Isolated Full-Duplex RS-485 Transceivers

Isolated Full-Duplex RS-485 Transceivers

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This module is an isolated full-duplex differential line driver and receiver for TIA/EIA RS485/RS422 applications. The module is 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 isolation of 2500Vrms between bus line Trans-receiver and the logic-level interface. The circuit works with a single supply 3.3V input. SN6505 Chip and Wurth Elekronics 760390015 transformer help to generate 5V DC to power up isolated circuitry. The module has been designed using ISO35 IC which is an isolated full-duplex RS485 trans-receiver, SN6505 IC used to form isolated DC-DC converter to power up the bus side of isolated circuitry of ISO35, LM1117-5V IC regulates the output of DC-DC converter and provides 5V DC. CN2 6 Pin header connector provided to power up the board and micro-controller interface, CN3 for Full-Duplex communication. CN1 is for AUX power 5V DC.

Isolated Full-Duplex RS-485 Transceivers – [Link]

About mixos

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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