.1]
4 PLACES
+ Output
0.04 [1.0] 7 PLACES
NOTES:
PIN PLACEMENT TOLERANCE : 0.005(0.127)
MECHANICAL TOLERANCE .002(0.5)
ALL DIMENSIONS ARE IN INCHES (MILLIMETERS)
INTO CUSTOMER BOARD MUST BE 5-6 LB/IN
RECOMMENDED SCREW TORQUE SETTING FOR MOUNTING
0.47
[11.9]
SIDE VIEW
[2.0] 4 PLACES
0.08
0.20 [5.1]
0.50 [12.7]
1.90 [48.3]
1.70 [43.1]
1.50 [38.1]
1.20 [30.5]
0.90 [22.9]
0.50 [12.7]
0.70 [17.7]
0.20 [5.1]
1.90 [48.3]
5
6
7
8
9
10
11
1 + Vin
3 CASE
4 - Vin
10-11 + Output
8 Trim
9 + Sense
7 -Sense
5-6 -Output
PIN ASSIGNMENT
2 Enable (On/Off)
inches [mm]
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