Overview
The ISO7741FQDBQQ1 is a high-performance, quad-channel digital isolator produced by Texas Instruments. This device is part of the ISO774x-Q1 family, which is specifically designed for automotive applications and is AEC-Q100 qualified. It features a robust isolation barrier, high electromagnetic immunity, and low emissions, making it suitable for isolating CMOS or LVCMOS digital I/Os in demanding environments.
Key Specifications
| Parameter | Value |
|---|---|
| Package | QSOP (DBQ-16) |
| Pins | 16 |
| Operating Temperature Range (°C) | -40 to 125 |
| Isolation Rating (VRMS) | Up to 3000 (DBQ package) |
| Surge Capability | Up to 12.8 kV |
| Common Mode Transient Immunity (CMTI) | ±100 kV/µs typical |
| Supply Voltage Range | 2.25 V to 5.5 V |
| Data Rate | Up to 100 Mbps |
| Propagation Delay | 10.7 ns typical (5-V Supplies) |
| Power Consumption | Typical 1.5 mA per channel at 1 Mbps |
Key Features
- Qualified for automotive applications and AEC-Q100 qualified with a device temperature grade of –40°C to 125°C.
- Functional Safety-Capable with documentation available to aid in functional safety system design.
- Robust isolation barrier with >30-year projected lifetime at 1500 VRMS working voltage.
- High electromagnetic immunity and low emissions.
- Wide supply range: 2.25 V to 5.5 V and 2.25-V to 5.5-V level translation.
- Default output high (ISO774x) and low (ISO774xF) options.
- Enable pins for putting outputs in high impedance for multi-master driving applications and reducing power consumption.
- System-level ESD, EFT, and surge immunity, including ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- Safety-related certifications: DIN EN IEC 60747-17 (VDE 0884-17), UL 1577 component recognition program, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1.
Applications
- Automotive systems requiring high isolation and robust electromagnetic compatibility.
- Industrial control systems where high reliability and safety are critical.
- Medical devices that need to meet stringent safety and isolation standards.
- Power supply and motor control systems in harsh environments.
- Any application requiring the isolation of CMOS or LVCMOS digital I/Os with high data rates and low power consumption.
Q & A
- What is the primary function of the ISO7741FQDBQQ1?
The ISO7741FQDBQQ1 is a quad-channel digital isolator designed to isolate CMOS or LVCMOS digital I/Os while providing high electromagnetic immunity and low emissions.
- What are the operating temperature ranges for the ISO7741FQDBQQ1?
The operating temperature range is –40°C to 125°C.
- What is the isolation rating of the ISO7741FQDBQQ1 in the DBQ package?
The isolation rating is up to 3000 VRMS in the DBQ package.
- What is the maximum data rate supported by the ISO7741FQDBQQ1?
The device supports up to 100 Mbps data rate.
- What safety certifications does the ISO7741FQDBQQ1 have?
The device has certifications such as DIN EN IEC 60747-17 (VDE 0884-17), UL 1577 component recognition program, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1.
- How does the ISO7741FQDBQQ1 handle power consumption?
The device has low power consumption, typically 1.5 mA per channel at 1 Mbps.
- What is the propagation delay of the ISO7741FQDBQQ1?
The propagation delay is 10.7 ns typical at 5-V supplies.
- Does the ISO7741FQDBQQ1 have any surge protection capabilities?
Yes, it has up to 12.8 kV surge capability and ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- What are the default output states for the ISO7741FQDBQQ1?
The default output is high for devices without the suffix F and low for devices with the suffix F.
- Can the ISO7741FQDBQQ1 be used in multi-master driving applications?
Yes, the device has enable pins that can put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption.
