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本文档旨在为方便起见,提供有关 TI 产品中文版本的信息,以确认产品的概要。 有关适用的官方英文版本的最新信息,请访问 www.ti.com,其内容始终优先。 TI 不保证翻译的准确
性和有效性。 在实际设计之前,请务必参考最新版本的英文版本。
English Data Sheet: SLLSEY3
THVD1410
THVD1450
,
THVD1451
,
THVD1452
ZHCSI82E –MAY 2018–REVISED MAY 2019
具具有有 ±18kV IEC ESD 保保护护功功能能的的 THVD14xx 3.3V 至至 5V RS-485 收收发发器器
1
1 特特性性
1
• 满足或超过 TIA/EIA-485A 标准的要求
• 3V 至 5.5V 电源电压
• 差分输出超过 2.1V,实现 PROFIBUS 与 5V 电源
兼容
• 总线 I/O ESD 保护
– ±30kV HBM
– ±18kV IEC 61000-4-2 接触放电
– ±25kV IEC 61000-4-2 气隙放电
– ±4kV IEC 61000-4-4 快速瞬变脉冲
• 扩展级运行共模
范围:±15V
• 低 EMI 500kbps 和 50Mbps 数据速率
• 用于噪声抑制的大接收器滞后
• 低功耗
– 待机电源电流:< 1µA
– 运行期间的电流:< 3mA
• 扩展环境温度
范围:–40°C 至 125°C
• 适用于热插拔功能的无干扰加电/断电
• 开路、短路和空闲总线失效防护
• 1/8 单位负载(多达 256 个总线节点)
• 小尺寸 VSON 和 VSSOP 封装(可节省布板空间)
或 SOIC 封装(可实现快插兼容性)
2 应应用用
• 电机驱动器
• 工厂自动化和控制
• 电网基础设施
• 楼宇自动化
• HVAC 系统
• 视频监控
• 过程分析
• 无线基础设施
3 说说明明
THVD14xx 是一系列抗噪 RS-485/RS-422 收发器,专
用于在恶劣的工业环境中运行。这些器件的总线引脚可
耐受高级别的 IEC 电气快速瞬变 (EFT) 和 IEC 静电放
电 (ESD) 事件,从而无需使用其他系统级保护组件。
其中的每个型号均是通过 3V 至 5.5V 的单电源供电运
行。该系列中的器件具有扩展共模电压范围,因此这些
器件适用于长电缆上的 应用 长线缆。
THVD14xx 系列器件可提供小型 VSON 和 VSSOP 封
装,适用于空间受限的 应用。这些器件在自然通风环
境下的额定温度范围为 –40°C 至 125°C。
器器件件信信息息
(1)
器器件件型型号号 封封装装 封封装装尺尺寸寸((标标称称值值))
THVD1410
VSSOP (8) 3.00mm × 3.00mm
SOIC (8) 4.90mm × 3.91mm
THVD1450
VSON (8) 3.00mm × 3.00mm
VSSOP (8) 3.00mm × 3.00mm
SOIC (8) 4.90mm × 3.91mm
THVD1451
VSON (8) 3.00mm × 3.00mm
SOIC (8) 4.90mm × 3.91mm
THVD1452
VSSOP (10) 3.00mm × 3.00mm
SOIC (14) 8.65mm × 3.91mm
(1) 如需了解所有可用封装,请参阅产品说明书末尾的可订购产品
附录。
THVD1410 和和 THVD1450 简简化化原原理理图图
THVD1451 简简化化原原理理图图
THVD1452 简简化化原原理理图图

