Texas Instruments ISOUSB211 Bedienungsanleitung

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ISOUSB211 High/Full/Low Speed Isolated USB Repeater

1 Features

•Compliant to USB 2.0

•Supports low speed (1.5 Mbps), full speed

(12Mbps) and high speed (480Mbps) 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: 100kV/µs

•±8kV IEC 61000-4-2 contact discharge protection

across isolation barrier

•V

BUS

voltage range: 4.25V to 5.5V

–3.3V and 1.8V internal LDOs

•Meets CISPR32 class B emissions limits

•Ambient temperature range: –40°C to 125°C

•Small footprint 28-SSOP package

•Safety-related certifications:

–8000V

PK

V

IOTM

and 2121V

PK

V

IORM

(Reinforced) per DIN EN IEC 60747-17 (VDE

0884-17)

–5700V

RMS

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

UD+

V

BUS1

UD-

GND1

DD+

GND2

DD-

V

BUS2

Galvanic

Isolation Barrier

ISOUSB211

V

3P3V2

Peripheral

MCU

DP

GND

DM

VCC

3.3 V (local supply)

PERIPHERAL

Upstream

Port

Connector

USB

HOST

Application Diagram

3 Description

ISOUSB211 is a galvanically-isolated USB 2.0

compliant repeater supporting low speed (1.5Mbps),

full speed (12Mbps) and high speed (480Mbps)

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 (SiO

2

)

insulation barrier with a withstand voltage of up

to 5700V

RMS

and a working voltage of 1500V

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. The device 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.

Package Information

PART NUMBERPACKAGE

(1)

PACKAGE SIZE

(2)

ISOUSB211SSOP (28) DP10.30mm × 7.50mm

(1)For more information, see Section 11.

(2)The package size (length × width) is a nominal value and

includes pins, where applicable.

Device Information

PART NUMBERFEATURERATING

ISOUSB211

(1)

Protection LevelReinforced

Surge Isolation

Voltage

12800V

PK

Isolation Rating5700V

RMS

Isolation Working

Voltage

1500V

RMS

/

2121V

PK

(1)Reinforced Isolation Option.

ISOUSB211

SLLSFC5D – NOVEMBER 2021 – REVISED APRIL 2025

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.

Produktspezifikationen