Overview
The ISO7721FQDRQ1, manufactured by Texas Instruments, is a high-performance dual-channel digital isolator designed for applications requiring robust isolation and reliable data transmission. This device is part of the ISO7721-Q1 series, which is specifically tailored for automotive and industrial applications. It offers enhanced insulation ratings and complies with various international standards, making it a versatile choice for isolating CMOS or LVCMOS digital I/O signals. The ISO7721FQDRQ1 is available in an 8-pin SOIC package and is optimized for low power consumption, high electromagnetic immunity, and low emissions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Isolation Voltage | 3000 | Vrms | SOIC-8 package |
| Data Rate | 100 | Mb/s | |
| Supply Voltage | 2.25 to 5.5 | V | |
| Operating Temperature | -40 to +125 | °C | |
| Propagation Delay | 11 | ns | |
| Power Supply Current | 7.3 | mA | |
| Channels | 2 | Unidirectional | |
| Isolation Type | Capacitive Coupling | ||
| Package | SOIC-8 | ||
| Qualification | AEC-Q100 |
Key Features
- High electromagnetic immunity and low emissions for reliable data transmission.
- Low power consumption, making it suitable for energy-sensitive applications.
- Enhanced insulation ratings compliant with VDE, CSA, TUV, and CQC standards.
- Capacitive isolation technology ensures robust signal integrity.
- Designed for automotive and industrial applications, ensuring high reliability in harsh environments.
Applications
The ISO7721FQDRQ1 is widely used in automotive systems, such as CAN and LIN bus communication, to protect sensitive circuits from damage. It is also employed in industrial automation for isolating digital signals in PLCs, motor drives, and power inverters. Additionally, its robust design makes it suitable for medical equipment, renewable energy systems, and other applications requiring high isolation and reliable data transmission.
Q & A
1. What is the isolation voltage of the ISO7721FQDRQ1?
The isolation voltage is 3000 Vrms for the SOIC-8 package.
2. What is the maximum data rate supported by this device?
The maximum data rate is 100 Mb/s.
3. What is the operating temperature range?
The device operates from -40°C to +125°C.
4. Is the ISO7721FQDRQ1 compliant with automotive standards?
Yes, it is AEC-Q100 qualified.
5. What is the typical power supply current?
The typical power supply current is 7.3 mA.
6. How many channels does the ISO7721FQDRQ1 have?
It has two unidirectional channels.
7. What type of isolation technology is used?
It uses capacitive coupling for isolation.
8. What is the propagation delay?
The propagation delay is 11 ns.
9. Can this device be used in industrial automation?
Yes, it is suitable for industrial automation applications.
10. What is the default output state in case of input power loss?
For devices with the 'F' suffix, the default output state is low.
