Overview
The ISO7721DWR is a high-performance, dual-channel digital isolator manufactured by Texas Instruments. Designed for applications requiring robust isolation, this component is part of the ISO772x series, known for its high-speed data transmission and enhanced electromagnetic compatibility (EMC). The ISO7721DWR is particularly suited for industrial automation, automotive electronics, and communication systems, offering reliable isolation for sensitive circuits. Its key selling points include a high isolation voltage of 5000Vrms, a data rate of 100Mbps, and a wide operating temperature range from -55°C to 125°C, making it a versatile choice for demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Manufacturer | Texas Instruments | - | - |
| Model | ISO7721DWR | - | - |
| Function | Digital Isolator | - | Enhanced basic, dual-channel |
| Isolation Voltage | 5000 | Vrms | UL 1577 compliant |
| Data Rate | 100 | Mbps | - |
| Channels | 2 | - | Unidirectional |
| Supply Voltage | 2.25 - 5.5 | V | - |
| Operating Temperature | -55 - 125 | °C | - |
| Propagation Delay | 16 | ns | Typical |
| Rise/Fall Time | 1.8 / 1.9 | ns | Typical |
| Package | 16-SOIC | - | Wide body |
| CMTI | 85 | kV/μs | Minimum |
Key Features
- High isolation voltage of 5000Vrms ensures robust protection for sensitive circuits.
- Supports high-speed data transmission up to 100Mbps, ideal for fast communication systems.
- Wide supply voltage range (2.25V to 5.5V) enhances compatibility with various systems.
- Excellent electromagnetic compatibility (EMC) reduces system-level ESD, EFT, and surge risks.
- Dual-channel design with unidirectional channels provides flexible isolation solutions.
- Operates reliably in extreme temperatures from -55°C to 125°C, suitable for harsh environments.
Applications
The ISO7721DWR is widely used in industrial automation, automotive electronics, and communication systems. In industrial automation, it isolates control signals to prevent noise interference in sensitive circuits. In automotive electronics, it ensures reliable data transmission in CAN and LIN bus systems. For communication systems, it provides robust isolation for RS-485, RS-232, and other data buses, enhancing system reliability and performance. Its high isolation voltage and EMC performance make it a preferred choice for applications requiring stringent safety and reliability standards.
Q & A
What is the isolation voltage of the ISO7721DWR?
The ISO7721DWR offers an isolation voltage of 5000Vrms, ensuring robust protection for sensitive circuits.
What is the maximum data rate supported by this component?
The ISO7721DWR supports a high-speed data rate of up to 100Mbps.
What is the operating temperature range of the ISO7721DWR?
It operates reliably in temperatures ranging from -55°C to 125°C.
How many channels does the ISO7721DWR have?
It features two unidirectional channels for flexible isolation solutions.
What is the supply voltage range for this component?
The supply voltage range is 2.25V to 5.5V.
What is the typical propagation delay of the ISO7721DWR?
The typical propagation delay is 16ns.
Is the ISO7721DWR compliant with UL 1577?
Yes, it is compliant with UL 1577 standards.
What is the package type of the ISO7721DWR?
It comes in a 16-SOIC wide-body package.
What is the minimum common-mode transient immunity (CMTI) of this component?
The minimum CMTI is 85kV/μs.
What are the typical applications of the ISO7721DWR?
It is commonly used in industrial automation, automotive electronics, and communication systems.
