Overview
The ISO7742DBQR 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 isolation and high electromagnetic immunity. The ISO7742DBQR features two forward and two reverse-direction channels, making it versatile for various applications requiring data isolation and protection.
It is available in a 16-pin QSOP (DBQ) package and supports a wide supply range from 2.25 V to 5.5 V, enabling level translation and low power consumption. The device is certified with multiple safety standards, including UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1, ensuring its reliability in safety-critical applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Data Rate | 100 Mbps | |
| Isolation Rating | Up to 5000 VRMS | |
| 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 | |
| Propagation Delay | 10.7 ns typical (5-V Supplies) | |
| Power Consumption per Channel | Typical 1.5 mA at 1 Mbps | |
| Operating Temperature Range | -40°C to 125°C | |
| Package Type | QSOP (DBQ-16) | |
| Pins | 16 |
Key Features
- Robust isolation barrier with >30-year projected lifetime at 1500 VRMS working voltage and up to 5000 VRMS isolation rating.
- High-speed data rate of 100 Mbps.
- Wide supply range: 2.25 V to 5.5 V, supporting level translation.
- Low power consumption, typical 1.5 mA per channel at 1 Mbps.
- Low propagation delay: 10.7 ns typical (5-V Supplies).
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity.
- ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- Low emissions.
- Default output high (ISO774x) and low (ISO774xF) options.
- Safety-related certifications including 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.
- Automotive applications (for the ISO7742-Q1 version).
Q & A
- What is the data rate of the ISO7742DBQR? The data rate is 100 Mbps.
- What is the isolation rating of the ISO7742DBQR? The isolation rating is up to 5000 VRMS.
- What is the surge capability of the ISO7742DBQR? The surge capability is up to 12.8 kV.
- What is the common mode transient immunity (CMTI) of the ISO7742DBQR? The CMTI is ±100 kV/μs typical.
- What is the supply voltage range of the ISO7742DBQR? The supply voltage range is 2.25 V to 5.5 V.
- What is the propagation delay of the ISO7742DBQR? The propagation delay is 10.7 ns typical (5-V Supplies).
- How much power does the ISO7742DBQR consume per channel? The power consumption is typical 1.5 mA per channel at 1 Mbps.
- What are the safety certifications of the ISO7742DBQR? The device is certified with UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1.
- In what package is the ISO7742DBQR available? The device is available in a 16-pin QSOP (DBQ) package.
- What are the typical applications of the ISO7742DBQR? Typical applications include industrial automation, motor control, power supplies, solar inverters, and medical equipment.
