Overview
The ISO7842DW from Texas Instruments is a high-performance, quad-channel digital isolator designed for robust signal isolation in industrial, automotive, and communication applications. This product belongs to the category of digital isolators and is engineered to provide reliable isolation with high-speed data transmission. The ISO7842DW is particularly suited for applications requiring high noise immunity, low power consumption, and enhanced safety. Its unique selling points include its high isolation voltage, low propagation delay, and compliance with stringent industry standards, making it a competitive choice for modern electronic systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Isolation Voltage | 5000 | VRMS | 1 minute duration |
| Data Rate | 100 | Mbps | Maximum |
| Propagation Delay | 11 | ns | Typical |
| Operating Temperature | -55 to 125 | °C | Wide range |
| Supply Voltage | 2.25 to 5.5 | V | Dual supply |
| Isolation Rating | 5000 | VRMS | UL 1577 certified |
| Package | SOIC-16 | - | DW package |
| Power Consumption | 1.5 | mA/channel | Typical |
Key Features
- High Isolation Voltage: Provides up to 5000 VRMS isolation for enhanced safety and reliability.
- High-Speed Data Transmission: Supports data rates up to 100 Mbps, ideal for fast communication systems.
- Low Propagation Delay: Ensures minimal signal latency, critical for real-time applications.
- Wide Operating Temperature Range: Functions reliably in extreme environments from -55°C to 125°C.
- Low Power Consumption: Optimized for energy-efficient designs, reducing overall system power requirements.
Applications
The ISO7842DW is widely used in various industries due to its robust isolation and high-speed capabilities. In industrial automation, it ensures safe and reliable signal transmission in motor control and PLC systems. In automotive electronics, it supports communication in electric vehicles and battery management systems. Additionally, it is employed in communication systems for isolating high-speed data lines and protecting sensitive components from noise and voltage spikes.
Q & A
1. What is the isolation voltage of the ISO7842DW?
The ISO7842DW offers an isolation voltage of 5000 VRMS.
2. What is the maximum data rate supported?
It supports a maximum data rate of 100 Mbps.
3. What is the typical propagation delay?
The typical propagation delay is 11 ns.
4. What is the operating temperature range?
It operates reliably from -55°C to 125°C.
5. What is the supply voltage range?
The supply voltage ranges from 2.25 V to 5.5 V.
6. Is the ISO7842DW certified for safety standards?
Yes, it is UL 1577 certified.
7. What package does the ISO7842DW come in?
It is available in the SOIC-16 (DW) package.
8. How does the ISO7842DW ensure low power consumption?
It consumes only 1.5 mA per channel, making it energy-efficient.
9. Can the ISO7842DW be used in automotive applications?
Yes, it is suitable for automotive electronics, including EVs and battery management systems.
10. What are the key advantages of the ISO7842DW?
Its key advantages include high isolation voltage, high-speed data transmission, low propagation delay, and wide operating temperature range.
