1 Features

• 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

• VBUS 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-VPK VIOTM and 2121-VPK VIORM

(Reinforced and Basic Options) per DIN EN

IEC 60747-17 (VDE 0884-17)

– 5000-VRMS isolation for 1 minute per UL 1577

– IEC 62368-1, IEC 60601-1 and IEC 61010-1

certifications

– CQC, TUV and CSA certifications

2 Applications

• USB Hub, Host, Peripheral and Cable Isolation

• Medical

• Factory automation

• Motor drives

• Grid infrastructure

• Power delivery

• USB Audio

3 Description

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 VRMS and a working voltage of 1500 VRMS.

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 both

basic and reinforced isolation (see Reinforced and

Basic Isolation Options). 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.