TVS diode

[Vcky_electro]

Hi,
Im using two Type-C connector in my board. ONe is for data + power and another one is for only power. Do i use TVS diode for both connector ?  or one TVS diode is enough for both connector.

(Note: Both connector power is Vbus=5V)

Please let me know if anyone knew..

Thanks,
Vicky.

[piguy101]

Not exactly sure what you are talking about, but it is often good practice to include a TVS diode on every single signal wire (and power wire) coming into a device when transients are possible. You never know which pin could have a nasty spike on it for some reason.

[Lt_Flash]

Hi,
Im using two Type-C connector in my board. ONe is for data + power and another one is for only power. Do i use TVS diode for both connector ?  or one TVS diode is enough for both connector.

(Note: Both connector power is Vbus=5V)

Please let me know if anyone knew..

Thanks,
Vicky.

You put one TVS diode per each line. Usually there are TVS diodes in a pack for USB - they have 2 TVS diodes and 1 Zener diode, for example - prtr5v0u2x. This one has a Zener diode to clamp voltage and two TVS diodes for anti-static protection. If you're using something like uni-directional TVS diode Vishay SMP13A-M3/84A - you put each of them on protected line. If you're using multiple connectors - you put one TVS pack for each connector, see example here:

https://static5.arrow.com/pdfs/2014/6/5/0/43/53/634/mcp_/manual/328evb-usb2514b-fs_a12020evaluation20board20schematic20pdf.pdf