Overview
The ISO7742-Q1, produced by Texas Instruments, is a high-performance, quad-channel digital isolator designed for automotive applications. This device is part of the ISO774x-Q1 family, which offers robust isolation and high electromagnetic immunity. The ISO7742-Q1 is AEC-Q100 qualified and features a wide operating temperature range of –40°C to 125°C, making it suitable for demanding automotive environments. It provides reinforced insulation ratings and is certified by various safety standards, including UL 1577, VDE, CSA, TUV, and CQC.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | QSOP (DBQ-16) | |
| Pins | 16 | |
| Operating Temperature Range | –40°C to 125°C | °C |
| Data Rate | 100Mbps | |
| Isolation Rating (DBQ Package) | 3000VRMS | VRMS |
| Supply Voltage Range | 2.25V to 5.5V | V |
| Propagation Delay (Typical at 5V Supplies) | 10.7ns | ns |
| Power Consumption (Typical per Channel at 1Mbps) | 1.5mA | mA |
| Surge Capability | Up to 12.8kV | kV |
| CMTI (Typical) | ±100kV/µs | kV/µs |
Key Features
- Qualified for automotive applications and AEC-Q100 certified 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 a projected lifetime of over 30 years at 1500VRMS working voltage and up to 5700VRMS isolation rating.
- Wide supply range of 2.25V to 5.5V and level translation capabilities.
- Default output high (ISO774x) and low (ISO774xF) options.
- Low power consumption and low propagation delay.
- Robust electromagnetic compatibility (EMC) and system-level ESD, EFT, and surge immunity.
- ±8kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- Low emissions and extra-wide SOIC, wide-SOIC, and QSOP package options.
- 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
- Hybrid, electric, and powertrain systems (EV/HEV).
- Battery management systems (BMS).
- On-board chargers).
- Traction inverters).
- DC/DC converters).
- Inverter and motor control systems).
Q & A
- What is the ISO7742-Q1 used for?
The ISO7742-Q1 is a high-performance, quad-channel digital isolator used in automotive applications, particularly in hybrid, electric, and powertrain systems, battery management, on-board chargers, traction inverters, DC/DC converters, and inverter and motor control systems).
- What are the key certifications of the ISO7742-Q1?
The ISO7742-Q1 is AEC-Q100 certified and has safety-related 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 operating temperature range of the ISO7742-Q1?
The operating temperature range of the ISO7742-Q1 is –40°C to 125°C).
- What is the data rate of the ISO7742-Q1?
The data rate of the ISO7742-Q1 is up to 100Mbps).
- What are the package options for the ISO7742-Q1?
The ISO7742-Q1 is available in extra-wide SOIC (DWW-16), wide-SOIC (DW-16), and QSOP (DBQ-16) package options).
- What is the isolation rating of the ISO7742-Q1 in the DBQ package?
The isolation rating of the ISO7742-Q1 in the DBQ package is up to 3000VRMS).
- What is the typical power consumption of the ISO7742-Q1 per channel at 1Mbps?
The typical power consumption of the ISO7742-Q1 per channel at 1Mbps is 1.5mA).
- Does the ISO7742-Q1 have any surge protection capabilities?
Yes, the ISO7742-Q1 has up to 12.8kV surge capability and ±8kV IEC 61000-4-2 contact discharge protection across the isolation barrier).
- What is the typical propagation delay of the ISO7742-Q1 at 5V supplies?
The typical propagation delay of the ISO7742-Q1 at 5V supplies is 10.7ns).
- Is the ISO7742-Q1 suitable for high electromagnetic interference environments?
Yes, the ISO7742-Q1 provides high electromagnetic immunity and low emissions, making it suitable for environments with high electromagnetic interference).
