Overview
The ISO7321FCDR is a robust and low-power dual-channel digital isolator produced by Texas Instruments. This component is designed to provide reliable and high-speed signal isolation, making it suitable for various industrial and harsh environment applications. It operates with TTL input thresholds and supports supply voltages from 3 V to 5.5 V, ensuring compatibility with a wide range of systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC1, VCC2) | –0.5 to 6 | V |
| Input Voltage (INx) | –0.5 to VCC + 0.5 | V |
| Output Current (IO) | ±15 | mA |
| Junction Temperature (TJ) | –40 to 150 | °C |
| Storage Temperature (Tstg) | –65 to 150 | °C |
| Propagation Delay (Typical at 5V) | 33 ns | ns |
| Data Rate | 25 Mbps | Mbps |
| Transient Immunity | 65 kV/μs | kV/μs |
| Isolation Voltage | ≥3600 VRMS for 1 second | VRMS |
Key Features
- Robust Electromagnetic Compatibility (EMC) and transient immunity of 65 kV/μs.
- Low propagation delay of 33 ns (typical at 5V supplies).
- Supports 3.3 V and 5 V level translation.
- Wide temperature range: –40°C to 125°C.
- Integrated noise filters for harsh industrial environments.
- Unidirectional channel type.
- Operates from 3 V to 5.5 V supply levels.
Applications
The ISO7321FCDR is ideal for applications requiring high-speed signal isolation and robust EMC performance. These include industrial control systems, medical devices, automotive systems, and any environment where noise currents or electromagnetic interference could compromise sensitive circuitry. It is particularly useful in conjunction with isolated power supplies to prevent noise currents from affecting local ground and sensitive circuitry.
Q & A
- What is the primary function of the ISO7321FCDR?
The ISO7321FCDR is a dual-channel digital isolator designed to provide reliable and high-speed signal isolation. - What are the supported supply voltage ranges for the ISO7321FCDR?
The component operates from 3 V to 5.5 V supply levels. - What is the propagation delay of the ISO7321FCDR?
The typical propagation delay at 5V supplies is 33 ns. - What is the data rate supported by the ISO7321FCDR?
The ISO7321FCDR supports a data rate of up to 25 Mbps. - What is the isolation voltage rating of the ISO7321FCDR?
The isolation voltage rating is ≥3600 VRMS for 1 second. - What are the key features of the ISO7321FCDR in terms of EMC and noise immunity?
The component features robust EMC and transient immunity of 65 kV/μs, along with integrated noise filters for harsh industrial environments. - In what types of applications is the ISO7321FCDR typically used?
It is used in industrial control systems, medical devices, automotive systems, and other environments requiring high-speed signal isolation and robust EMC performance. - What is the operating temperature range of the ISO7321FCDR?
The operating temperature range is –40°C to 125°C. - Does the ISO7321FCDR support level translation?
Yes, it supports 3.3 V and 5 V level translation. - What is the package type of the ISO7321FCDR?
The component is available in an SOIC-8 package.
