Texas Instruments

ISO7721FDR  

Digital Isolators

The Texas Instruments ISO7721FDR is a high-performance, low-power, single-chip solution for industrial and automotive applications that require isolated digital communication. The device is designed to provide reliable communication in harsh environments, such as those found in industrial automation, automotive, and renewable energy systems.

Description:

The ISO7721FDR is a digital isolator that uses capacitive coupling to provide galvanic isolation between the transmitter and receiver sides. It features a 5 kVrms reinforced isolation barrier that ensures reliable performance in noisy environments. The device is available in a compact SOIC-8 package, making it suitable for space-constrained applications.

Features:

1. 5 kVrms reinforced isolation barrier: Provides robust protection against electrical noise and surges.
2. Low power consumption: The device consumes only 2.5 mA during normal operation, making it ideal for battery-powered applications.
3. Wide operating temperature range: The ISO7721FDR can operate in temperatures ranging from -40°C to +125°C, making it suitable for use in harsh environments.
4. Small footprint: The device is available in a SOIC-8 package, which is compact and easy to integrate into PCB designs.
5. Fail-safe feature: The isolator has a fail-safe feature that ensures the output is held in a known state in case of a fault or loss of communication.
6. High-speed data transfer: The device supports data transfer rates of up to 1 Mbps, making it suitable for high-speed communication applications.

Applications:

1. Industrial automation: The ISO7721FDR can be used in industrial control systems to provide isolated communication between controllers, sensors, and actuators.
2. Automotive: The device is suitable for use in automotive applications, such as battery management systems, electric vehicle charging stations, and in-vehicle communication networks.
3. Renewable energy systems: The isolator can be used in solar power inverters, wind turbine controllers, and energy storage systems to provide reliable communication and protection against electrical noise.
4. Medical equipment: The ISO7721FDR can be used in medical devices that require isolated communication between the control unit and patient interface.
5. Telecommunications: The device can be used in telecommunications equipment to provide isolated communication between different components, such as routers, switches, and modems.

In summary, the Texas Instruments ISO7721FDR is a high-performance, low-power digital isolator that offers robust isolation and reliable communication in harsh environments. Its compact form factor, wide operating temperature range, and high-speed data transfer capabilities make it suitable for a wide range of industrial, automotive, and renewable energy applications.

ISO7721FDR Documents

Download datasheets and manufacturer documentation for ISO7721FDR

PCN Assembly/Origin :

ISO7YYY 15/May/2018      

Datasheets :

ISO7720(F), ISO7721(F) Datasheet      

Design Resources :

Polyphase Shunt Metrology with Isolated AFE Reference Design      

Other Related Documents :

Isolation Glossary      

HTML Datasheet :

ISO7720(F), ISO7721(F) Datasheet      

PCN Design/Specification :

ISO7720/ISO7721 22/Jan/2019       ISO77xxDR/ISO7721FDR 31/Oct/2023