Datasheet > ALQ40_03

ALQ40_03

更新时间： 2024-11-08 03:18:39

品牌	Logo	应用领域
ASTEC		/
页数	文件大小	规格书
16页	214K
描述
Industry Standard  Brick: 36V-75V Input / 50A Output Current

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Technical Reference Notes

ALQ40/50 Series

(Open Frame Single Output Quarter Brick)

ALQ50 Single Output Open-Frame DC-DC Converter Module

Industry Standard ¼ Brick: 36V-75V Input / 50A Output Current

PRELIMINARY

The ALQ50 series is Astec's next generation single output, high-density standard quarter brick offering. It operates from a 36V

to 75V DC Bus and comes in different Isolated Logic Output voltages (ILO) well suited for DPA applications. It’s designed to

conservatively handle 50A of output current for 2.5V and below at high levels of efficiency (3.3V @ 90.5%). It provides tight

regulation and exhibits clean and monotonic output start up characteristics. The ALQ50’s come with industry standard features

such as Input UVLO, OCP, OVP, OTP, Output Trim, differential output Sense pins. With its 0.36” low profile and open frame

construction, it offers optimum board mounting flexibility.

Electrical Parameters

Input

Input Range

Input Surge

Efficiency

36-75 VDC

100V / 100ms

3.3V @ 90.5% (Typ)

2.5V @ 90.0%

1.8V @ 89.0%

1.2V @ 86.5%

Control

Enable

TTL compatible

(Positive and Negative Enable Options)

Output

Special Features

Load Current

2.5V @ 50A max

Line/Load Regulation < 1% V_O

Ripple and Noise

Output Voltage

Adjust Range

Transient Response 5% V_Odeviation (Typ)

50% to 75% Load Change

60mV_PK-PKmax

Industry Standard ¼ Brick Footprint

Positive and Negative Enable Options

Regulation to Zero Load

High Capacitive Load Start-up

Fixed Switching Frequency at 480kHz

Output Trim

±10% V_O

250msec settling time (Typ)

+10%V_O

Remote Sense

Over Current

Protection

Input Under-Voltage Lockout

Low profile / open-frame

120% I_O,MAX

Environmental Specifications

-40ºC to 85ºC Operating Temperature

-40ºC to 125ºC Storage Temperature

MTBF > 1 million hours

Safety

UL + cUL 60950, Recognized (Pending)

EN60950 through TUV-PS (Pending)

MODEL: ALQ50 SERIES

SHEET 1 OF 16

APRIL 21, 2003 - REVISION A (PRELIMINARY)

12 3 4 5 6 7...16

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