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ISOUSB111DWR

ISOUSB111DWR Description

The ISOUSB111DWR from Texas Instruments is a high-performance, low-emissions USB isolator designed for full/low-speed USB applications. It provides robust galvanic isolation between USB hosts and peripherals, ensuring signal integrity and protection against ground loops, voltage transients, and EMI. Operating with a supply voltage range of 3V–3.6V or 4.25V–5.5V, it supports differential input/output and delivers a data rate up to 12Mbps with a low propagation delay of 358ns. Packaged in a surface-mount Tape & Reel (TR), it is RoHS3 compliant and rated for MSL 3 (168 hours) moisture sensitivity.

ISOUSB111DWR Features

• Low Emissions: Minimizes electromagnetic interference (EMI) for cleaner signal transmission.
• Dual Supply Range: Flexible operation with 3V–3.6V or 4.25V–5.5V inputs.
• High-Speed Isolation: Supports 12Mbps USB full-speed with 10pF input capacitance.
• Robust Protection: Isolates up to 2500V RMS, safeguarding against ground loops and surges.
• Low Power: Consumes only 12mA supply current, ideal for power-sensitive designs.
• Compact & Reliable: Surface-mount SOIC-16 package with REACH unaffected compliance.

ISOUSB111DWR Applications

• Industrial USB Interfaces: Isolates USB in PLCs, motor controls, and factory automation.
• Medical Devices: Ensures patient safety in diagnostic equipment with galvanic isolation.
• Test & Measurement: Protects sensitive instruments from ground noise in data acquisition systems.
• Consumer Electronics: Enhances reliability in USB hubs, printers, and peripherals.
• Automotive Systems: Isolates infotainment/USB charging ports from vehicle power noise.

Conclusion of ISOUSB111DWR

The ISOUSB111DWR stands out for its low EMI, high-speed isolation, and dual-voltage flexibility, making it a superior choice for USB signal integrity in harsh environments. Its low power consumption, robust protection, and compact form factor cater to industrial, medical, and automotive applications where reliability is critical. Texas Instruments’ design ensures compliance with RoHS3 and REACH, offering a future-proof solution for isolated USB connectivity.