Overview
The ISO6741FQDWRQ1 is a high-performance, quad-channel digital isolator produced by Texas Instruments. It is designed for use in automotive and industrial applications, providing reliable galvanic isolation to protect against noise, voltage transients, and ground loop interference. This device is part of the ISO674x-Q1 family, which is AEC-Q100 qualified and meets various safety and regulatory standards such as VDE, TUV, CSA, and CQC. The ISO6741FQDWRQ1 ensures safe and secure communication in challenging environments and is particularly useful in conjunction with isolated power supplies to prevent noise currents on data buses like CAN and LIN from damaging sensitive circuitry.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (DW-16) |
| Number of Channels | 4 (3 forward, 1 reverse) |
| Isolation Rating | Up to 5000VRMS |
| Surge Isolation Voltage (VIOSM) | Up to 10kV |
| Transient Isolation Voltage (VIOTM) | 7071 VPK |
| CMTI (typ) | ±150kV/µs |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage Range | 1.71V to 5.5V |
| Data Rate (max) | 50Mbps |
| Propagation Delay Time (typ) | 11ns |
| Current Consumption per Channel (typ) at 1Mbps | 1.6mA |
| Default Output | High (ISO674x-Q1), Low (ISO674xF-Q1) |
Key Features
- Functional Safety-Capable with documentation to aid functional safety system design.
- AEC-Q100 qualified with a device temperature grade of –40°C to 125°C.
- Meets VDA320 isolation requirements.
- Robust isolation barrier with high lifetime at 1500VRMS working voltage.
- Up to 10kV surge capability and ±150kV/µs typical CMTI.
- Wide supply range: 1.71V to 1.89V and 2.25V to 5.5V.
- 1.71V to 5.5V level translation.
- Enable pins for putting outputs in high impedance for multi-controller driving applications.
- Low propagation delay and low power consumption.
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity.
- ±8kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- Low emissions.
Applications
The ISO6741FQDWRQ1 is suitable for various applications, including:
- Automotive systems: It is designed to meet the stringent requirements of automotive environments, including battery-powered systems.
- Industrial control systems: Provides reliable isolation against noise and voltage transients in industrial settings.
- Data communication buses: Protects data buses such as CAN and LIN from noise currents.
- Isolated power supplies: Used in conjunction with isolated power supplies to enhance system reliability.
Q & A
- Q: What is the maximum data rate supported by the ISO6741FQDWRQ1?
A: The ISO6741FQDWRQ1 supports data rates of up to 50Mbps. - Q: Is the ISO6741FQDWRQ1 suitable for use in automotive battery-powered systems?
A: Yes, it is suitable for automotive applications, including battery-powered systems, due to its low power consumption. - Q: What is the isolation rating of the ISO6741FQDWRQ1?
A: The isolation rating is up to 5000VRMS. - Q: What is the operating temperature range of the ISO6741FQDWRQ1?
A: The operating temperature range is –40°C to 125°C. - Q: Does the ISO6741FQDWRQ1 have any safety-related certifications?
A: Yes, it has certifications such as DIN EN IEC 60747-17 (VDE 0884-17), UL 1577 component recognition program, IEC 62368-1, IEC 61010-1, and IEC 60601-1. - Q: What is the typical propagation delay of the ISO6741FQDWRQ1?
A: The typical propagation delay is 11ns. - Q: How many channels does the ISO6741FQDWRQ1 have and what are their directions?
A: It has four channels, with three forward and one reverse-direction channel. - Q: What is the default output state of the ISO6741FQDWRQ1 in case of input power or signal loss?
A: The default output is high for devices without suffix F and low for devices with suffix F. - Q: Does the ISO6741FQDWRQ1 provide any electromagnetic compatibility features?
A: Yes, it offers robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity. - Q: What is the typical current consumption per channel at 1Mbps for the ISO6741FQDWRQ1?
A: The typical current consumption per channel at 1Mbps is 1.6mA.
