Technical Reference Notes
AEH/ALH80 Series
AEH/ALH80 Single Output Baseplate/Open-Frame DC-DC Converter Module
Industry Standard
�½
Brick: 36V-75V Input / 80A Output Current
The AEH/ALH80 series is part of Astec's next generation single output, high-density industry standard half bricks. It operates
from a 36V to 75V DC Bus and comes in three different Isolated Logic Output voltages (ILO) well suited for DPA
applications. It’s designed to handle 80A maximum output current for 1.8V, 1.5V and 1.2V at high levels of efficiency. It
provides tight regulation and exhibits clean and monotonic output start up characteristics. The AEH/ALH80 comes with
industry standard features such as Input UVLO, OCP, OVP, OTP, output Trim, differential output Sense pins. It comes either
with baseplate or open frame construction, with double pair or single pair (option) output pins.
Electrical Parameters
Input
Input Range
Input Surge
Efficiency
36-75 VDC
100V / 100ms
1.8V @ 87.0%
1.5V @ 85.5%
1.2V @ 83.0%
Control
Enable
TTL compatible
(Positive and Negative Enable Options)
Output
Special Features
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Industry Standard �½ Brick Footprint
Positive and Negative Enable Options
Regulation to Zero Load
High Capacitive Load Start-up
Fixed Switching Frequency at 400kHz
Output Trim
Input Under-Voltage Lockout
Low profile / open-frame
Double pair or single pair output pins option
Load Current
Line/Load Regulation
Ripple and Noise
Output Voltage
Adjust Range
Transient Response
80A max
< 1% V
O
50mV
PK-PK
(Typ)
±10% V
O
<5% V
O
deviation (Typ)
50% to 75% Load Change
250µsec settling time (Typ)
+10%V
O
120% I
O,MAX
Remote Sense
Over Current
Protection
Environmental Specifications
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-40ºC to 85ºC Operating Temperature
-40ºC to 125ºC Storage Temperature
MTBF > 1 million hours
Safety
UL + cUL 60950, Recognized
EN60950 through TUV-PS
CB Test Report
MODEL: AEH/ALH80 SERIES
OCTOBER 9, 2003 - REVISION B
SHEET 1 OF 17
ASTEC [ Astec America, Inc ]
