Texas Instruments

ISO35TDW

ISO35TDW Description

The ISO35TDW is a robust digital isolator designed and manufactured by Texas Instruments. It is a member of the digital isolators category and is specifically designed to handle RS422 and RS485 communication protocols. This device is known for its high performance and reliability in applications that require isolation between digital systems to prevent ground loops and noise.

ISO35TDW Features

• Inputs - Side 1/Side 2: The ISO35TDW has 2 inputs on Side 1 and 1 input on Side 2, making it versatile for various configurations.
• Common Mode Transient Immunity (Min): With a minimum of 25kV/µs, the ISO35TDW offers excellent protection against electrical noise and transients.
• Data Rate: It supports a data rate of up to 1Mbps, ensuring fast and efficient data transfer.
• Number of Channels: The device has 3 channels, which can be utilized for multiple data lines or for redundancy.
• Technology: Utilizing capacitive coupling technology, the ISO35TDW provides reliable isolation.
• Voltage - Supply: It operates on a supply voltage range of 3V to 3.6V, making it suitable for low-power applications.
• Voltage - Isolation: The ISO35TDW provides a high isolation voltage of 2500Vrms, ensuring safety and reliability.
• Mounting Type: It is designed for surface mount, which is ideal for PCB integration in compact spaces.
• Package: The ISO35TDW comes in a tube package, which is convenient for handling and storage.

ISO35TDW Applications

The ISO35TDW is ideal for applications where high-speed data transfer and isolation are crucial. Some specific use cases include:

• Industrial Automation: In environments with high electrical noise, the ISO35TDW can isolate different parts of an automation system, ensuring reliable communication.
• Medical Equipment: For devices that require galvanic isolation to protect both the patient and the equipment, the ISO35TDW provides a safe and efficient solution.
• Automotive Systems: In automotive applications where electrical noise and harsh environments are common, the ISO35TDW can isolate various electronic control units (ECUs) to maintain communication integrity.

Conclusion of ISO35TDW

The ISO35TDW from Texas Instruments stands out for its high data rate, robust isolation, and versatility in channel configuration. Its unique features, such as capacitive coupling technology and high common mode transient immunity, make it superior to similar models in the market. With its compliance to REACH and RoHS3 standards, the ISO35TDW is not only a high-performance device but also an environmentally responsible choice. It is an excellent choice for applications demanding reliable, high-speed communication in the presence of electrical noise and the need for isolation.