Overview
The ISO6740FQDWRQ1 is a high-performance, quad-channel digital isolator produced by Texas Instruments. This device is designed for cost-sensitive applications that require robust isolation and high electromagnetic immunity. It is part of the ISO674x-Q1 family, which includes the ISO6740-Q1, ISO6741-Q1, and ISO6742-Q1 models. The ISO6740FQDWRQ1 is AEC-Q100 qualified and meets various safety and isolation standards, including VDA320 and UL 1577. It operates over a wide temperature range of -40°C to 125°C and is packaged in a 16-pin SOIC wide-body (DW) package.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | SOIC (DW) | 16 pins |
| Operating Temperature Range | -40°C to 125°C | |
| Data Rate | Maximum data rate | 50 Mbps |
| Isolation Rating | Maximum isolation voltage | Up to 5000 VRMS |
| Surge Capability | Maximum surge voltage | Up to 10 kV |
| CMTI | Common-mode transient immunity | ±150 kV/μs typical |
| Supply Voltage Range | VCC1 and VCC2 supply voltage range | 1.71V to 1.89V and 2.25V to 5.5V |
| Propagation Delay | Typical propagation delay | 11 ns |
| ESD Protection | IEC 61000-4-2 contact discharge protection | ±8 kV |
Key Features
- Functional Safety-Capable: Documentation available to aid functional safety system design.
- AEC-Q100 Qualified: Device temperature Grade 1: –40°C to 125°C ambient operating temperature range.
- Robust Isolation Barrier: High lifetime at 1500 VRMS working voltage, up to 5000 VRMS isolation rating, and up to 10 kV surge capability.
- Wide Supply Range: 1.71V to 1.89V and 2.25V to 5.5V, with 1.71V to 5.5V level translation.
- Low Power Consumption: 1.6 mA per channel typical at 1 Mbps.
- Low Propagation Delay: 11 ns typical.
- Robust EMC: System-level ESD, EFT, and surge immunity, with low emissions.
- Safety-Related Certifications: DIN EN IEC 60747-17 (VDE 0884-17), UL 1577 component recognition program, IEC 62368-1, IEC 61010-1, IEC 60601-1, and GB 4943.1.
Applications
- Hybrid, Electric, and Power Train Systems (EV/HEV): Battery management system (BMS), on-board charger, DC/DC converter, inverter, and motor control.
- Automotive Systems: Used in conjunction with isolated power supplies to prevent noise currents on data buses such as CAN and LIN from damaging sensitive circuitry.
Q & A
- What is the ISO6740FQDWRQ1 used for?
The ISO6740FQDWRQ1 is a quad-channel digital isolator used in applications requiring high isolation and electromagnetic immunity, such as in automotive, hybrid, and electric vehicle systems.
- What is the maximum data rate of the ISO6740FQDWRQ1?
The maximum data rate of the ISO6740FQDWRQ1 is 50 Mbps.
- What is the isolation rating of the ISO6740FQDWRQ1?
The ISO6740FQDWRQ1 has an isolation rating of up to 5000 VRMS.
- What is the operating temperature range of the ISO6740FQDWRQ1?
The operating temperature range is -40°C to 125°C.
- What certifications does the ISO6740FQDWRQ1 hold?
The device is AEC-Q100 qualified and holds certifications such as DIN EN IEC 60747-17, UL 1577, IEC 62368-1, IEC 61010-1, IEC 60601-1, and GB 4943.1.
- What is the typical propagation delay of the ISO6740FQDWRQ1?
The typical propagation delay is 11 ns.
- How does the ISO6740FQDWRQ1 protect against ESD and surges?
The device offers system-level ESD, EFT, and surge immunity, with ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- What is the power consumption of the ISO6740FQDWRQ1 per channel?
The typical power consumption is 1.6 mA per channel at 1 Mbps.
- What package type does the ISO6740FQDWRQ1 come in?
The device is packaged in a 16-pin SOIC wide-body (DW) package.
- Can the ISO6740FQDWRQ1 be used in safety-critical applications?
Yes, the ISO6740FQDWRQ1 is functional safety-capable and provides documentation to aid in functional safety system design.
