Overview
The ISO7741FDBQR is a high-performance, quad-channel digital isolator produced by Texas Instruments. This device is part of the ISO774x family, which is designed to provide robust electrical isolation and high electromagnetic immunity. The ISO7741FDBQR features a unique configuration with three forward and one reverse-direction channel, making it versatile for various applications requiring data isolation.
The device is built with a double capacitive silicon dioxide (SiO2) insulation barrier, ensuring high isolation ratings and long-term reliability. It is suitable for use in a wide range of temperatures and supply voltages, making it a reliable choice for industrial, automotive, and medical applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Data Rate | 100 Mbps | |
| Isolation Rating | Up to 5000 VRMS (DW package), Up to 3000 VRMS (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 | |
| Temperature Range | –55°C to 125°C | |
| Power Consumption (typical per channel at 1 Mbps) | 1.5 mA | |
| Propagation Delay (typical at 5 V Supplies) | 10.7 ns | |
| Package Options | Wide-SOIC (DW-16), QSOP (DBQ-16) | |
| ESD Protection | ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier |
Key Features
- High-speed data rate of up to 100 Mbps
- Robust isolation barrier with >30-year projected lifetime at 1500 VRMS working voltage
- Wide supply range of 2.25 V to 5.5 V and level translation capabilities
- Default output high (ISO774x) and low (ISO774xF) options
- Low power consumption and low propagation delay
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity
- Automotive version available: ISO774x-Q1
- Safety-related certifications including DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, and GB 4943.1
Applications
- Industrial automation
- Motor control
- Power supplies
- Solar inverters
- Medical equipment
Q & A
- What is the maximum data rate of the ISO7741FDBQR?
The maximum data rate is 100 Mbps.
- What is the isolation rating of the ISO7741FDBQR?
The isolation rating is up to 5000 VRMS for the DW package and up to 3000 VRMS for the DBQ package.
- What is the surge capability of the ISO7741FDBQR?
The surge capability is up to 12.8 kV.
- What is the common mode transient immunity (CMTI) of the ISO7741FDBQR?
The CMTI is ±100 kV/μs typical.
- What is the supply voltage range of the ISO7741FDBQR?
The supply voltage range is 2.25 V to 5.5 V.
- What are the package options for the ISO7741FDBQR?
The package options are Wide-SOIC (DW-16) and QSOP (DBQ-16).
- Does the ISO7741FDBQR have ESD protection?
- What are the safety-related certifications for the ISO7741FDBQR?
The certifications include DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, and GB 4943.1.
- Is there an automotive version of the ISO7741FDBQR available?
- What are the typical applications of the ISO7741FDBQR?
The typical applications include industrial automation, motor control, power supplies, solar inverters, and medical equipment.
