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Hi TI Experts,
I had originally posted my question in the isolators forum, but was asked by TI Experts to try to re-post here to see if TI has any recommended load/signal switches for limiting current to a isolator device in the event of a fault, so that Safety Limiting Values of the isolator can be met while minimizing signal integrity degradation.
I think he was implying that a load switch could possibly help eliminate/reduce the size of the series current limiting resistor required to meet isolator "Safety Limiting Values" and thus help with maintaining SI and line termination.
Does TI have any recommendations for such an application where I need to balance meeting Safety Limiting Values to maintain integrity of the insulation barrier and also line termination for SI?
I had previously found a device that might be suitable, but it's from ADI.
https://www.analog.com/en/products/adg7421f.html
Does TI have similar devices that are more meant for digital signals or other recommended solutions?
Your assistance is greatly appreciated.
Hello USO,
I looked at the ADI device and it seems we have a TI cross for it. The TMUX7412F: https://www.ti.com/lit/ds/symlink/tmux7412f.pdf?ts=1698259813561&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTMUX7412F
It is a fault protection switch which can pass both analog and digital signals, but it is not p2p to the ADI device.
Please let me know if you have anymore questions or concerns.
Thanks,
Nir