Overview
The ISO7741DBQR is a high-performance, quad-channel digital isolator produced by Texas Instruments. This device is part of the ISO774x family, which offers robust isolation barriers and high electromagnetic immunity. The ISO7741DBQR is designed for applications requiring reliable isolation of CMOS or LVCMOS digital I/Os, ensuring low power consumption and minimal emissions. It is available in a 16-pin QSOP (DBQ) package and is suitable for a wide range of industrial and automotive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Isolation Rating | 3000 | VRMS (DBQ package) |
| Surge Capability | Up to 12.8 kV | |
| Data Rate | 100 Mbps | |
| Supply Voltage Range | 2.25 V to 5.5 V | |
| Operating Temperature Range | -55°C to 125°C | |
| Power Consumption per Channel | Typical 1.5 mA at 1 Mbps | |
| Propagation Delay | Typical 10.7 ns (5V Supplies) | |
| Package Type | 16-pin QSOP (DBQ) | |
| CMTI (Common Mode Transient Immunity) | ±100 kV/μs typical |
Key Features
- Robust isolation barrier with >30-year projected lifetime at 1500 VRMS working voltage and up to 5000 VRMS isolation rating
- Up to 12.8 kV surge capability and ±100 kV/μs typical CMTI
- 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
- Low power consumption, typical 1.5 mA per channel at 1 Mbps
- Low propagation delay: 10.7 ns typical (5V Supplies)
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity
- ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
- Low emissions and automotive version available: ISO774x-Q1
- Safety-related certifications including DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1
Applications
- Industrial automation
- Motor control
- Power supplies
- Solar inverters
- Medical equipment
Q & A
- What is the isolation rating of the ISO7741DBQR?
The ISO7741DBQR has an isolation rating of up to 3000 VRMS in the DBQ package. - What is the maximum data rate supported by the ISO7741DBQR?
The ISO7741DBQR supports a data rate of up to 100 Mbps. - What is the operating temperature range of the ISO7741DBQR?
The operating temperature range is -55°C to 125°C. - What is the typical power consumption per channel at 1 Mbps?
The typical power consumption per channel at 1 Mbps is 1.5 mA. - What is the propagation delay of the ISO7741DBQR?
The propagation delay is typically 10.7 ns at 5V supplies. - Does the ISO7741DBQR have any safety-related certifications?
Yes, it has certifications including DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1. - What is the surge capability of the ISO7741DBQR?
The surge capability is up to 12.8 kV. - Is the ISO7741DBQR suitable for automotive applications?
Yes, an automotive version (ISO774x-Q1) is available. - What is the common mode transient immunity (CMTI) of the ISO7741DBQR?
The CMTI is ±100 kV/μs typical. - What package options are available for the ISO7741DBQR?
The ISO7741DBQR is available in a 16-pin QSOP (DBQ) package.
