Logic Diagram (Positive Logic)

R

RE

DE

D

V

CC

B

A

GND

1

2

3

4

8

7

6

5

6

7

A

B

3

4

2

1

DE

D

RE

R

V

CC

B

A

GND

R

RE

DE

D

8

7

6

5

1

2

3

4

D Package

DGK Package

SN65HVD72

SN65HVD75

SN65HVD78

www.ti.com

SLLSE11C – MARCH 2012 – REVISED SEPTEMBER 2013

3.3V-Supply RS-485 with IEC ESD Protection

Check for Samples: SN65HVD72, SN65HVD75, SN65HVD78

1

FEATURES

APPLICATIONS

•

Small-size MSOP Packages Save Board Space,

•

Factory Automation

or SOIC for Drop-in Compatibility

•

Telecomm Infrastructure

•

Bus I/O Protection

•

Motion Control

–

> ±15kV HBM protection

DESCRIPTION

–

> ±12kV IEC61000-4-2 Contact Discharge

These devices have robust 3.3V drivers and receivers

•

Extended Industrial Temperature Range

in

a

small

package

for

demanding

industrial

–40°C to 125°C

applications. The bus pins are robust to ESD events,

•

Large Receiver Hysteresis (80 mV) for Noise

with high levels of protection to Human-Body Model

Rejection

and IEC Contact Discharge specifications.

•

Low Unit-loading allows over 200 connected

These devices each combine a differential driver and

nodes

a differential receiver, which operate from a single

3.3-V power supply. The driver differential outputs

•

Low Power Consumption

and the receiver differential inputs are connected

–

Low Standby Supply Current: < 2 µA

internally to form a bus port suitable for half-duplex

–

(two-wire bus) communication. These devices all

•

5V-Tolerant Logic Inputs Compatible With

feature a wide common-mode voltage range making

the devices suitable for multi-point applications over

3.3 V or 5 V Controllers

long cable runs. These devices are characterized

•

Signaling Rate Options Optimized for:

from -40°C to 125°C.

250 kbps, 20 Mbps, 50 Mbps

Table 1. Product Selection Guide

Part Number

Signaling Rate

Cable Length

Duplex

Enables

Package

Nodes

MSOP-8

SN65HVD72

up to 250 kbps

up to 2000 m

Half

DE, RE

SOIC-8

256

SON-8

MSOP-8

SN65HVD75

up to 20 Mbps

up to 100 m

Half

DE, RE

SOIC-8

256

SON-8

MSOP-8

SN65HVD78

up to 50 Mbps

up to 50 m

Half

DE, RE

SOIC-8

96

SON-8

SN65HVD72, 75, 78

1

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.

UNLESS

OTHERWISE

NOTED

this

document

contains

Copyright © 2012–2013, Texas Instruments Incorporated

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.