Network ESD protection portfolio for commercial vehicle applications

14-03-2023 | Nexperia | Power

Nexperia has released an AEC-Q101 qualified portfolio with six ESD protection devices (PESD2CANFD36XX-Q) created to protect bus lines in automotive IVN such as LIN, CAN, CAN-FD, FlexRay and SENT from damage created by ESD and other transients. As data rates grow and vehicles feature more electrification, the requirement for ESD protection is becoming ever more crucial. Supplying the correct protection for automotive modules is a constant challenge for design engineers.

In contrast to the battery voltage seen in cars and smaller vehicles, 24V board nets are commonly used in trucks and commercial vehicles. ESD protection devices with operating voltages typically over 32V are needed to safeguard sensitive signal lines in 24V board nets. Satisfying these needs, the company has created this portfolio to offer a maximum reverse standoff voltage of 36V and up to 22kV ESD protection. This performance is combined with a low clamping voltage of VCL= 48V at IPP = 1A to deliver the best-in-class system-level robustness for IVN.

Keeping the specifications of IVNs and the simplicity of design in mind, the company offers this portfolio in SOT23 and SOT323 packages with three different ultra-low capacitance classes of 4.3pF, 6pF and 10pF, which help ensure smooth communication between interfaces with no impact on signal integrity. This combination maximises flexibility in PCB design and provides a number of performance options for design engineers.

By Seb Springall