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Texas Instruments ISOUSB111 Isolated USB Repeater

Texas Instruments ISOUSB111 Isolated USB Repeater is a galvanically-isolated USB 2.0 compliant repeater supporting full speed (12Mbps) and low speed (1.5Mbps) signaling rates. The device supports automatic speed detection and connection, a reflection of pull-ups/pull-downs, allowing drop-in USB hub, link power management, peripheral, host, and cable isolation. The device supports automatic role reversal; if, after disconnect, a new connection is detected on the Upstream facing port, then the Upstream and Downstream port definitions are reversed. This feature enables the device to support Type-C Dual Role Port (DRP) and USB On-The-Go (OTG) implementations. The device uses a silicon dioxide (SiO2) insulation barrier with a withstand voltage of up to 5000VRMS. It also has a working voltage of 1500VRMS. The device protects against high voltage and prevents noise currents from the bus from entering the local ground when used in conjunction with isolated power supplies. The Texas Instruments ISOUSB111 device is available for both basic and reinforced isolation. It supports a wide ambient temperature range of –40°C to +125°C. The device comes in the standard SOIC-16 (16-DW) package and a smaller SSOP-16 (16-DWX) package.

Features

  • Compliant to USB 2.0
  • Supports low speed (1.5Mbps) and full speed (12Mbps) signaling
  • Automatic connection and speed detection
  • Supports L1 (sleep) and L2 (suspend) low-power states
  • Supports automatic role reversal for USB On-The-Go (OTG) and Type-C® Dual Role Port (DRP) designs
  • High CMTI (100kV/µs)
  • 4.25V to 5.5V VBUS voltage range 
    • 3.3V internal LDO
  • Meets CISPR32 class B emissions limits
  • –40°C to +125°C ambient temperature range
  • 16-SOIC and 16-SSOP package options
  • Safety-related certifications
    • 7071VPK VIOTM and 2121VPK VIORM (Reinforced and Basic Options) per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000VRMS isolation for 1 minute per UL 1577
    • IEC 62368-1, IEC 60601-1 and IEC 61010-1 certifications
    • CQC, CSA, and TUV certifications
    • 16-SOIC certifications complete; 16-SSOP certifications planned

Applications

  • USB hub, host, peripheral, and cable isolation
  • Medical
  • Factory automation
  • Motor drives
  • Grid infrastructure
  • Power delivery

Functional Block Diagram

Block Diagram - Texas Instruments ISOUSB111 Isolated USB Repeater

Texas Instruments ISOUSB111 Isolated USB Repeater