SN65HVD78DGKR – TEXAS INSTRUMENTS

The Texas Instruments SN65HVD78DGKR is a single, high-speed, 3.3V-powered, RS-485/RS-422 transceiver in a space-saving 6-pin SOT-23 package. It features a ±15kV ESD protection rating on all pins, crucial for robust operation in noisy industrial environments. Operating from a 2.7V to 3.6V supply voltage, it boasts a data rate up to 10Mbps, enabling high-throughput communication. The device incorporates driver outputs capable of sourcing/sinking ±25mA, ensuring reliable signal transmission even with long cable lengths. Internal termination resistors are absent, allowing for flexible impedance matching tailored to the specific application. The device’s low power consumption (typically <10mW) makes it ideal for battery-powered applications. Common use cases include industrial automation, process control, and instrumentation where reliable, high-speed serial communication is paramount. Its small size and high ESD immunity offer significant advantages over larger, less robust alternatives, simplifying PCB layout and enhancing system reliability. The device's single supply operation simplifies power management, making it a cost-effective and efficient choice for various RS-485/RS-422 applications.