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SN65HVD1780-Q1 Datasheet Preview

SN65HVD1780-Q1 Datasheet

RS-485 Transceiver

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SN65HVD1780-Q1, SN65HVD1781-Q1, SN65HVD1782-Q1
SLLSE49D – SEPTEMBER 2010 – REVISED JULY 2017
SN65HVD178x-Q1 Fault-Protected RS-485 Transceivers With 3.3-V to 5-V Operation
1 Features
1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results
– Device Temperature Grade 1:
–40°C to 125°C Ambient Operating
Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESG Classification Level C3B
• Bus-Pin Fault Protection to:
– > ±70 V ('HVD1780-Q1, 'HVD1781-Q1)
– > ±30 V ('HVD1782-Q1)
• Operation With 3.3-V to 5-V Supply Range
• ±16-kV HBM Protection on Bus Pins
• Reduced Unit Load for up to 320 Nodes
• Failsafe Receiver for Open-Circuit, Short-Circuit
and Idle-Bus Conditions
• Low Power Consumption
– Low Standby Supply Current, 1 μA Maximum
– ICC 4-mA Quiescent During Operation
• Pin-Compatible With Industry-Standard SN75176
• Signaling Rates of 115 kbps, 1 Mbps, and up to
10 Mbps
2 Applications
Automotive Data Links
3 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 the human-
body-model specification.
These devices combine a differential driver and a
differential receiver, which operate from a single
power supply. In the 'HVD1782, 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. This port
features 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 125°C. These devices are pin-
compatible with the industry-standard SN75176
transceiver, making them drop-in upgrades in most
systems.
These devices are fully compliant with ANSI TIA/EIA
485-A with a 5-V supply and can operate with a 3.3-V
supply with reduced driver output voltage for low-
power applications. For applications where operation
is required over an extended common-mode voltage
range, see the SN65HVD1785 (SLLS872) data sheet.
Device Information(1)
PART NUMBER SIGNALING RATE
NUMBER OF
NODES
SN65HVD1780-Q1 Up to 115 kbps
Up to 320
SN65HVD1781-Q1 Up to 1 Mbps
Up to 320
SN65HVD1782-Q1 Up to 10 Mbps
Up to 64
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VFAULT up to 70 V
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.




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SN65HVD1780-Q1 Datasheet Preview

SN65HVD1780-Q1 Datasheet

RS-485 Transceiver

No Preview Available !

SN65HVD1780-Q1, SN65HVD1781-Q1, SN65HVD1782-Q1
SLLSE49D – SEPTEMBER 2010 – REVISED JULY 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 3
6.1 Absolute Maximum Ratings ..................................... 3
6.2 ESD Ratings—AEC................................................... 4
6.3 ESD Ratings—IEC .................................................... 4
6.4 Recommended Operating Conditions....................... 4
6.5 Thermal Information .................................................. 4
6.6 Electrical Characteristics........................................... 5
6.7 Power Dissipation Ratings ........................................ 6
6.8 Switching Characteristics .......................................... 7
6.9 Package Dissipation Ratings .................................... 7
6.10 Typical Characteristics ............................................ 8
7 Parameter Measurement Information .................. 9
8 Detailed Description ............................................ 13
8.1 Overview ................................................................. 13
8.2 Functional Block Diagram ....................................... 13
8.3 Feature Description................................................. 13
8.4 Device Functional Modes........................................ 14
9 Application and Implementation ........................ 16
9.1 Application Information............................................ 16
9.2 Typical Application ................................................. 16
10 Power Supply Recommendations ..................... 20
11 Layout................................................................... 20
11.1 Layout Guidelines ................................................. 20
11.2 Layout Example .................................................... 20
12 Device and Documentation Support ................. 21
12.1 Device Support...................................................... 21
12.2 Documentation Support ........................................ 21
12.3 Receiving Notification of Documentation Updates 21
12.4 Community Resources.......................................... 21
12.5 Trademarks ........................................................... 21
12.6 Electrostatic Discharge Caution ............................ 21
12.7 Glossary ................................................................ 21
13 Mechanical, Packaging, and Orderable
Information ........................................................... 21
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (April 2016) to Revision D
Page
• Changed the differential input to receive a valid bus high from VID < VIT+ to VID > VIT+ in the Receiver Function Table ..... 15
• Changed the Half-Duplex Layout Example .......................................................................................................................... 20
• Added the Receiving Notification of Documentation Updates section ................................................................................. 21
• Changed the Electrostatic Discharge Caution statement..................................................................................................... 21
Changes from Revision B (January 2016) to Revision C
Page
• Changed the signaling rate for SN65HVD1780-Q1 from 115 to 0.115 Bin the Recommended Operating Conditions
table ....................................................................................................................................................................................... 4
Changes from Revision A (August 2015) to Revision B
Page
• Changed HBM and CDM back to the AEC specification and split the IEC specification into a separate table .................... 4
• Added the SN65HVD1780-Q1 and SN65HVD1782-Q1 devices to the Thermal Information table ....................................... 4
Changes from Original (September 2010) to Revision A
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
• Added new ListItem in Features, second one with sub list items........................................................................................... 1
2
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Copyright © 2010–2017, Texas Instruments Incorporated
Product Folder Links: SN65HVD1780-Q1 SN65HVD1781-Q1 SN65HVD1782-Q1


Part Number SN65HVD1780-Q1
Description RS-485 Transceiver
Maker etcTI
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