Why is the bidirectional configuration chosen? The voltage is never meant to be negative on USB bus, thus wouldn't a negative voltage break the device?
You are not in control of the ESD voltage coming from the outside (wool carpet discharged to the connector can be negative or positive referred to GND).
@@PszemoI Yeah but a unidirectional diode would clamp to -Vforward instead of the bidirectional voltage rating, which is better. There is no "flexibility" provided by bi-directional diodes as stated in this video
Excellent, more video for protection please.
Can we use them on analog pin??
Why is the bidirectional configuration chosen? The voltage is never meant to be negative on USB bus, thus wouldn't a negative voltage break the device?
You are not in control of the ESD voltage coming from the outside (wool carpet discharged to the connector can be negative or positive referred to GND).
@@PszemoI Yeah but a unidirectional diode would clamp to -Vforward instead of the bidirectional voltage rating, which is better. There is no "flexibility" provided by bi-directional diodes as stated in this video
@@MCSGproject The flexibility referred to here is in regards to connecting any pin to the bus and any pin to ground for a single channel diode.
@@Matt-pd9jo what do you mean?