THVD1520 Transceiver Datasheet

THVD1520 Datasheet, PDF, Equivalent


Part Number

THVD1520

Description

10Mbps RS-485 Transceiver

Manufacture

etcTI

Total Page 27 Pages
Datasheet
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THVD1520
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THVD1520
SLLSF67 – OCTOBER 2019
THVD1520 10 Mbps RS-485 Transceiver With ±8-kV IEC ESD Protection
1 Features
1 Meets or exceeds the requirements of the
TIA/EIA-485A standard
• 4.5-V to 5.5-V supply voltage
• 10 Mbps, Half-Duplex RS-422/RS-485
• Bus I/O protection
– ± 16-kV HBM ESD
– ± 8-kV IEC 61000-4-2 contact discharge
– ± 8-kV IEC 61000-4-2 air gap discharge
– ± 4-kV IEC 61000-4-4 fast transient burst
• Extended industrial temperature range: -40°C to
125°C
• Large receiver hysteresis for noise rejection
• Low power consumption
– Low standby supply current: < 1 µA
– Quiescent during operation: < 840 µA
• Glitch-free power-up/down for hot plug-in
capability
• Open, short and idle bus failsafe
• 1/8 unit load (up to 256 bus nodes)
Spacer
Spacer
2 Applications
Factory Automation & Control
Building Automation
HVAC Systems
Video Surveillance
Smart Meters
3 Description
THVD1520 is a robust half-duplex RS-485 transceiver
for industrial applications. The bus pins are immune
to high levels of IEC contact discharge ESD events
eliminating the need of additional system-level
protection components.
The device operates from a single 5-V supply. The
wide common-mode voltage range and low input
leakage on bus pins make THVD1520 suitable for
multi-point applications over long cable runs.
THVD1520 is available in industry standard 8-pin
SOIC package for drop-in compatibility. The device is
characterized for ambient temperatures from –40°C
to 125°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
THVD1520
SOIC (8)
4.90 mm × 3.91 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
1
R
2
RE
DE 3
4
D
7B
6A
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. PRODUCTION DATA.

THVD1520
THVD1520
SLLSF67 – OCTOBER 2019
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......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 ESD Ratings [IEC] .................................................... 4
6.4 Recommended Operating Conditions....................... 5
6.5 Thermal Information .................................................. 5
6.6 Electrical Characteristics........................................... 6
6.7 Power Dissipation Characteristics ............................ 7
6.8 Switching Characteristics .......................................... 7
6.9 Typical Characteristics .............................................. 8
7 Parameter Measurement Information .................. 9
8 Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagrams ..................................... 11
8.3 Feature Description................................................. 11
8.4 Device Functional Modes........................................ 11
9 Application and Implementation ........................ 13
9.1 Application Information........................................ 13
9.2 Typical Application ................................................. 13
10 Power Supply Recommendations ..................... 18
11 Layout................................................................... 19
11.1 Layout Guidelines ................................................. 19
11.2 Layout Example .................................................... 19
12 Device and Documentation Support ................. 20
12.1 Device Support...................................................... 20
12.2 Third-Party Products Disclaimer ........................... 20
12.3 Receiving Notification of Documentation Updates 20
12.4 Community Resources.......................................... 20
12.5 Trademarks ........................................................... 20
12.6 Electrostatic Discharge Caution ............................ 20
12.7 Glossary ................................................................ 20
13 Mechanical, Packaging, and Orderable
Information ........................................................... 20
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
DATE
October 2019
REVISION
*
NOTES
Initial release.
2 Submit Documentation Feedback
Product Folder Links: THVD1520
Copyright © 2019, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity THVD1520 SLLSF67 – OCTOBER 20 19 THVD1520 10 Mbps RS-485 Transceiver With ±8-kV IEC ESD Protection 1 Featu res •1 Meets or exceeds the requireme nts of the TIA/EIA-485A standard • 4. 5-V to 5.5-V supply voltage • 10 Mbps , Half-Duplex RS-422/RS-485 • Bus I/O protection – ± 16-kV HBM ESD – ± 8-kV IEC 61000-4-2 contact discharge ± 8-kV IEC 61000-4-2 air gap discha rge – ± 4-kV IEC 61000-4-4 fast tran sient burst • Extended industrial tem perature range: -40°C to 125°C • La rge receiver hysteresis for noise rejec tion • Low power consumption – Low standby supply current: < 1 µA – Qui escent during operation: < 840 µA • Glitch-free power-up/down for hot plug- in capability • Open, short and idle bus failsafe • 1/8 unit load (up to 2 56 bus nodes) Spacer Spacer 2 Applicat ions • Factory Automation & Control Building Automation • HVAC Systems • Video Surveillance • Smart Meters 3 Description THVD1520 is a robust .
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