Overview
The ISOW7742DFMR is a high-performance digital isolator manufactured by Texas Instruments, designed to provide robust signal isolation in industrial and automotive applications. This product belongs to the category of digital isolators, offering enhanced noise immunity, high-speed data transmission, and reliable isolation capabilities. Marketed as a solution for systems requiring galvanic isolation, the ISOW7742DFMR is particularly suited for applications such as motor control, power inverters, and industrial automation. Its unique selling points include its high common-mode transient immunity (CMTI), low power consumption, and compliance with stringent safety standards.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 4 | - | 2 forward, 2 reverse |
| Data Rate | 100 | Mbps | Maximum |
| Isolation Voltage | 5000 | VRMS | 1 minute duration |
| CMTI | 100 | kV/µs | Minimum |
| Supply Voltage | 2.25 to 5.5 | V | Operating range |
| Operating Temperature | -40 to 125 | °C | Industrial grade |
| Package | SOIC-16 | - | Wide-body |
| Safety Certifications | UL, CSA, VDE, CQC | - | Compliant |
Key Features
- High-Speed Data Transmission: Supports data rates up to 100 Mbps, ensuring reliable communication in high-speed systems.
- Robust Isolation: Provides 5000 VRMS isolation voltage, enhancing system safety and reliability.
- High CMTI: Offers 100 kV/µs common-mode transient immunity, minimizing noise interference in harsh environments.
- Low Power Consumption: Optimized for energy efficiency, making it suitable for power-sensitive applications.
- Wide Supply Voltage Range: Operates from 2.25 V to 5.5 V, providing flexibility in various system designs.
Applications
The ISOW7742DFMR is widely used in industries requiring robust signal isolation and noise immunity. Key application areas include:
- Industrial Automation: Used in PLCs, motor drives, and control systems to ensure reliable signal transmission.
- Automotive Electronics: Applied in battery management systems (BMS) and electric vehicle (EV) powertrains for safe and efficient operation.
- Power Inverters: Ensures isolation in solar inverters and UPS systems, enhancing system safety.
- Medical Equipment: Provides isolation in patient monitoring systems and diagnostic devices, ensuring patient safety.
Q & A
1. What is the maximum data rate supported by the ISOW7742DFMR?
The ISOW7742DFMR supports a maximum data rate of 100 Mbps.
2. What is the isolation voltage of this device?
The isolation voltage is 5000 VRMS for 1 minute.
3. What is the operating temperature range?
The device operates in a temperature range of -40°C to 125°C.
4. Does the ISOW7742DFMR comply with safety standards?
Yes, it complies with UL, CSA, VDE, and CQC standards.
5. What is the supply voltage range?
The supply voltage range is 2.25 V to 5.5 V.
6. What is the package type?
The device is available in a wide-body SOIC-16 package.
7. What is the common-mode transient immunity (CMTI)?
The CMTI is 100 kV/µs, ensuring noise immunity in harsh environments.
8. Can this device be used in automotive applications?
Yes, it is suitable for automotive electronics, including EV powertrains and BMS.
9. How many channels does the ISOW7742DFMR have?
It has 4 channels (2 forward and 2 reverse).
10. Is the ISOW7742DFMR suitable for medical applications?
Yes, it provides robust isolation for medical equipment, ensuring patient safety.
