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Product

RS-485 transceiver with integrated isolated power DC-DC converter

NSIP83086 is a high-reliability full-duplex isolated RS-485 transceiver with integrated isolated DC-DC power supply. Isolated DC-DC power supply can be based on on-chip transformer, the feedback PWM signal is transmitted to the primary side by a digital isolator based on NOVOSENSE capacitance isolation technology. Highly integrated solutions simplify system design and improve reliability. NSIP83086 is UL1577-qualified for safety and supports 5kVrms insulation voltage. The bus pins on the bus side of the NSIP83086 is designed with ±8kV ESD protection to GND2 at system level. This component 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.

Product Features

•  Insulation voltage up to 5000Vrms

•  Integrated isolated DC-DC power supply provided

•  1.8V~5V MCU supported in I/O voltage range

•  Power supply voltage:

oVDD: 4.5V to 5.5V

oVDDL: 1.8V to 5.5V

•  Over current and over heat protection

•  High CMTI:150kV/us

•  Data transmission rate: 16Mbps

•  Supporting 256 transceivers

•  High system-level EMC performance:

o Bus pins conform to IEC61000-4-2±8kV ESD

•  Isolated grid life: >60 years

•  Operation temperature: -40℃~105℃

•  RoHS compliant package: SOW20


Safety Certificate

• UL1577 qualified: 5kVrms for 1 min.

• CQC qualified: Conform to GB4943.1 -2011

• CSA qualified: Components conform to 5A

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


Application

• Industrial automation system

• Isolated RS-485 communication system

• Smart power metering and water meters

• Security and surveillance systems


Functional Block Diagram

83086-框图.png

For more product information, please contact us.

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