Is the ESDCAN compatible with FlexRay?Yes, it is compatible with Flexray for ESDCAN02 and 03. And even more, as the line capacitance is lower than 3.5 pF it will be compatible with the next generation of CAN like CANXL.
Why do you qualify ESDCAN up to 175°C ? Is it an ambient temperature in car/commercial vehicle? Usually the ambient temperature close to the engine is about 125°C but in some specific cases (like gearbox for example) we may have a maximum ambient t...
Are ST ESDCAN protections part of car makers’ approval list?Some car makers require CAN protection devices to be part of their own approval list. Are ST ESDCAN protection part of car makers’ approval list? Yes, we are part of Car makers approval list...
Are other components of CAN datalines, like termination resistors or capacitors, robust enough versus ESD?Yes these discrete components are also vulnerable to ESD and their value or lifetime can be impacted by repetitive ESD surges. But as the CAN p...
Why is 120ohm termination for low-speed CAN not necessary?For low-speed, a termination series at each node is necessary. The value of these resistors are fixed by the number of nodes. The termination resistor value fixes the voltage levels values.Fo...
Are ESDCAN protections compatible with load dump surges?Are ESDCAN protections compatible with load dump surges? No, if peak load dump voltage is higher than ESDCAN breakdown voltage (VBR)Yes, if peak load dump voltage is lower than ESDCAN breakdown...
CAN protocol is differential. What about the matching between the two lines?We specify the Delta C_line on all the ESDCAN datasheet and it is very low. For example for ESDCAN03-2BM3Y (last CAN generation in DFN) the delta capa is 10 fF typical 50 fF ...
Why have ST CAN protection devices such low capacitance that CAN datarate is not so fast?Yes, the bandwidth of ESDCAN is more than enough to address highest speed CAN.The idea is to save as much as possible the capacitance budget of the total CAN lin...
Why do you need to apply jump start on CAN datalines?Because the automotive industry considers that applying the ISO 16750 stanrdards on CAN_H and CAN_L lines is relevant. It means that the following double event may happen : Wrong battery voltageS...
How to design ESD protection for sensitive ICs?0. Summary This article answers some Frequently Asked Questions about ESD protection of sensitive ICs. 1. Are there other types of ESD protection without using TVS? Other type of ESD protection can be:...
How to choose the right ESD protection for my design?0. Summary This article answers some Frequently Asked Questions about ESD protection electrical characteristics. 1. How to select the VCL? (what is the maximum transient voltage accepted by mycir...
When ESD protection is not needed?0. Summary This article answers some Frequently Asked Questions about design examples that do not require ESD protection. 1. Is it really necessary to provide external ESD protection in case of no ESDprotection for...
How do you measure ESD signals?0. Summary This article answers some Frequently Asked Questions about how to measure an ESD signal and qualify the efficiency of the protection. 1. How do you measure ESD signals? Do you use scopes? We use a high band...
How to design ESD protection of sensitive devices?0. SummaryThis article answers some Frequently Asked Questions about ESD protection of sensitive devices. 1. What would you recommend for clothing when handling ESD sensitivedevices?In an ESD-controll...
What is ESD protection?0. Summary This article answers some Frequently Asked Questions about ESD and how to create an ESD safe design. 1. What is ESD protection? ESD stands for electrostatic discharge. ESD is defined by the ESD association as "the ...