Technical Reference Notes
Hercules (AEH/ALH60) Open
Frame or HS Adapted
AEH60F48 /ALH60F48 Isolated DC/DC Converter Module
Industry Standard �½ Brick – 36-75V Input, 3.3V / 60A Output
The AEH60F48 / ALH60F48 is part of Astec’s New Ultra High Density �½ Brick family capable of running 60Amps at 3.3V
output. With Efficiencies up to 92% typical at 3.3V - 60Amps, this product provides a 1% to 2% performance increase in
efficiency over the leading 60Amp competitors and up to 10% higher output current. The operating temperature range (-
40°C to 85°C for the ALH; -40°C to 100°C baseplate for AEH) assures maximum application flexibility. New single-
output models feature superior transient response with excellent stability in high capacitance/low ESR load applications.
This family has an effective thermal adapter plate which allows for heat sinking under particularly harsh conditions.
Without the adapter plate (ALH60) provides a very effective low profile which performs extremely well in convection
cooled applications.
Electrical Parameters
Input
Input range
Input Surge
Efficiency
36-75 VDC
100V / 100ms
91%@3.3V (Typical @ 60
Amps)
Control
Enable
TTL compatible
(Positive & Negative enable options)
Industry Standard
�½ Brick Package
Output
Regulation
(Line, Load, Temp)
Ripple and Noise
<2%
2% typical (100mV p-p
max)
Up to 10%Vout
Special Features
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High efficiency, 92% (30-70%Load))
-40°C to 100°C baseplate operating temp
Open Frame version also available
(ALH60)
Positive and Negative enable function
Low output ripple and noise
High capacitive load limit
Remote sense compensation
Regulation to zero load
Fixed frequency switching (190 KHz)
Remote Sense
Output Voltage
Adjust Range
Transient Response
±10% of nominal output
150mV max deviation with
50% to 75% full load
300 µS (max) recovery
Over Voltage
Protection
130% nominal
Environmental Specifications
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Operating temperature:
-40°C to +85°C for Open Frame (ALH60)
-40°C to +100°C (Baseplate) for (AEH60)
Storage temperature: -40°C to +125C
MTBF: >1 million hours
Safety
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UL, cUL 60950 Recognized
EN 60950 through TUV-PS
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MODEL: AEH/ALH60F48
SEPTEMBER 26, 2002 - REVISION 02
SHEET 1 OF 21
ASTEC [ Astec America, Inc ]
