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Product

Product

Isolated Half-Duplex/Full-Duplex 485 Transceiver With High Reliability

The NSi8308xE is a series of isolated RS-485 transceivers based on NOVOSENSE's digitally isolated transceiver technology, where the NSI83085E is a half-duplex RS-485 transceiver and the NSI83086E is a full-duplex RS-485 transceiver. Both products are UL1577-qualified, support a dielectric strength of 5kVrms, and feature low emission, low power consumption and high immunity to electromagnetic interference. The bus pins on the bus side of the NIRS485 is designed with ±10kV ESD protection to ground at system level. This product is designed with a fail-safe circuit that ensures the receiver output is logic high when the receiver input is disconnected or shorted. It features a receiver input impedance of 1/8 unit load, allowing up to 256 transceivers to be connected to the bus.

The data rate of the NSI83085E is 12Mbps, and that of the NSI83086E is 16Mbps.



Product Features

• Dielectric strength 5000Vrms

• Bus side supply voltage: 3.0V to 5.5V

• VDD1 supply voltage: 2.5V to 5.5V

• High CMTI: ±150kV/μs

• High system-level EMC performance:

o Bus pins conform to IEC61000-4-2±10kV ESD

• Fail-safe receiver

• Supporting 256 transceivers

• Lifetime of isolated gate: > 60 years

• Operation temperature: -40℃~105℃

• RoHS compliant package: SOW16



Safety Certificate

• UL1577 qualified: 5kVrms for 1 min.

• CQC qualified: Conform to GB4943.1 -2011

• CSA qualified: Components conform to 5A

• VDE qualified: DIN V VDE V 0884-11:2017-1



Application

•Industrial automation system

•Isolated 485 communication system

•Smart power metering and water meters

•Security and surveillance systems


Functional Block Diagram

8308xe-框图1.png8308xe-框图2.png

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