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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