Interface

Overview

The ISL32613E and ISL32614E are ±16. 5kV HBM ESD protected (7kV IEC61000 contact), 1. 8V powered, single transmitters for differential communication. These drivers have very low bus currents (±40µA), so they present less than a 1/8 unit load to the bus. The low bus currents allow more than 256 transmitters on the network without violating the RS-485 specification’s 32 unit load maximum and without using repeaters. Hot plug circuitry ensures that the Tx outputs remain in a high impedance state while the power supply stabilizes. Both ICs use slew rate limited drivers, which reduce EMI and minimize reflections from improperly terminated transmission lines or unterminated stubs in multidrop and multipoint applications. The ISL32613E is more slew rate limited for data rates up to 128kbps, while the less limited ISL32614E is useful for data rates up to 256kbps. For companion low power single RS-485 receivers, see the ISL32610E datasheet.

ISL32613E_ISL32614E Functional Diagram
ISL32613E_ISL32614E Functional Diagram
  • Wide supply voltage range 1.8V to 3.6V
  • Low quiescent supply current 80µA (max)
    • Very low shutdown supply current 2µA (max)
  • High ESD protection on RS-485 outputs ±16.5kV HBM
    • Class 3 ESD level on all other pins >8kV HBM
  • Specified for +125°C
  • Hot plug - Tx outputs remain three-state during power-up
  • Low Tx leakage allows >256 devices on the bus
  • Slew rate limited for data rates up to 256kbps
  • Current limiting and thermal shutdown for driver overload protection
  • 5V tolerant logic inputs
  • Pb-Free (RoHS Compliant)

Applications

  • Industrial/process control networks
  • Space-constrained systems
  • Factory automation
  • Building environmental control/lighting systems

Documentation

Title Type Date
ISL32613E, ISL32614E Datasheet
PDF682 KB
Datasheet
AN1978: Surge Protection for Renesas' Standard RS-485 Transceivers
PDF365 KB
Application Note
AN1985: Transient Protection for the Standard RS-485 Transceiver: ISL3152E
PDF207 KB
Application Note
AN1979: Surge Protection simplified with Renesas' Overvoltage Protected (OVP) Transceivers
PDF474 KB
Application Note
R15AN0011: FAQs: RS-485 Transceivers
PDF366 KB
Application Note
R15AN0002: RS-485 Transient Protection in Industrial DC-Supply Buses
PDF178 KB
Application Note
AN1991: Isolating RS-485 Interfaces with High-Speed Digital Optocouplers
PDF513 KB
Application Note
AN1990: RS-485 Transceivers in J1708 Physical Layer Applications of Heavy Duty Vehicles
PDF826 KB
Application Note
AN1987: RS-485 External Fail-Safe Biasing for Isolated Long Haul Buses
PDF443 KB
Application Note
AN1986: External Fail-Safe Biasing of RS-485 Networks
PDF582 KB
Application Note
AN1989: RS-422 vs RS-485: Similarities and Key Differences
PDF440 KB
Application Note
AN1976: Important Transient Immunity Tests for RS-485 Networks
PDF338 KB
Application Note
AN1977: Transient Voltage Suppressors: Operation and Features
PDF365 KB
Application Note
AN1980: Ground Potential Differences: Origin and Remedies
PDF375 KB
Application Note
Analog ICs Brochure
PDF4.91 MB日本語
Brochure
Transceivers Brochure
PDF2.95 MB
Brochure
TB506: Functional Principles of RS-485 Drivers and Receivers
PDF156 KB
Other
TB511: The Unit Load Concept
PDF253 KB
Other
TB505: Understanding the Difference between HBM and IEC 61000-4-2 ESD Immunity
PDF254 KB
Other
PIN19028 - Q3 Cy 19 Price Increase Notice
PDF208 KB
Price Increase Notice
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II
PDF398 KB
Product Change Notice
RS-485: Transmitting Full-Duplex Data over Single Twisted-Pair Cable
PDF438 KB
Report
TB509: Detecting Bus Signals Correctly with Failsafe Biased RS-485 Receivers
PDF266 KB 简体中文
Technical Brief
R70TB0002: Understanding the Differences in ESD Device-Level Testing
PDF188 KB
Technical Brief
How to Simplify Industrial PC Interfaces
PDF920 KB 简体中文
White Paper

Design & Development

ECAD Models

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Models

Title Type Date
isl32614e
IBS19 KB
Model - IBIS

Product Options

    Processing table
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    Carrier Type
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    ISL32614EFHZ-T
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    ISL32614EFHZ-T7A
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    Samples Available
    		 SOT23 Reel 250 Get Samples,
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