Overview
The ISO1640BQDRQ1, produced by Texas Instruments, is a robust and highly reliable automotive-grade, hot-swappable bidirectional I2C isolator. This device is designed to provide isolated communication between two I2C buses, ensuring high electromagnetic compatibility (EMC) and safety in various applications. It is AEC-Q100 qualified and compliant with VDA320, making it suitable for demanding automotive environments. The ISO1640BQDRQ1 operates over a wide temperature range of -40°C to +125°C and supports bidirectional data transfer up to 1.7 MHz.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Side 1) | 3.0 to 5.5 | V |
| Supply Voltage (Side 2) | 2.25 to 5.5 | V |
| Operating Frequency | Up to 1.7 | MHz |
| Isolation Rating | Up to 5000 VRMS (DW-16), Up to 3000 VRMS (D-8) | VRMS |
| Surge Isolation Voltage | Up to 10 kV | V |
| ESD Protection | ±8 kV IEC-ESD 61000-4-2 contact discharge | |
| Capacitive Load (Side 1) | 80 pF | pF |
| Capacitive Load (Side 2) | 400 pF | pF |
| Output Current (Side 1) | 0.5 to 3.5 mA | mA |
| Output Current (Side 2) | 0.5 to 50 mA | mA |
| Operating Temperature | -40°C to +125°C | °C |
| Package Options | 8-SOIC (D-8), 16-SOIC (DW-16) |
Key Features
- Robust isolated bidirectional I2C communication with hot-swappable capability.
- High EMC performance with >100-year projected lifetime at specified working voltages.
- Up to 10 kV reinforced surge capability and ±8 kV IEC-ESD protection.
- Open-drain outputs with current-sink capability.
- AEC-Q100 qualified and VDA320 compliant.
- Wide operating temperature range of -40°C to +125°C.
- Certified by UL, VDE, CSA, TUV, and CQC for safety-related applications.
Applications
- Electric and Hybrid-Electric Vehicles.
- Isolated I2C Buses.
- SMBus and PMBus Interfaces.
- Power Over Ethernet (PoE).
- Motor Control Systems.
- Battery Management Systems.
Q & A
- What is the ISO1640BQDRQ1 used for? The ISO1640BQDRQ1 is used for isolated bidirectional I2C communication in various applications, including automotive, industrial, and medical devices.
- What are the key certifications of the ISO1640BQDRQ1? The device is AEC-Q100 qualified, VDA320 compliant, and certified by UL, VDE, CSA, TUV, and CQC.
- What is the operating temperature range of the ISO1640BQDRQ1? The operating temperature range is -40°C to +125°C.
- What are the package options for the ISO1640BQDRQ1? The device is available in 8-SOIC (D-8) and 16-SOIC (DW-16) packages.
- What is the maximum operating frequency of the ISO1640BQDRQ1? The maximum operating frequency is up to 1.7 MHz.
- What kind of ESD protection does the ISO1640BQDRQ1 offer? The device offers ±8 kV IEC-ESD 61000-4-2 contact discharge protection.
- What are the typical applications of the ISO1640BQDRQ1? Typical applications include electric and hybrid-electric vehicles, isolated I2C buses, SMBus and PMBus interfaces, Power Over Ethernet (PoE), motor control systems, and battery management systems.
- What is the isolation rating of the ISO1640BQDRQ1? The isolation rating is up to 5000 VRMS for the DW-16 package and up to 3000 VRMS for the D-8 package.
- Does the ISO1640BQDRQ1 support hot-swapping? Yes, the device supports hot-swapping of SDA and SCL lines.
- What is the common-mode transient immunity (CMTI) of the ISO1640BQDRQ1? The CMTI is typically 50 to 100 kV/μs.
