Texas Instruments

ISO7821FDWWR

ISO7821FDWWR Description

The ISO7821FDWWR from Texas Instruments is a high-performance, dual-channel digital isolator designed for robust signal isolation in demanding industrial and automotive applications. Utilizing capacitive coupling technology, it delivers 5700Vrms isolation with a 100kV/µs common mode transient immunity (CMTI), ensuring reliable data transmission in noisy environments. Operating at 100Mbps with a supply voltage range of 2.25V to 5.5V, it supports bidirectional communication with unidirectional channels (1 input/1 output per channel). The device features low propagation delay (16ns max) and minimal pulse width distortion (4.6ns max), making it ideal for high-speed digital isolation. Packaged in a 16-SOIC and available in tape & reel, it meets ROHS3 and REACH compliance standards.

ISO7821FDWWR Features

• High Isolation Voltage: 5700Vrms for enhanced safety in high-voltage systems.
• Fast Data Rate: 100Mbps with 2.4ns rise/fall times for high-speed signal integrity.
• Robust Noise Immunity: 100kV/µs CMTI ensures stability in electrically noisy environments.
• Wide Supply Range: 2.25V–5.5V compatibility for flexible system integration.
• Low Power Consumption: No isolated power required, reducing system complexity.
• Compact & Reliable: 16-SOIC package with MSL3 rating for surface-mount applications.

ISO7821FDWWR Applications

• Industrial Automation: Isolate PLCs, motor drives, and sensors in high-noise settings.
• Automotive Systems: Enhance safety in EV battery management and onboard chargers.
• Medical Equipment: Ensure patient safety in diagnostic and monitoring devices.
• Renewable Energy: Isolate communication in solar inverters and power converters.
• Test & Measurement: Protect sensitive equipment from high-voltage transients.

Conclusion of ISO7821FDWWR

The ISO7821FDWWR stands out for its high-speed performance, robust isolation, and industry-leading noise immunity, making it a top choice for critical applications requiring reliable signal integrity. Its wide voltage range, compact form factor, and compliance with global standards ensure seamless integration into diverse systems. Whether for industrial, automotive, or medical use, this isolator delivers unmatched reliability and efficiency.