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ISO7721BDWR

TIISO7721BDWR

Texas Instruments
Digital Isolators Robust EMC dual-cha nnel 1/1 reinforce A A 595-ISO7721BDW
1,263 in stock
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Overview

The ISO7721BDWR is a high-performance, dual-channel digital isolator providing reinforced isolation up to 5000 Vrms. It features one forward and one reverse channel configuration, designed to protect sensitive circuitry from high-voltage transients and ground loops.

Why Choose This Part

This device offers high electromagnetic immunity and low emissions while supporting data rates up to 100 Mbps. It features a high common-mode transient immunity (CMTI) of 100 kV/microsecond, ensuring reliable signal integrity in noisy industrial environments.

Applications

Industrial Automation
Ideal for isolating RS-485, RS-232, and CAN bus communication lines in PLC and DCS environments.
Motor Drives
Provides signal isolation between low-voltage control logic and high-side gate drivers or power stages.
Medical Equipment
Ensures patient and operator safety by providing reinforced isolation in diagnostic and monitoring devices.
Power Supplies
Used in switched-mode power supplies to provide feedback loop isolation while maintaining high CMTI.

Getting Started

When designing the PCB, place bypass capacitors of 0.1 microfarads as close to the VCC pins as possible on both sides of the isolation barrier. Ensure that the creepage and clearance distances on the board match the 16-SOIC package specifications to maintain the reinforced isolation rating.

ISO7721 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Type Package Voltage - Isolation Stock
ISO7721BDWR (this part) — — — 1,263
ISO7721FDWR General Purpose SOIC-16 5000V 14,944
ISO7721DWR General Purpose SOIC-16 5000V 6,311
ISO7721FBDWR CAN, RS232, RS485 SOIC-16 5000V 13,508
ISO7721FDR General Purpose SOIC-8 3000V 1,282
ISO7721DR General Purpose SOIC-8 3000V 1,826