ISO1176
- 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.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | ISO1176 Isolated RS-485 Profibus Transceiver datasheet (Rev. F) | PDF | HTML | 2023. 8. 17 | |
| 인증서 | VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. AA) | 2026. 6. 11 | |||
| 인증서 | UL Certificate of Compliance File E181974 Vol 4 Sec 2 (Rev. A) | 2026. 1. 8 | |||
| Application brief | How to Isolate Signal and Power for an RS-485 System (Rev. D) | PDF | HTML | 2025. 11. 7 | ||
| 인증서 | CSA Certificate for ISO1176DW, ISO308xDW, ISO15xDW, ISO035xDW (Rev. A) | 2025. 8. 20 | |||
| 애플리케이션 노트 | Isolated RS-485 Transceiver Reference Design (Rev. A) | PDF | HTML | 2022. 9. 23 | ||
| 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 | ||
| 백서 | Why are Digital Isolators Certified to Meet Electrical Equipment Standards? | 2021. 11. 16 | |||
| 백서 | Distance Through Insulation: How Digital Isolators Meet Certification Requiremen | PDF | HTML | 2021. 6. 11 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
ISO1176EVM — ISO1176EVM 평가 모듈
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TIDA-00128 — 회로 차단기용 저전력, 저잡음 아날로그 프론트 엔드 설계(ACB/MCCB-ETU)
이 레퍼런스 디자인은 MCCB(Molded Case Circuit Breaker) 전자 트립 장치에 사용하기 위한 것입니다. 연산 증폭기 기반 설계는 과전류 접지 고장 릴레이를 위한 전류 모니터링 역할을 합니다. 저렴한 연산 증폭기를 사용하는 이 설계는 픽업(A) 정확도 ±10%와 시간 지연 정확도 0~20%를 제공합니다. 또한 이 설계는 -10~70°C의 주변 온도 내구성과 높은 전자기 내성과 같은 기능을 통해 혹독한 환경 조건을 염두에 두고 있습니다. 마지막으로 이 설계의 아날로그 프론트 엔드는 TI MSP430 MCU와 (...)
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This reference design is the analog front end (AFE) for an electronic overload relay, used for monitoring and protecting motors from overcurrent or undercurrent events. It is an ideal tool for developers creating overload relays for sensitive AC motors in industrial applications. This programmable (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOIC (DW) | 16 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.