Technical Reference Notes
AEO_ALO40/35/30/20/10x48 Series
(Single Output 8th Brick)
AEO40x48 / ALO40x48 Single Output 8th Brick: Baseplate or Open-Frame Module
The AEO40x48 / ALO40x48 series is Astec’s High Current 8th Brick industry standard offering. Operating from an input voltage
range of 36V to 75V, the series provides 7 configured outputs starting from 1.2V all the way up to 12V. It delivers up to 40A max
current for 1.8V and lower at impressive levels of efficiency. It provides tight regulation and exhibits clean and monotonic output
start up characteristics. The AEO_ALO series comes with industry standard features such as Input UVLO; non-latching OCP,
OVP and OTP; Output Trim; Differential Remote Sense pins. Both baseplate (AEO) and open frame (ALO) construction are
available as well as TH or SMT termination. With its wide operating temperature range of -40°C to 85°C ambient, the converters
are deployable into almost any environment.
Electrical Parameters
Input
Input Range
Input Surge
36-75 VDC
100V / 100ms
Control
Enable
TTL compatible
(Positive or Negative Logic Enable Options)
Output
Load Current
Line/Load Regulation < 1% VO
Up to 40A max (VO £ 1.8V)
Ripple and Noise
Output Voltage
Adjust Range
40mVP-P typical
Special Features
±10% VO
Transient Response 2% Typical deviation
50% to 75% Load Change
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Industry Standard 8th Brick Footprint
Baseplate or Open frame construction
Low Ripple and Noise
Regulation to zero load
High Capacitive Load Start-up
Fixed Switching Frequency
Industry standard features: Input UVLO;
Enable; non-latching OVP, OCP and OTP;
Output Trim, Differential Remote Sense
Meets Basic Insulation
20ms settling time (Typ)
Remote Sense
Over Current
Protection
+10%VO
120% max
Over Voltage
Protection
130% max
Over Temperature
Protection
110 °C
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Safety
Environmental Specifications
UL + cUL 60950, Recognized
EN60950 through TUV-PS
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-40ºC to 85ºC Operating Temperature
-55ºC to 125ºC Storage Temperature
MTBF > 1 million hours
MODEL: AEO40x48 / ALO40x48 SERIES
JUNE 24, 2005 - REVISION B
SHEET 1 OF 30
ASTEC [ Astec America, Inc ]
