SN65LBC172A16DW

Updated: 2026-08-05

Overview

The SN65LBC172A16DW is a high-performance differential bus transceiver designed for industrial and automotive applications. It supports RS-485 and RS-422 communication standards, enabling reliable data transmission over long distances. The device is known for its robustness, featuring built-in ESD protection and a wide operating temperature range, making it suitable for harsh environments. Manufactured by Texas Instruments, this transceiver is widely used in automation systems, motor control, and other applications requiring high-speed differential signaling. Its low-power consumption and high noise immunity further enhance its appeal in industrial settings.

Structure and Working Principle

The SN65LBC172A16DW integrates a differential driver and receiver on a single chip. The driver converts single-ended signals into differential signals, which are then transmitted over twisted-pair cables. The receiver, on the other hand, converts the differential signals back into single-ended signals for processing by the host system. The device operates on a supply voltage range of 3V to 5.5V, ensuring compatibility with a variety of systems. Its fail-safe circuitry ensures that the receiver output remains in a known state when the inputs are open or shorted, preventing data corruption.

Key Features

One of the standout features of the SN65LBC172A16DW is its ESD protection, which safeguards the device from electrostatic discharges up to ±16kV. This makes it highly durable in industrial environments where such discharges are common. Additionally, the transceiver supports data rates up to 16Mbps, making it suitable for high-speed communication. Its wide operating temperature range of -40°C to 85°C ensures reliable performance in extreme conditions.

Application Areas

The SN65LBC172A16DW is commonly used in industrial automation systems, including PLCs, motor drives, and robotics. Its robustness and high-speed capabilities make it ideal for these applications. In the automotive sector, the transceiver is employed in vehicle communication networks, such as CAN buses and LIN buses. Its ability to operate in harsh environments aligns well with the demands of automotive electronics.

Maintenance and Precautions

To ensure optimal performance, the SN65LBC172A16DW should be properly grounded, and power supply filtering should be implemented to reduce noise. Avoid exposing the device to voltages beyond its specified range to prevent damage. Regular inspection of the communication lines for integrity and proper termination is also recommended. This helps maintain signal quality and prevents data loss or corruption.

B2B Procurement Guide

When procuring the SN65LBC172A16DW, consider the volume requirements and lead times, as these can vary by supplier. It's advisable to source from authorized distributors to ensure authenticity and warranty coverage. Pricing typically ranges from $2.50 to $4.00 per unit, depending on order quantity. For bulk purchases, negotiating with suppliers for better terms or discounts is often possible. Always verify the specifications to ensure compatibility with your application.