Texas Instruments

ISOW7821DWE

ISOW7821DWE Description

The ISOW7821DWE from Texas Instruments is a high-performance, dual-channel digital isolator with integrated isolated power, designed for robust signal isolation in demanding industrial and automotive applications. It features 5000Vrms isolation voltage, ensuring reliable protection against high-voltage transients. Utilizing capacitive coupling technology, it delivers 100Mbps data rates with low propagation delay (17.6ns max) and minimal pulse width distortion (4.7ns max). The device operates from 3V to 5.5V, making it versatile for mixed-voltage systems. Its 100kV/µs common-mode transient immunity (CMTI) ensures stable performance in noisy environments. Packaged in a 16-SOIC tube, it is ROHS3 compliant and rated for MSL 3 (168 hours).

ISOW7821DWE Features

• Integrated Isolated Power: Eliminates the need for an external isolated DC-DC converter, simplifying design.
• High-Speed Performance: 100Mbps data rate with 4ns rise/fall times, ideal for high-frequency signal isolation.
• Robust Isolation: 5000Vrms isolation and 100kV/µs CMTI for superior noise immunity.
• Low Power Consumption: Optimized for energy-efficient applications.
• Wide Supply Range: 3V to 5.5V compatibility for flexible system integration.
• Compact and Reliable: 16-SOIC surface-mount package with REACH unaffected and ROHS3 compliance.

ISOW7821DWE Applications

• Industrial Automation: Isolate communication interfaces (RS-485, CAN, SPI) in PLCs and motor drives.
• Automotive Systems: Enhance safety in battery management systems (BMS) and onboard chargers.
• Medical Equipment: Ensure patient safety in isolated sensor interfaces and diagnostic devices.
• Renewable Energy: Isolate gate drivers in solar inverters and wind turbine controls.
• Test & Measurement: Protect sensitive circuitry in high-voltage test equipment.

Conclusion of ISOW7821DWE

The ISOW7821DWE stands out as a highly integrated, high-speed digital isolator with built-in power isolation, offering superior noise immunity and reliability. Its compact design, wide voltage range, and robust performance make it an excellent choice for applications requiring high-voltage isolation and signal integrity. Whether in industrial, automotive, or medical systems, this isolator delivers exceptional performance while reducing system complexity and cost.