I have USB 2.0 full speed device whose data and power (VBUS) lines I am trying to protect from ESD. This device is going to be housed in a plastic housing. I am thinking of using TPDXXXX series to protect data (D+ and D-) and Power (VBUS) lines of USB from ESD events. Where should I connect the GND of the ESD protection device? to the PIN-4 (GND) of the USB connector or to the metal shield of the connector? he device is USB and connected to the host with a 2 meter USB cable.
Please connect GND of the TPDxxxxx to GND of pin-4 of USB connector. If possible, please connect it to the metal shielding as well.
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