2
THVD1410
THVD1450
,
THVD1451
,
THVD1452
ZHCSI82E –MAY 2018–REVISED MAY 2019
www.ti.com.cn
版权 © 2018–2019, Texas Instruments Incorporated
目目录录
1 特特性性.......................................................................... 1
2 应应用用.......................................................................... 1
3 说说明明.......................................................................... 1
4 修修订订历历史史记记录录 ........................................................... 2
5 Device Comparison Table..................................... 4
6 Pin Configuration and Functions......................... 5
7 Specifications......................................................... 8
7.1 Absolute Maximum Ratings ...................................... 8
7.2 ESD Ratings.............................................................. 8
7.3 ESD Ratings [IEC] .................................................... 8
7.4 Recommended Operating Conditions....................... 9
7.5 Thermal Information.................................................. 9
7.6 Power Dissipation ..................................................... 9
7.7 Electrical Characteristics......................................... 10
7.8 Switching Characteristics........................................ 11
7.9 Typical Characteristics: All Devices........................ 12
7.10 Typical Characteristics: THD1450, THVD1451 and
THVD1452 ............................................................... 14
7.11 Typical Characteristics: THVD1410 ...................... 15
8 Parameter Measurement Information ................ 16
9 Detailed Description............................................ 18
9.1 Overview ................................................................. 18
9.2 Functional Block Diagrams ..................................... 18
9.3 Feature Description................................................. 19
9.4 Device Functional Modes........................................ 19
10 Application and Implementation........................ 22
10.1 Application Information...................................... 22
10.2 Typical Application ............................................... 22
11 Power Supply Recommendations ..................... 28
12 Layout................................................................... 29
12.1 Layout Guidelines ................................................. 29
12.2 Layout Example .................................................... 29
13 器器件件和和文文档档支支持持 ..................................................... 30
13.1 器件支持................................................................ 30
13.2 第三方产品免责声明.............................................. 30
13.3 相关链接................................................................ 30
13.4 接收文档更新通知 ................................................. 30
13.5 社区资源................................................................ 30
13.6 商标 ....................................................................... 30
13.7 静电放电警告......................................................... 30
13.8 Glossary................................................................ 30
14 机机械械、、封封装装和和可可订订购购信信息息....................................... 30
4 修修订订历历史史记记录录
Changes from Revision D (March 2019) to Revision E Page
• 将 THVD1451 从
产品预览
更改为
生产
数据 ........................................................................................................................... 1
Changes from Revision C (February 2019) to Revision D Page
• 将 THVD1410 从
产品预览
更改为
生产
数据 ............................................................................................................................ 1
Changes from Revision B (December 2018) to Revision C Page
• 将 THVD1452 从
产品预览
更改为
生产
数据 ........................................................................................................................... 1
Changes from Revision A (May 2018) to Revision B Page
• 添加
特性
:“差分输出超过 2.1 V...” ......................................................................................................................................... 1
• 更改
特性
:将“±18kV IEC 61000-4-2 气隙放电”更改为:“±25kV IEC 61000-4-2 气隙放电”................................................... 1
• 添加 THVD1451 的 SOIC (8) 封装 ......................................................................................................................................... 1
• Added Thermal Pad to the THVD1450 DRB package ........................................................................................................... 5
• Added Thermal Pad to the THVD1451 DRB package ........................................................................................................... 6
• Changed all pins HBM ESD rating from 4 kV to 8 kV ............................................................................................................ 8
• Changed IEC ESD air-gap discharge rating from 18 kV to 25 kV.......................................................................................... 8
• Changed THVD1410 power dissipation numbers .................................................................................................................. 9
• Changed THVD1410 driver t
r
, t
f
TYP from 400 ns to 460 ns and MAX from 600 ns to 680 ns ........................................... 11
• Changed THVD1410 receiver t
r
, t
f
TYP from 13 ns to 10 ns................................................................................................ 11
• Changed THVD1410 receiver t
PH
L, t
PLH
TYP from 60 ns to 35 ns....................................................................................... 11
• Added Typical Characteristics, THD1450D .......................................................................................................................... 14

3
THVD1410
THVD1450
,
THVD1451
,
THVD1452
www.ti.com.cn
ZHCSI82E –MAY 2018–REVISED MAY 2019
Copyright © 2018–2019, Texas Instruments Incorporated
• Added condition to 图 8 to 图 3 ............................................................................................................................................ 14
• Added Typical Characteristics, THD1410............................................................................................................................. 15
• Changed A to A/Y and B to B/Z in 图 20 to 图 24................................................................................................................ 16
• Added 3rd paragraph to the Overview section..................................................................................................................... 18
Changes from Original (November 2017) to Revision A Page
• 将文档状态从
预告信息
更改为
生产
数据.................................................................................................................................. 1

4
THVD1410
THVD1450
,
THVD1451
,
THVD1452
ZHCSI82E –MAY 2018–REVISED MAY 2019
www.ti.com.cn
Copyright © 2018–2019, Texas Instruments Incorporated
5 Device Comparison Table
PART NUMBER DUPLEX ENABLES SIGNALING RATE NODES
THVD1410 Half DE, RE up to 500 kbps
256
THVD1450 Half DE, RE
up to 50 MbpsTHVD1451 Full None
THVD1452 Full DE, RE

1R 8 VCC
2RE 7 B
3DE 6 A
4D 5 GND
Not to scale
Thermal
Pad
1R 8 VCC
2RE 7 B
3DE 6 A
4D 5 GND
Not to scale
1R 8 VCC
2RE 7 B
3DE 6 A
4D 5 GND
Not to scale
5
THVD1410
THVD1450
,
THVD1451
,
THVD1452
www.ti.com.cn
ZHCSI82E –MAY 2018–REVISED MAY 2019
Copyright © 2018–2019, Texas Instruments Incorporated
6 Pin Configuration and Functions
THVD1410, THVD1450 Devices
8-Pin D Package (SOIC)
Top View
THVD1410, THVD1450 Devices
8-Pin DGK Package (VSSOP)
Top View
THVD1450 Device
8-Pin DRB Package (VSON)
Top View
Pin Functions
PIN
I/O DESCRIPTION
NAME D DGK DRB
A 6 6 6 Bus input/output Bus I/O port, A (complementary to B)
B 7 7 7 Bus input/output Bus I/O port, B (complementary to A)
D 4 4 4 Digital input Driver data input
DE 3 3 3 Digital input Driver enable, active high (2-MΩ internal pull-down)
GND 5 5 5 Ground Device ground
R 1 1 1 Digital output Receive data output
V
CC
8 8 8 Power 3.3-V to 5-V supply
RE 2 2 2 Digital input Receiver enable, active low (2-MΩ internal pull-up)
Thermal
Pad
— — I/O
No electrical connection. Should be connected to GND for optimal
thermal performance.
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