Technical Reference Notes

Hercules (AEH/ALH60) Open

Frame or HS Adapted

MODEL: AEH/ALH60F48

SHEET 1 OF 21

SEPTEMBER 26, 2002 - REVISION 02

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.

Environmental Specifications

•

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

Electrical Parameters

Input

Input range

36-75 VDC

Input Surge

100V / 100ms

Efficiency

91%@3.3V (Typical @ 60

Amps)

Control

Enable

TTL compatible

(Positive & Negative enable options)

Output

Regulation

(Line, Load, Temp)

<2%

Ripple and Noise

2% typical (100mV p-p

max)

Remote Sense

Up to 10%Vout

Output Voltage

Adjust Range

±10% of nominal output

Transient Response

150mV max deviation with

50% to 75% full load

300 µS (max) recovery

Over Voltage

Protection

130% nominal

Special Features

•

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)

Safety

§

UL, cUL 60950 Recognized

§

EN 60950 through TUV-PS

Industry Standard

½ Brick Package