ISOUSB211 High/Full/Low Speed Isolated USB Repeater

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

Reinforced and Basic Isolation Options

FEATURE

ISOUSB211

ISOUSB211B

Protection Level

Reinforced

Basic

Surge Isolation Voltage

12800 VPK

6000 VPK

Isolation Rating

5000 VRMS

3000 VRMS

Isolation Working Voltage

1500 VRMS /

2121 VPK

1500 VRMS /

2121 VPK

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.

Device Information

PART NUMBER(1)

PACKAGE

BODY SIZE (NOM)

ISOUSB211

SSOP (28) DP

10.30 mm × 7.50 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

UD+

VBUS1

UD-

GND1

DD+

GND2

DD-

VBUS2

Galvanic

Isolation Barrier

ISOUSB211

V3P3V2

Peripheral

MCU

DP

GND

DM

VCC

3.3 V (local supply)

PERIPHERAL

Upstream

Port

Connector

USB

HOST

Application Diagram

ISOUSB211

SLLSFC5B – NOVEMBER 2021 – REVISED SEPTEMBER 2022

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.