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隔離式 RS-485 收發器

ISO1176

現行

40-Mbps、半雙工、隔離式 RS-485 和 RS-422 收發器

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產品規格表

ISO1176

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Integrated isolated power No Isolation rating Basic Duplex Half Data rate (max) (Mbps) 40 Working isolation voltage (VIOWM) (Vrms) 400 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4000 Withstand isolation voltage (VISO) (Vrms) 2500 ESD HBM (kV) 16 VCC1 (min) (V) 3.15 VCC1 (max) (V) 5.5 VCC2 (min) (V) 4.75 VCC2 (max) (V) 5.25 Fail safe Idle, Open, Short CMTI (min) (kV/µs) 25 Operating temperature range (°C) -40 to 85 Creepage (min) (mm) 8.34 Clearance (min) (mm) 8.34
Rating Catalog Integrated isolated power No Isolation rating Basic Duplex Half Data rate (max) (Mbps) 40 Working isolation voltage (VIOWM) (Vrms) 400 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4000 Withstand isolation voltage (VISO) (Vrms) 2500 ESD HBM (kV) 16 VCC1 (min) (V) 3.15 VCC1 (max) (V) 5.5 VCC2 (min) (V) 4.75 VCC2 (max) (V) 5.25 Fail safe Idle, Open, Short CMTI (min) (kV/µs) 25 Operating temperature range (°C) -40 to 85 Creepage (min) (mm) 8.34 Clearance (min) (mm) 8.34
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Meets or exceeds the requirements of EN 50170 and TIA/EIA-485-A
  • Signaling rates up to 40 Mbps
  • Differential output exceeds 2.1 V (54 Ω load)
  • Low bus capacitance – 10 pF (maximum)
  • Up to 160 transceivers on a bus
  • 50 kV/µs typical transient immunity
  • Fail-safe receiver for bus open, short, idle
  • 3.3 V inputs are 5 V tolerant
  • Bus-pin ESD protection
    • 16 kV HBM between bus pins and GND2
    • 6 kV HBM between bus pins and GND1
  • Safety and regulatory approvals
    • 4000 V PK isolation, 560 V PK V IORM per DIN EN IEC 60747-17 (VDE 0884-17)
    • 2500 V RMS isolation rating per UL 1577
    • 4000 V PK isolation rating per CSA 62368-1
  • Meets or exceeds the requirements of EN 50170 and TIA/EIA-485-A
  • Signaling rates up to 40 Mbps
  • Differential output exceeds 2.1 V (54 Ω load)
  • Low bus capacitance – 10 pF (maximum)
  • Up to 160 transceivers on a bus
  • 50 kV/µs typical transient immunity
  • Fail-safe receiver for bus open, short, idle
  • 3.3 V inputs are 5 V tolerant
  • Bus-pin ESD protection
    • 16 kV HBM between bus pins and GND2
    • 6 kV HBM between bus pins and GND1
  • Safety and regulatory approvals
    • 4000 V PK isolation, 560 V PK V IORM per DIN EN IEC 60747-17 (VDE 0884-17)
    • 2500 V RMS isolation rating per UL 1577
    • 4000 V PK isolation rating per CSA 62368-1

The ISO1176 device is an isolated differential line transceiver designed for use in PROFIBUS applications. The device is ideal for long transmission lines because the ground loop is broken to provide for operation with a much larger common-mode voltage range. The symmetrical isolation barrier of each device is tested to provide 2500 V RMS of isolation per UL between the line transceiver and the logic level interface.

The galvanically isolated differential bus transceiver is an integrated circuit designed for bidirectional data communication on multipoint bus-transmission lines. The transceiver combines a galvanically isolated differential line driver and differential input line receiver. The driver has an active-high enable with isolated enable-state output on the ISODE pin (pin 10) to facilitate direction control. The driver differential outputs and the receiver differential inputs connect internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus allowing up to 160 nodes.

The PV pin (pin 7) is provided as a full-chip enable option. All device outputs become high impedance when a logic low is applied to the PV pin. For more information, see the function tables in .

Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or nearby sensitive circuitry if they are of sufficient magnitude and duration. The ISO1176 can significantly reduce the risk of data corruption and damage to expensive control circuits.

The device is characterized for operation over the ambient temperature range of –40°C to +85°C.

The ISO1176 device is an isolated differential line transceiver designed for use in PROFIBUS applications. The device is ideal for long transmission lines because the ground loop is broken to provide for operation with a much larger common-mode voltage range. The symmetrical isolation barrier of each device is tested to provide 2500 V RMS of isolation per UL between the line transceiver and the logic level interface.

The galvanically isolated differential bus transceiver is an integrated circuit designed for bidirectional data communication on multipoint bus-transmission lines. The transceiver combines a galvanically isolated differential line driver and differential input line receiver. The driver has an active-high enable with isolated enable-state output on the ISODE pin (pin 10) to facilitate direction control. The driver differential outputs and the receiver differential inputs connect internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus allowing up to 160 nodes.

The PV pin (pin 7) is provided as a full-chip enable option. All device outputs become high impedance when a logic low is applied to the PV pin. For more information, see the function tables in .

Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or nearby sensitive circuitry if they are of sufficient magnitude and duration. The ISO1176 can significantly reduce the risk of data corruption and damage to expensive control circuits.

The device is characterized for operation over the ambient temperature range of –40°C to +85°C.
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類型 標題 日期
* Data sheet ISO1176 Isolated RS-485 Profibus Transceiver datasheet (Rev. F) PDF | HTML 2023年 8月 17日
Certificate VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) 2024年 1月 31日
Certificate CSA Certificate for ISO1176DW, ISO308xDW, ISO15xDW, ISO035xDW 2023年 3月 22日
Application note Isolated RS-485 Transceiver Reference Design (Rev. A) PDF | HTML 2022年 9月 23日
Certificate UL Certificate of Compliance File E181974 Vol 4 Sec 2 2022年 8月 10日
Application brief Robust Isolated RS-485 Enables New Industrial Applications (Rev. C) PDF | HTML 2022年 7月 26日
Application brief How to Isolate RS-485 for Smallest Size and Highest Reliability (Rev. C) PDF | HTML 2022年 7月 6日
White paper Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 2021年 11月 16日
White paper Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 2021年 6月 11日
Application brief How to Isolate Signal and Power for an RS-485 System (Rev. C) PDF | HTML 2021年 5月 25日
More literature Blog: Top 7 design questions about isolated RS-485 transceivers 2018年 8月 6日
EVM User's guide ISO1176EVM 2008年 8月 12日

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使用指南: PDF
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模擬型號

ISO1176_3 IBIS Model

SLLC328.ZIP (19 KB) - IBIS Model
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模擬型號

ISO1176_5 IBIS Model

SLLC327.ZIP (18 KB) - IBIS Model
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Design guide: PDF
電路圖: PDF
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Design guide: PDF
電路圖: PDF
參考設計

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Test report: PDF
電路圖: PDF
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