Datasheet > SN65HVD1785_10

SN65HVD1785_10

更新时间： 2024-01-01 17:50:12

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德州仪器 - TI		/
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24页	656K
描述
Fault-Protected RS-485 Transceivers With Extended Common-Mode Range

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SN65HVD1785_10 数据手册

SN65HVD1785, SN65HVD1786

SN65HVD1787, SN65HVD1791

SN65HVD1792, SN65HVD1793

www.ti.com

SLLS872H –JANUARY 2008–REVISED FEBRUARY 2010

Fault-Protected RS-485 Transceivers With Extended Common-Mode Range

Check for Samples: SN65HVD1785, SN65HVD1786, SN65HVD1787, SN65HVD1791, SN65HVD1792, SN65HVD1793

FEATURES

•

Bus-Pin Fault Protection to:

•

Failsafe Receiver for Open-Circuit,

Short-Circuit and Idle-Bus Conditions

–

> ±70 V ('HVD1785, 86,91,92)

> ±30 V ('HVD1787, 93)

Low Power Consumption

–

Low Standby Supply Current, 1 mA Typ

•

Common-Mode Voltage Range (–20 V to 25 V)

More Than Doubles TIA/EIA 485 Requirement

I_CC5 mA Quiescent During Operation

Bus I/O Protection

•

Power-Up, Power-Down Glitch-Free Operation

–

±16 kV JEDEC HBM Protection

APPLICATIONS

•

Reduced Unit Load for Up to 256 Nodes

•

Designed for RS-485 and RS-422 Networks

DESCRIPTION

These devices are designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring

faults, connector failures, cable crushes, and tool mis-applications. They are also robust to ESD events, with high

levels of protection to human-body model specifications.

These devices combine a differential driver and a differential receiver, which operate from a single power supply.

In the 'HVD1785, 'HVD1786, and 'HVD1787, the driver differential outputs and the receiver differential inputs are

connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. In the 'HVD1793,

the driver differential outputs and the receiver differential inputs are separate pins, to form a bus port suitable for

full-duplex (four-wire bus) communication. These ports feature a wide common-mode voltage range, making the

devices suitable for multipoint applications over long cable runs. These devices are characterized from –40°C to

105°C.

For similar features with 3.3 V supply operation, see the SN65HVD1781 (SLLS877).

V_FAULTup to 70 V

M0092-01

PRODUCT SELECTION GUIDE

PART NUMBER

SN65HVD1785

DUPLEX

Half

SIGNALING RATE

NODES

CABLE LENGTH

1500 m

115 kbps

Up to 256

Up to 64

Up to 256

Up to 64

SN65HVD1786

SN65HVD1787

SN65HVD1791

SN65HVD1792

SN65HVD1793

Half

1 Mbps

150 m

50 m

Half

10 Mbps

115 kbps

1 Mbps

Full

1500 m

150 m

50 m

Full

10 Mbps

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...24

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与SN65HVD1785_10相关器件

型号	品牌	获取价格	描述	数据表
SN65HVD1785_101	TI	获取价格	Fault-Protected RS-485 Transceivers With Extended Common-Mode Range
SN65HVD1785D	TI	获取价格	70-V Fault-Protected RS-485 Transceivers
SN65HVD1785DG4	TI	获取价格	70-V Fault-Protected RS-485 Transceivers
SN65HVD1785DR	TI	获取价格	70-V Fault-Protected RS-485 Transceivers
SN65HVD1785DRG4	TI	获取价格	70-V Fault-Protected RS-485 Transceivers
SN65HVD1785P	TI	获取价格	70-V Fault-Protected RS-485 Transceivers
SN65HVD1786	TI	获取价格	70-V Fault-Protected RS-485 Transceivers
SN65HVD1786D	TI	获取价格	70-V Fault-Protected RS-485 Transceivers
SN65HVD1786DG4	TI	获取价格	70-V Fault-Protected RS-485 Transceivers
SN65HVD1786DR	TI	获取价格	70-V Fault-Protected RS-485 Transceivers

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