• Compliant to USB 2.0
• Supports low speed (1.5 Mbps), full speed (12 Mbps) and high speed (480 Mbps) signaling
• Does not need external crystal or clock input
• Automatic speed and connection detection
• Supports L1 (sleep) and L2 (suspend) low-power states
• Programmable equalization to compensate board trace loss in high speed mode
• CDP advertising on downstream side
• Supply OK indication on opposite side
• Supports automatic role reversal for USB On-The-Go (OTG) and Type-C® Dual Role Port (DRP) designs
• High CMTI: 100 kV/µs
• ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
• V_BUS voltage range: 4.25 V to 5.5 V
  • 3.3 V and 1.8 V internal LDOs
• Meets CISPR32 class B emissions limits
• Ambient temperature range: –40°C to +125°C
• Small footprint 28-SSOP package
• Safety-related certifications:
  • 7071-V_PK V_IOTM and 2121-V_PK V_IORM (Reinforced) per DIN EN IEC 60747-17 (VDE 0884-17)
  • 5000-V_RMS isolation for 1 minute per UL 1577
  • IEC 62368-1, IEC 60601-1 and IEC 61010-1 certifications
  • CQC, TUV and CSA certifications

• USB Hub, Host, Peripheral and Cable Isolation
• Medical
• Factory automation
• Motor drives
• Grid infrastructure
• Power delivery
• USB Audio

ISOUSB211 is a galvanically-isolated USB 2.0 compliant repeater supporting low speed (1.5 Mbps), full speed (12 Mbps) and high speed (480 Mbps) signaling rates. The device supports automatic connect and speed detection, reflection of pull-ups/pull-downs, and link power management allowing drop-in USB hub, host, peripheral and cable isolation. The device also supports automatic role reversal - if after disconnect, a new connect is detected on the Upstream facing port, then the Upstream and Downstream port definitions are reversed. This feature enables the device to support USB On-The-Go (OTG) and Type-C Dual Role Port (DRP) implementations. The ISOUSB211 has inbuilt programmable equalization to cancel signal loss caused by board traces, which helps in meeting USB2.0 high-speed TX and RX eye-diagram templates. This device uses a silicon dioxide (SiO₂) insulation barrier with a withstand voltage of up to 5000 V_RMS and a working voltage of 1500 V_RMS. Used in conjunction with isolated power supplies, the device protects against high voltage, and prevents noise currents from the bus from entering the local ground. The ISOUSB211 device is available for reinforced isolation. It supports a wide ambient temperature range of –40°C to +125°C. The device is available in the small foot-print SSOP-28 (28-DP) package.

Application Diagram