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Random news from the Archive

SN65HVD82 - RS-485 interface with enhanced anti-interference and ESD protection 29.10.2015

To ensure reliable data communication, Texas Instruments offers the SN485HVD65 RS-82 transceiver with improved performance.

The microcircuit allows you to build an RS-485 network that is resistant to both interference and emergency situations caused by electrostatic discharges, breaks or short circuits on the line. The SN65HVD82 transceiver is surge tolerant up to +-18V on the A and B lines. The built-in 60mV hysteresis is an effective tool for dealing with noise and interference. The microcircuit meets a number of requirements of the IEC standard for ESD protection and is designed to build highly reliable industrial networks.

Applications SN65HVD82: electricity meters, building automation, industrial networks, security systems.

The SN65HVD82 interface chip is available in a standard pinout package commonly used in RS-485 transceivers from various manufacturers. This allows the SN65HVD82 to be installed in an existing product, in the event that it is necessary to increase the overall reliability of the device.

The microcircuit has a supply voltage of 5 V, while it easily fits into microcontrollers with a 3 V supply.

Despite the high technical parameters, SN65HVD82 can be purchased at a fairly attractive price, even in comparison with simpler RS-485 transceivers.

Specifications SN65HVD82:

ESD protection HBM: +-16 kV;
Protection IEC61000-4-2 Discharge Contact: +-12 kV;
Protection IEC61000-4-4 Fast Transient Burst: +4 kV;
Speed: 250 kbps;
Fault Protection: -18 to 18V;
Noise Rejection Receiver Hysteresis: 60 mV;
Short circuit output current limitation: -150 to 150 mA;
Fail safe protection:
idle;
Open;
short;
ICC Consumption (Max): 0,9 mA;
Operating temperature: -40...85°С;
Chassis: SOIC-8.

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