Other Parts Discussed in Thread: THVD1449,
Hello, is this device robust enough to be used without external TVS diodes protection? If not can you recommend an alternate device
thanks
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This device has protection against ± 4-kV IEC 61000-4-5 1.2/50-μs surges (and this is the strongest protection that is integrated in a transceiver). If you need stronger protection, you have to add external TVS diodes.
Yes.
The ST485EC is designed for 5 Mbps. The THVD1439 is designed for 0.25 Mbps and has a lower slew rate to reduce EMI. If you actually need more than 0.25 Mbps, use the THVD1449 instead.
Hi Allen,
Clemens is correct - the THVD1449 is the faster version (if you need a faster version of the device) and our best suited match.
Please let me know if you have any other questions and I will see what I can do!
Best,
Parker Dodson