Overview
The ISOUSB111DWR, produced by Texas Instruments, is a galvanically-isolated USB 2.0 compliant repeater. This device supports both low speed (1.5 Mbps) and full speed (12 Mbps) signaling rates, making it versatile for various USB applications. It features automatic speed and connection detection, as well as support for USB On-The-Go (OTG) and Type-C Dual Role Port (DRP) designs through automatic role reversal. The ISOUSB111DWR is designed to provide high isolation and safety, making it suitable for use in environments requiring robust electrical insulation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VBUS Supply Voltage | -0.3 | 6 | V | |
| 3.3-V Input Supply Voltage | -0.3 | 4.25 | V | |
| Operating Free-Air Temperature | -40 | 125 | °C | |
| Junction Temperature | 150 | °C | ||
| Maximum Power Dissipation (Both Sides) | 157 | mW | ||
| Maximum Isolation Working Voltage | 1500 | VRMS | ||
| Maximum Repetitive Peak Isolation Voltage | 2121 | VPK | ||
| Common Mode Transient Immunity | 75 | 100 | kV/µs |
Key Features
- Compliant to USB 2.0 standards
- Supports low speed (1.5 Mbps) and full speed (12 Mbps) signaling
- Automatic speed and connection detection
- Supports L1 (sleep) and L2 (suspend) low-power states
- Automatic role reversal for USB OTG and Type-C DRP designs
- High common mode transient immunity (CMTI): 100 kV/µs
- VBUS voltage range: 4.25 V to 5.5 V with internal 3.3 V LDO
- Meets CISPR32 class B emissions limits
- Ambient temperature range: –40°C to +125°C
- Available in 16-SOIC and 16-SSOP package options
- Safety-related certifications including IEC 62368-1, IEC 60601-1, and IEC 61010-1
Applications
- USB Hub, Host, Peripheral, and Cable Isolation
- Medical devices
- Factory automation
- Motor drives
- Grid infrastructure
- Power delivery systems
- USB Audio applications requiring reinforced isolation
Q & A
- What USB speeds does the ISOUSB111DWR support? The ISOUSB111DWR supports both low speed (1.5 Mbps) and full speed (12 Mbps) signaling.
- Does the ISOUSB111DWR support automatic role reversal? Yes, it supports automatic role reversal for USB On-The-Go (OTG) and Type-C Dual Role Port (DRP) designs.
- What is the operating temperature range of the ISOUSB111DWR? The operating temperature range is –40°C to +125°C.
- What are the package options for the ISOUSB111DWR? It is available in 16-SOIC and 16-SSOP package options.
- What safety certifications does the ISOUSB111DWR have? It has certifications including IEC 62368-1, IEC 60601-1, and IEC 61010-1, among others.
- What is the maximum isolation working voltage of the ISOUSB111DWR? The maximum isolation working voltage is 1500 VRMS.
- How does the ISOUSB111DWR protect against high voltage and noise? It uses a silicon dioxide (SiO2) insulation barrier and supports isolated power supplies to protect against high voltage and prevent noise currents.
- Does the ISOUSB111DWR meet any specific emissions standards? Yes, it meets CISPR32 class B emissions limits.
- What is the common mode transient immunity (CMTI) of the ISOUSB111DWR? The CMTI is 100 kV/µs.
- Can the ISOUSB111DWR be used in medical devices? Yes, it is suitable for use in medical devices due to its robust safety features and certifications.
