TISN75179BDR
Overview
The SN75179BDR is a differential driver and receiver pair designed for full-duplex data communication on balanced transmission lines. It meets TIA/EIA-422-B and TIA/EIA-485-A standards, making it a reliable choice for robust industrial networking. This device integrates one driver and one receiver into a single 8-pin SOIC package to facilitate bidirectional communication over long distances.
Why Choose This Part
This transceiver features 50 mV typical receiver hysteresis to improve noise immunity and includes thermal-shutdown protection for the driver. It operates on a standard 5V supply and provides positive- and negative-current limiting to protect against line faults. The full-duplex architecture allows simultaneous transmit and receive operations without the need for direction control pins.
Applications
Key Specifications
Getting Started
To implement this part, provide a stable 4.75V to 5.25V supply and place a 0.1 uF bypass capacitor close to the VCC pin. Ensure the differential lines are terminated with resistors matching the characteristic impedance of the cable (typically 120 ohms) to prevent signal reflections. Evaluation can be performed using generic SOIC-8 breakout boards integrated into an existing RS-422/485 bus.
