Overview
The ISO7720DWVR is a high-performance, dual-channel digital isolator produced by Texas Instruments. This device is part of the ISO772x family, which is designed to provide robust isolation and high electromagnetic immunity. The ISO7720DWVR features a double capacitive silicon dioxide (SiO2) insulation barrier, ensuring high isolation ratings and long-term reliability. It is suitable for a wide range of applications requiring reliable data isolation and protection against noise and surges.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Isolation Rating | Up to 5000 VRMS | VRMS |
| Surge Capability | Up to 12.8 kV | kV |
| Common-Mode Transient Immunity (CMTI) | ±100 kV/µs | kV/µs |
| Supply Voltage Range | 2.25 V to 5.5 V | V |
| Operating Temperature Range | –55°C to +125°C | °C |
| Data Rate | Up to 100 Mbps | Mbps |
| Propagation Delay | 11 ns typical | ns |
| Package Type | 8-pin SOIC wide-body (DWV) | |
| Power Consumption | Typical 1.7 mA per channel at 1 Mbps | mA |
Key Features
- Robust isolation barrier with >30-year projected lifetime at 1.5 kVRMS working voltage
- Up to 5000 VRMS isolation rating and up to 12.8 kV surge capability
- Wide supply range: 2.25 V to 5.5 V and 2.25-V to 5.5-V level translation
- Default output high (ISO772x) and low (ISO772xF) options
- Low power consumption and low propagation delay
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity
- ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier
- Safety-related certifications including DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, and GB 4943.1
Applications
- Industrial automation
- Hybrid electric vehicles
- Motor control
- Power supplies
- Solar inverters
- Medical equipment
These devices are used in conjunction with isolated power supplies to prevent noise currents on data buses, such as RS-485, RS-232, and CAN, from damaging sensitive circuitry.
Q & A
- What is the isolation rating of the ISO7720DWVR?
The ISO7720DWVR has an isolation rating of up to 5000 VRMS.
- What is the maximum surge capability of the ISO7720DWVR?
The device can withstand up to 12.8 kV surge capability.
- What is the common-mode transient immunity (CMTI) of the ISO7720DWVR?
The CMTI is ±100 kV/µs.
- What is the operating temperature range of the ISO7720DWVR?
The operating temperature range is –55°C to +125°C.
- What is the data rate capability of the ISO7720DWVR?
The device supports data rates up to 100 Mbps.
- What type of package does the ISO7720DWVR come in?
The device is available in an 8-pin SOIC wide-body (DWV) package.
- What are the safety-related certifications for the ISO7720DWVR?
The device is certified according to DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, and GB 4943.1.
- What are the typical applications for the ISO7720DWVR?
The device is used in industrial automation, hybrid electric vehicles, motor control, power supplies, solar inverters, and medical equipment.
- How does the ISO7720DWVR protect against electromagnetic interference?
The device provides robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity, and low emissions.
- What is the power consumption of the ISO7720DWVR?
The typical power consumption is 1.7 mA per channel at 1 Mbps.
