Overview
The ISO7731DBQR is a high-performance, triple-channel digital isolator manufactured by Texas Instruments. Designed for applications requiring robust isolation, this component ensures reliable signal transmission across isolated barriers. It is particularly suited for industrial automation, automotive electronics, and other high-noise environments. The ISO7731DBQR stands out for its high electromagnetic immunity, low power consumption, and compliance with international safety standards such as UL, VDE, CSA, TUV, and CQC.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Isolation Rating | 5000, 3000 | V RMS | DW and DBQ packages respectively |
| Number of Channels | 3 | # | |
| Data Rate (Max) | 100 | Mbps | |
| Propagation Delay (Typ) | 10.7 | ns | |
| Current Consumption per Channel (1 Mbps) | 1.53 | mA | |
| Operating Temperature Range | -55 to 125 | °C | |
| Package | SSOP-16 | ||
| Surge Voltage Capability | 12800, 6400 | Vpk |
Key Features
- High-speed, robust EMC performance for reliable signal isolation.
- Low power consumption, ideal for energy-efficient designs.
- Compliance with international safety standards (UL, VDE, CSA, TUV, CQC).
- High electromagnetic immunity ensures stable operation in noisy environments.
- Enable pins for multi-master driving applications and reduced power consumption.
Applications
The ISO7731DBQR is widely used in various industries, including:
- Industrial Automation: Ensures reliable communication between control systems and sensors in high-noise environments.
- Automotive Electronics: Provides isolation for CAN bus and other communication interfaces in vehicles.
- Medical Equipment: Safeguards sensitive electronics from high-voltage circuits in medical devices.
- Power Supplies: Isolates control circuits from power stages in switch-mode power supplies.
Q & A
1. What is the isolation rating of the ISO7731DBQR?
The ISO7731DBQR has an isolation rating of 5000V RMS for the DW package and 3000V RMS for the DBQ package.
2. How many channels does the ISO7731DBQR have?
It features three isolated channels.
3. What is the maximum data rate supported by this component?
The maximum data rate is 100 Mbps.
4. Is the ISO7731DBQR compliant with international safety standards?
Yes, it complies with UL, VDE, CSA, TUV, and CQC standards.
5. What is the typical propagation delay?
The typical propagation delay is 10.7 ns.
6. What is the operating temperature range?
It operates within a temperature range of -55°C to 125°C.
7. What package does the ISO7731DBQR use?
It is available in an SSOP-16 package.
8. Does it support multi-master driving applications?
Yes, it includes enable pins for multi-master driving applications.
9. What is the current consumption per channel at 1 Mbps?
The current consumption is 1.53 mA per channel at 1 Mbps.
10. What are the typical applications of the ISO7731DBQR?
It is commonly used in industrial automation, automotive electronics, medical equipment, and power supplies.
