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参数

Supply voltage(s) (Nom) (V) 5 Number of TX 4 Number of RX 0 Duplex Signaling rate (Max) (Mbps) 30 IEC 61000-4-2 contact (+/- kV) HBM ESD (kV) 12 Fault protection (V) -10 to 15 Number of nodes 32 Common mode range -7 to 12 ICC (Max) (mA) 23 Isolated No Rating Catalog Operating temperature range (C) -40 to 85 Approx. price (US$) 2.51 | 1ku open-in-new 查找其它 RS-485 和 RS-422 收发器

封装|引脚|尺寸

PDIP (N) 16 181 mm² 19.3 x 9.4 SOIC (DW) 16 77 mm² 7.52 x 10.28 SOIC (DW) 20 132 mm² 12.8 x 10.3 open-in-new 查找其它 RS-485 和 RS-422 收发器

特性

  • Designed for TIA/EIA-485, TIA/EIA-422 and
    ISO 8482 Applications
  • Signaling Rates(1) up to 30 Mbps
  • Propagation Delay Times < 11 ns
  • Low Standby Power Consumption 1.5-mA Max
  • Output ESD Protection: 12 kV
  • Driver Positive- and Negative-Current Limiting
  • Power-Up and Power-Down Glitch-Free for Line Insertion Applications
  • Thermal Shutdown Protection
  • Industry Standard Pin-Out, Compatible With SN75174, MC3487, DS96174, LTC487, and MAX3042

(1) The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).
LinBiCMOS Is a trademark of Texas Instruments.

open-in-new 查找其它 RS-485 和 RS-422 收发器

描述

The SN65LBC174A and SN75LBC174A are quadruple differential line drivers with 3-state outputs, designed for TIA/EIA-485 (RS-485), TIA/EIA-422 (RS-422), and ISO 8482 applications.

These devices are optimized for balanced multipoint bus transmission at signaling rates up to 30 million bits per second. The transmission media may be printed-circuit board traces, backplanes, or cables. The ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media and the noise coupling to the environment.

Each driver features current limiting and thermal-shutdown circuitry making it suitable for high-speed multipoint applications in noisy environments. These devices are designed using LinBiCMOS, facilitating low power consumption and robustness.

The two EN inputs provide pair-wise driver enabling, or can be externally tied together to provide enable control of all four drivers with one signal. When disabled or powered off, the driver outputs present a high-impedance to the bus for reduced system loading.

The SN75LBC174A is characterized for operation over the temperature range of 0°C to 70°C. The SN65LBC174A is characterized for operation over the temperature range of –40°C to 85°C.

open-in-new 查找其它 RS-485 和 RS-422 收发器
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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 Quadruple RS-485 Differential-Line Drivers 数据表 2009年 10月 26日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

设计工具和仿真

仿真模型 下载
SLLC062.ZIP (4 KB) - IBIS Model
仿真模型 下载
SLLC063.ZIP (4 KB) - IBIS Model
仿真工具 下载
document-generic 用户指南 document-generic 下载英文版本 (Rev.A)

参考设计

参考设计 下载
差分脉冲序列输出 (PTO) 可编程逻辑控制器 (PLC) 模块参考设计
TIDA-00766 — TI 的差动脉冲序列输出 (PTO) 模块参考设计对使用 RS-485 驱动器的差动高速数字输出模块进行了设计说明,该驱动器使用隔离型 Fly-Buck 电源转换器通过 PLC 背板供电。该参考设计主要用于定位和运动控制系统,可在嘈杂的环境中实现简单的远程高速电机控制。
document-generic 原理图 document-generic 用户指南

CAD/CAE 符号

封装 引脚 下载
PDIP (N) 16 视图选项
SOIC (DW) 16 视图选项
SOIC (DW) 20 视图选项

订购与质量

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