Technical Reference Notes

AEH/ALH80 Series

MODEL: AEH/ALH80 SERIES

SHEET 1 OF 17

OCTOBER 9, 2003 - REVISION B

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.

Special Features

•

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

Environmental Specifications

•

-40ºC to 85ºC Operating Temperature

•

-40ºC to 125ºC Storage Temperature

•

MTBF > 1 million hours

Electrical Parameters

Input

Input Range

36-75 VDC

Input Surge

100V / 100ms

Efficiency

1.8V @ 87.0%

1.5V @ 85.5%

1.2V @ 83.0%

Control

Enable

TTL compatible

(Positive and Negative Enable Options)

Output

Load Current

80A max

Ripple and Noise

Output Voltage

Adjust Range

Transient Response

50% to 75% Load Change

250

µsec settling time (Typ)

Remote Sense

Over Current

Protection

Safety

UL + cUL 60950, Recognized

EN60950 through TUV-PS

CB Test Report