Hi,
I want you to confirm whether this device can clamp "Vcc+Vf" at any conditon or not.
According to datasheet of TPD4E004, there is following description in section 8.2.2.
5. The V CC pin can be connected in two different ways:
(a) If the V CC pin is connected to the system power supply, the TPD4E004 works as a transient suppressor
for any signal swing above V CC + V F . A 0.1-μF capacitor on the device V CC pin is recommended for ESD
bypass.
I understood when user connect "Vcc" pin to power supply, clamp voltage will be "Vcc+Vf" at any condition (Ex IEC 61000-4-2 +8kV contact).
Could you please confirm whether my understanding is correct or not ?
If my understanding is not correct, could you please tell me whether there is ESD protection device which can clamp fixed voltage at any condtion or not ?
Best Regards,
Machida