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ISOUSB211 High/Full/Low Speed Isolated USB Repeater
SLLSFC5D
November 2021 – April 2025
ISOUSB211
PRODUCTION DATA
CONTENTS
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ISOUSB211 High/Full/Low Speed Isolated USB Repeater
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Power Ratings
5.6
Insulation Specifications
5.7
Safety-Related Certifications
5.8
Safety Limiting Values
5.9
Electrical Characteristics
5.10
Switching Characteristics
5.11
Insulation Characteristics Curves
5.12
Typical Characteristics
6
Parameter Measurement Information
6.1
Test Circuits
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Power Supply Options
7.3.2
Power Up
7.3.3
Symmetric Operation, Dual-Role Port, and Role-Reversal
7.3.4
Connect and Speed Detection
7.3.5
Disconnect Detection
7.3.6
Reset
7.3.7
LS/FS Message Traffic
7.3.8
HS Message Traffic
7.3.9
Equalization and Pre-emphasis
7.3.10
L2 Power Management State (Suspend) and Resume
7.3.11
L1 Power Management State (Sleep) and Resume
7.3.12
HS Test Mode Support
7.3.13
CDP Advertising
7.4
Device Functional Modes
8
Application and Implementation
8.1
Typical Application
8.1.1
Isolated Host or Hub
8.1.2
Isolated Peripheral - Self-Powered
8.1.3
Isolated Peripheral - Bus-Powered
8.1.4
Application Curve
8.1.4.1
Insulation Lifetime
8.1.5
Meeting USB 2.0 HS Eye-Diagram Specifications
8.2
Thermal Considerations
8.2.1
VBUS / V3P3V Power
8.2.2
VCCx / V1P8Vx Power
8.2.3
Example Configuration 1
8.2.4
Example Configuration 2
8.2.5
Example Configuration 3
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.1.1
Layout Example
8.4.1.2
PCB Material
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Related Documentation
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
11.1
Tape and Reel Information
IMPORTANT NOTICE
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Data Sheet
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 LDO
s
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
