Texas Instruments

ISO7840FDWWR  

Digital Isolators

The Texas Instruments ISO7840FDWWR is a high-performance, low-power, and highly integrated single-chip solution designed for industrial and automotive applications that require isolated RS-485 communication. Here's a brief description, features, and applications of the ISO7840FDWWR:

Description:

The ISO7840FDWWR is a member of the ISO7840 family of isolated RS-485 transceivers. It is a monolithic integrated circuit that combines a 3.3V or 5V RS-485 transceiver with a high-voltage isolation barrier, providing robust and reliable communication in harsh industrial environments.

Features:

1. Robust RS-485 transceiver: The device features a robust RS-485 transceiver that can operate with a wide range of common-mode voltages and provides excellent noise immunity.
2. High-voltage isolation: The ISO7840FDWWR provides high-voltage isolation of up to 2500Vrms, ensuring safe and reliable communication even in the presence of high-voltage transients.
3. Low power consumption: The device is designed for low power consumption, making it suitable for battery-powered or energy-sensitive applications.
4. Small form factor: The ISO7840FDWWR is available in a compact 16-pin wide body SOIC package, making it easy to integrate into space-constrained designs.
5. Wide operating temperature range: The device can operate over a wide temperature range of -40°C to +105°C, making it suitable for various industrial and automotive applications.
6. ESD protection: The ISO7840FDWWR features built-in ESD protection, ensuring reliable operation in environments with high levels of electrostatic discharge.
7. Fail-safe feature: The device has a fail-safe feature that ensures the output is held in a defined state in case of an isolation failure.

Applications:

1. Industrial control systems: The ISO7840FDWWR is ideal for use in industrial control systems, where reliable and isolated communication is critical for safety and performance.
2. Automotive applications: The device is suitable for automotive applications that require isolated RS-485 communication, such as in-vehicle networks, telematics, and infotainment systems.
3. Medical equipment: The ISO7840FDWWR can be used in medical equipment that requires isolated communication, such as monitoring devices, imaging systems, and diagnostic equipment.
4. Renewable energy systems: The device can be used in renewable energy systems, such as solar power inverters and wind turbine controllers, to ensure reliable and isolated communication.
5. Building automation: The ISO7840FDWWR can be used in building automation systems for isolated communication between control panels, sensors, and actuators.

In summary, the Texas Instruments ISO7840FDWWR is a highly integrated, isolated RS-485 transceiver designed for industrial and automotive applications. Its robust performance, high-voltage isolation, low power consumption, and wide operating temperature range make it an ideal choice for a variety of applications requiring reliable and isolated communication.

ISO7840FDWWR Documents

Download datasheets and manufacturer documentation for ISO7840FDWWR

Datasheets :

ISO7840(F)DW Datasheet      

Design Resources :

Digital Isolator Design Guide      

Other Related Documents :

Isolation Glossary