インタフェース&コネクティビティ

概要

The Intersil ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E are ±16. 5kV IEC61000 ESD Protected, 3. 0V to 5. 5V powered, single receivers that meet both the RS-485 and RS-422 standards for balanced communication. These receivers have very low bus currents (+125µA/-100µA), so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 receivers on the network without violating the RS-485 specification’s 32 unit load maximum and without using repeaters. Receiver inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven. The ISL3280E and ISL3284E feature an always enabled Rx; the ISL3281E and ISL3285E feature an active high Rx enable pin and the ISL3282E and ISL3283E include an active low enable pin. All versions are offered in Industrial and Extended Industrial (-40°C to +125°C) temperature ranges. A 26% smaller footprint is available with the ISL3282E and ISL3285E TDFN package. These devices, plus the ISL3284E, also feature a logic supply pin (VL) that sets the VOH level of the RO output (and the switching points of the RE/RE input) to be compatible with another supply voltage in mixed voltage systems. For companion single RS-485 transmitters in micro packages, please see the ISL3293E datasheet.

ISL328xE Functional Diagram
ISL328xE Functional Diagram
  • IEC61000 ESD protection on RS-485 inputs: ±16.5kV
  • Class 3 ESD level on all other pins: >5kV HBM
  • Pb-free (RoHS compliant)
  • Wide supply range: 3.0V to 5.5V
  • Specified for +125°C operation
  • Logic supply pin (VL) eases operation in mixed supply systems (ISL3282E, ISL3284E, ISL3285E only)
  • Full fail-safe (open, short, terminated/undriven)
  • True 1/8 unit load allows up to 256 devices on the bus
  • High data rates: up to 20Mbps
  • Low quiescent supply current: 500µA (max)
  • Very low shutdown supply current: 20µA (max)
  • -7V to +12V common mode input voltage range
  • Tri-statable Rx available (active low or high EN input)
  • 5V tolerant logic inputs when VCC ≤ 5V

アプリケーション

  • Clock Distribution
  • High Node Count Systems
  • Space Constrained Systems
  • Security Camera Networks
  • Building Environmental Control/Lighting Systems
  • Industrial/Process Control Networks

ドキュメント

タイトル 分類 日付
ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E Datasheet
PDF993 KB
データシート
AN1978: Surge Protection for Renesas' Standard RS-485 Transceivers
PDF365 KB
アプリケーションノート
AN1985: Transient Protection for the Standard RS-485 Transceiver: ISL3152E
PDF207 KB
アプリケーションノート
AN1979: Surge Protection simplified with Renesas' Overvoltage Protected (OVP) Transceivers
PDF474 KB
アプリケーションノート
R15AN0002: RS-485 Transient Protection in Industrial DC-Supply Buses
PDF178 KB
アプリケーションノート
AN1991: Isolating RS-485 Interfaces with High-Speed Digital Optocouplers
PDF513 KB
アプリケーションノート
AN1990: RS-485 Transceivers in J1708 Physical Layer Applications of Heavy Duty Vehicles
PDF826 KB
アプリケーションノート
AN1987: RS-485 External Fail-Safe Biasing for Isolated Long Haul Buses
PDF443 KB
アプリケーションノート
AN1986: External Fail-Safe Biasing of RS-485 Networks
PDF582 KB
アプリケーションノート
AN1989: RS-422 vs RS-485: Similarities and Key Differences
PDF440 KB
アプリケーションノート
AN1976: Important Transient Immunity Tests for RS-485 Networks
PDF338 KB
アプリケーションノート
AN1977: Transient Voltage Suppressors: Operation and Features
PDF365 KB
アプリケーションノート
AN1980: Ground Potential Differences: Origin and Remedies
PDF375 KB
アプリケーションノート
AN1593: Add a Loss of Signal (LOS) Indicator to Your RS-485 or RS-422 Transceiver
PDF559 KB
アプリケーションノート
アナログIC　カタログ
PDF5.10 MBEnglish
カタログ
PLC21035 - End of Life Notice
PDF1.17 MB
EOL通知
TB347: Tape and Reel Specification for Integrated Circuits
PDF825 KB
その他資料
TB506: Functional Principles of RS-485 Drivers and Receivers
PDF156 KB
その他資料
TB511: The Unit Load Concept
PDF253 KB
その他資料
TB505: Understanding the Difference between HBM and IEC 61000-4-2 ESD Immunity
PDF254 KB
その他資料
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products
PDF326 KB
製品変更通知
PCN15046 - Wafer Fabrication Site Change for Listed Intersil Products - Global Foundry P6 Process transfer to Palm Bay - Phase II
PDF398 KB
製品変更通知
TB509: Detecting Bus Signals Correctly with Failsafe Biased RS-485 Receivers
PDF266 KB
技術概要
How to Simplify Industrial PC Interfaces
PDF920 KB
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設計・開発

ソフトウェアダウンロード

タイトル 分類 日付
PLC21035 - End of Life Notice
PDF1.17 MB
EOL通知

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