Datasheet > MAX14891E

MAX14891E

更新时间： 2023-12-20 18:46:34

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	721K
描述
四通道、故障保护RS-485/RS-422接收器，具有故障检测

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中文翻译

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MAX14891E 数据手册

MAX14891E

Quad Fault-Protected RS-485/RS-422

Receiver with Fault Detection

General Description

Beneﬁts and Features

● High Flexibility Simplifies Design

• Switching Rates up to 35Mbps

• 1.62V to 5.5V Logic Interface

The MAX14891E quad fault-protected RS-485/RS-422

receiver is ideal for applications requiring high data rates

and reduced noise in rugged environments. Each receiver

features a wide common-mode input range of -20V to

+20V and is guaranteed to receive data at speeds up to

35Mbps.

● Integrated Fault Detection Reduces Downtime

• Open-Wire and Short-Circuit Detection

• Overvoltage and Undervoltage Fault Detection

All receiver inputs are fault-protected against voltage

shorts in the ±40V range. Per-channel fault detection

provides warning of irregular conditions, such as short

circuits and open connections.

● Integrated Protection Ensures Robust

Communication

• ±40V Fault Protection Range

• ±20V Common Mode Range

• ±25kV HBM ESD

• ±7kV Air-Gap IEC 61000-4-2 ESD

• ±10kV Contact IEC 61000-4-2 ESD

• -40°C to +125°C Operating Temperature Range

The MAX14891E is available in a 20-pin TQFN-EP

(4mm x 4mm) and operates over the -40°C to +125°C

temperature range.

Applications

● Encoder Interfaces

● Motor Controllers

Ordering Information appears at end of data sheet.

● Servo Control Commutation

Typical Operating Circuit

3.3V to 5V

V_CC

V_L

ENCODER

RxA

RxB

RS-485/ RS-422 A

RS-485/ RS-422 B

120Ω

AFAULT

BFAULT

ASIC

RS-485/ RS-422 Z

RS-485/ RS-422 Y

RxZ

RxY

120Ω

ZFAULT

YFAULT

MAX14891E

MOTOR

CONTROLLER

19-7473; Rev 1; 3/15

12 3 4 5 6 7...12

中文翻译

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