ISO15DWR

The ISO15DWR is a versatile isolation interface IC that excels in meeting TIA/EIA RS-485 requirements, supporting up to 256 nodes with 1/8 unit load, and offering high signaling rates of up to 1 Mbps. It features thermal shutdown protection, low bus capacitance, impressive transient immunity, and a fail-safe receiver. Additionally, it accommodates 3.3-V inputs while being 5-V tolerant and holds various safety and regulatory approvals, including 2500 VRMS isolation ratings. Overall, the ISO15DWR combines robust performance, safety measures, and compliance with industry standards, making it an ideal choice for reliable and efficient data communication in networked applications.

·Security systems

·Chemical production

·Factory automation

·Motor and motion control

·HVAC and building automation networks

·Networked security stations

The ISO15 is an isolated half-duplex differential line transceiver while the ISO35 is an isolated fullduplex differential line driver and receiver for TIA/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 V_PK per VDE and 2500 V_RMS 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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