The ESDCAN24-2BLY is a dual-line Transient Voltage Suppressor (TVS) designed specifically for automotive applications, providing robust protection for both CAN H and CAN L signals in Controller Area Network (CAN) physical layers. This device is engineered to shield automotive CAN PHY against ISO 7637-3 transients and electrostatic discharge (ESD), ensuring reliable communication in vehicular systems.
This TVS device stands out for its low clamping voltage, offering effective protection without compromising the signal integrity of CAN bus, LIN bus, and even high-speed buses like CAN-FD and FlexRay. Its design is optimized for low line capacitance, making it suitable for future technologies such as CAN XL, in addition to current applications.
TVS (Transient Voltage Suppressor)
Transient Voltage Suppressors (TVS) are critical components used to protect electronic circuits from voltage spikes and surges, typically caused by lightning strikes, electrostatic discharge (ESD), and other transient voltage events. They work by clamping the excess voltage to a safe level that the circuit can withstand, thus preventing damage to sensitive components.
TVS devices are widely used in various applications, including automotive systems, consumer electronics, industrial controls, and telecommunications. When selecting a TVS for a specific application, it is important to consider parameters such as the breakdown voltage, clamping voltage, peak pulse current, and power dissipation. The choice of TVS depends on the voltage levels in the circuit, the nature of the transient threats, and the specific requirements of the application.
For automotive applications, especially in CAN bus systems, TVS devices must meet stringent standards for reliability and performance under harsh conditions. Factors such as low clamping voltage, high peak pulse current capability, and compliance with automotive standards (e.g., AEC-Q101) are critical. Additionally, the device's capacitance should be low enough to not interfere with the high-speed data communication of the bus system.
In summary, selecting the right TVS involves a careful analysis of the electrical and thermal characteristics of the device, as well as an understanding of the application's specific needs. The ESDCAN24-2BLY, with its automotive-grade performance and compatibility with high-speed bus technologies, represents a robust solution for protecting automotive communication systems against transient voltages.