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隔離式 RS-485 收發器

ISO1500

現行

1 Mbps、半雙工、 3kVrms 超小型隔離式 RS-485 和 RS-422 收發器

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產品規格表

ISO1500

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) 1 Working isolation voltage (VIOWM) (Vrms) 400 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4242 Withstand isolation voltage (VISO) (Vrms) 2500 ESD HBM (kV) 16 VCC1 (min) (V) 1.71 VCC1 (max) (V) 5.5 VCC2 (min) (V) 4.5 VCC2 (max) (V) 5.5 Fail safe Idle, Open, Short CMTI (min) (kV/µs) 85 Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 3.7 Clearance (min) (mm) 3.7
Rating Catalog Integrated isolated power No Isolation rating Basic Duplex Half Data rate (max) (Mbps) 1 Working isolation voltage (VIOWM) (Vrms) 400 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4242 Withstand isolation voltage (VISO) (Vrms) 2500 ESD HBM (kV) 16 VCC1 (min) (V) 1.71 VCC1 (max) (V) 5.5 VCC2 (min) (V) 4.5 VCC2 (max) (V) 5.5 Fail safe Idle, Open, Short CMTI (min) (kV/µs) 85 Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 3.7 Clearance (min) (mm) 3.7
SSOP (DBQ) 16 29.4 mm² (4.9 mm × 6 mm)
  • Meets or exceeds requirements of TIA/EIA-485-A
  • Half-duplex transceiver
  • Low-EMI 1-Mbps data rate
  • Bus I/O protection
    • ± 16 kV HBM ESD
  • 1.71-V to 5.5-V Logic-side supply (VCC1), 4.5-V to 5.5-V Bus-side supply (VCC2)
  • 1/8 Unit load: up to 256 nodes on bus
  • Failsafe receiver for bus open, short, and idle
  • 100-kV/µs (typical) High common-mode transient immunity
  • Extended temperature range from –40°C to +125°C
  • Glitch-free power-up and power-down for hot plug-in
  • Ultra-small SSOP (DBQ-16) package
  • Safety-related certifications:
    • 4242-VPK VIOTM and 566-VPK VIORM per DIN VDE V 0884-11:2017-01
    • 3000-VRMS Isolation for 1 minute per UL 1577
    • IEC 60950-1, IEC 62368-1 and IEC 61010-1 certifications
    • CQC, TUV, and CSA certifications
  • Meets or exceeds requirements of TIA/EIA-485-A
  • Half-duplex transceiver
  • Low-EMI 1-Mbps data rate
  • Bus I/O protection
    • ± 16 kV HBM ESD
  • 1.71-V to 5.5-V Logic-side supply (VCC1), 4.5-V to 5.5-V Bus-side supply (VCC2)
  • 1/8 Unit load: up to 256 nodes on bus
  • Failsafe receiver for bus open, short, and idle
  • 100-kV/µs (typical) High common-mode transient immunity
  • Extended temperature range from –40°C to +125°C
  • Glitch-free power-up and power-down for hot plug-in
  • Ultra-small SSOP (DBQ-16) package
  • Safety-related certifications:
    • 4242-VPK VIOTM and 566-VPK VIORM per DIN VDE V 0884-11:2017-01
    • 3000-VRMS Isolation for 1 minute per UL 1577
    • IEC 60950-1, IEC 62368-1 and IEC 61010-1 certifications
    • CQC, TUV, and CSA certifications

The ISO1500 device is a galvanically-isolated differential line transceiver for TIA/EIA RS-485 and RS-422 applications. This device has a 3-channel digital isolator and an RS-485 transceiver in an ultra-small 16-pin SSOP package. The bus pins of this transceiver are protected against IEC ESD contact discharge and IEC EFT events. The receiver output has a failsafe for bus open, short, and idle conditions. The small solution size of ISO1500 greatly reduces the board space required compared to other integrated isolated RS-485 solutions or discrete implementation with optocouplers and non-isolated RS-485 transceiver.

The device is used for long distance communications. Isolation breaks the ground loop between the communicating nodes, allowing for a much larger common mode voltage range. The symmetrical isolation barrier of each device is tested to provide 3000 VRMS of isolation for 1 minute per UL 1577 between the bus-line transceiver and the logic-level interface.

The ISO1500 device can operate from 1.71 V to 5.5 V on side 1 which lets the devices interface with low-voltage FPGAs and ASICs. The supply voltage on side 2 is from 4.5 V to 5.5 V. This device supports a wide operating ambient temperature range from –40°C to +125°C.

The ISO1500 device is a galvanically-isolated differential line transceiver for TIA/EIA RS-485 and RS-422 applications. This device has a 3-channel digital isolator and an RS-485 transceiver in an ultra-small 16-pin SSOP package. The bus pins of this transceiver are protected against IEC ESD contact discharge and IEC EFT events. The receiver output has a failsafe for bus open, short, and idle conditions. The small solution size of ISO1500 greatly reduces the board space required compared to other integrated isolated RS-485 solutions or discrete implementation with optocouplers and non-isolated RS-485 transceiver.

The device is used for long distance communications. Isolation breaks the ground loop between the communicating nodes, allowing for a much larger common mode voltage range. The symmetrical isolation barrier of each device is tested to provide 3000 VRMS of isolation for 1 minute per UL 1577 between the bus-line transceiver and the logic-level interface.

The ISO1500 device can operate from 1.71 V to 5.5 V on side 1 which lets the devices interface with low-voltage FPGAs and ASICs. The supply voltage on side 2 is from 4.5 V to 5.5 V. This device supports a wide operating ambient temperature range from –40°C to +125°C.

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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 ISO1500 3-kVRMS Basic Isolated RS-485/RS-422 Transceiver in Ultra-Small Package datasheet (Rev. D) PDF | HTML 2020/2/13
證書 VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 2026/7/15
證書 TUV Certificate for Isolation Devices (Rev. M) 2026/5/7
證書 UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) 2026/5/7
Application brief How to Isolate Signal and Power for an RS-485 System (Rev. D) PDF | HTML 2025/11/7
證書 CQC Certificate for ISOxxDBQ (Rev. B) 2025/8/19
證書 CSA Certificate for ISO1500DBQ 2023/3/23
應用說明 Isolated RS-485 Transceiver Reference Design (Rev. A) PDF | HTML 2022/9/23
Product overview Isolation for RS-485 PDF | HTML 2022/8/21
Application brief Robust Isolated RS-485 Enables New Industrial Applications (Rev. C) PDF | HTML 2022/7/26
Application brief How to Isolate RS-485 for Smallest Size and Highest Reliability (Rev. C) PDF | HTML 2022/7/6
白皮書 Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 2021/11/16
白皮書 Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 2021/6/11
白皮書 Simplifying Signal Chain Design for High Performance in Small Systems 2020/10/22
技術文章 The hidden cost of optocouplers for isolated RS-485 and CAN designs PDF | HTML 2019/1/28

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開發板

ISO1500DBQEVM — ISO1500DBQ 超小型封裝、隔離式 RS-485 評估模組

ISO1500DBQEVM 是一款評估模組 (EVM)，用於評估採用小型 16 接腳封裝（封裝代碼 DBQ）的高性能強化隔離式 RS-485 ISO1500。EVM 具備足夠的測試點和跨接器選項，可用於評估具最少外部零組件的裝置。
使用指南: PDF
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ISO1500 IBIS MODEL

SLLM423.ZIP (92 KB) - IBIS 模型
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SSOP (DBQ) 16 Ultra Librarian
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