Hi Jacob,
Thanks for reaching out.
If the ±80V requirement is for transients that last a few 10s of µs or less than the best way to protect against such transients is to use TVS diodes. The TVS diodes work very well to clamp transients to the clamping…
Hi wenhao song , The ISO1050 device might be able to withstand 87V for 20ns however 3kA lightning current is a bit too high for the device. You have to use necessary protection components to achieve bus protection. Please go through the TIDA-00629 reference…
Hi Muhammad,
Based on your description and the waveforms you provided from your testing, it seems like the CAN driver has been partially damaged and is no longer capable of driving a dominant (logic 0) state. Because this damage occured in the field,…
Hi Howard:
Thanks for posting your question on E2E.
The small jump in the CANH-CANL waveform appears to be due to a reflection. In order to identify the source of reflection, I'd recommend removing the following components one at a time and measure…
Hi Ann,
Thanks for reaching out. Both the common-mode choke and CAN bus capacitors (both common-mode and differential capacitors) are meant for EMI noise filtering. They are effective for reducing emissions from device and also for suppressing external…
Hi Brian,
Thanks for reaching out. Like most isolated CAN transceivers, ISO1050 doesn't require many external components for it to be interfaced to a CAN network with multiple nodes. All it requires is the recommended decoupling capacitors on its input…
Hi Mauro,
Welcome to TI E2E forum!!
Thank you for your interest in ISO1044 and for going through many technical documents to understand TI isolation technology and the devices. Appreciate your interest and efforts for learning.
Regarding your questions…
Hi MAX,
I have additional questions about TIDA-00629.
① IEC61000-4-5
IEC Table 6 of Page.13 shows that IEC SURGE(KV) of TVS only is ±2kV.
However Table13 of Page.21 shows that the result of TVS only (±2kV) shows fail.
…