ISO35

隔离式 3.3V 半双工 RS-485 收发器

The ISO15 is an isolated half-duplex differential line transceiver while the is an isolated full-duplex differential line driver and receiver for A/EIA 485/422 applications. The ISO15M and ISO35M have extended ambient temperature ratings of –55°C to 125°C while the ISO15 and ISO35 are specified over –40°C to 85°C.

These devices are ideal for long transmission lines because the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical barrier of the device is tested to provide isolatlion of 4000 VPK per VDE and 2500 VRMS per UL and CSA between the bus-line transceiver and the logic-level interface.

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. These isolated devices can significantly increase protection and reduce the risk of damage to expensive control circuits.

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Meets or Exceeds TIA/EIA RS-485 Requirements

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1/8 Unit Load – Up to 256 Nodes on a Bus

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Signaling Rates up to 1 Mbps

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Thermal Shutdown Protection

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Low Bus Capacitance – 16 pF Typical

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50 kV/µs Typical Transient Immunity

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Fail-safe Receiver for Bus Open, Short, Idle

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3.3-V Inputs are 5-V Tolerant

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Safety and Regulatory Approvals

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4000-VPK VIOTM, 560-VPK VIORM per DIN V VDE

V 0884-10 VDE V 0884-10:2006-12 and DIN EN 61010-1

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2500 VRMS Isolation Rating per UL 1577

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2500 VRMS Isolation Rating per CSA CA5A and IEC 60950-1

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APPLICATIONS

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Security Systems

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Chemical Production

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Factory Automation

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Motor and Motion Control

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HVAC and Building Automation Networks

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Networked Security Stations

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