Other Parts Discussed in Thread: TPS2121, TIOS102
Hi,
I'm planning on using a TPS2116 in my design to select a system voltage between one of two sources:
1) 5VDC from the output of an AC-DC PSU.
2) 5VDC, directly from a USB-C input.
I'm looking to add some ESD protection diodes to the inputs as per IEC 61000-4-2, but I'm uncertain whether adding an ESD diode on these lines will be sufficient to protect the TPS2116?
The absolute max limit in the datasheet for VIN1 and VIN2 is stated as 6V, however after watching your (excellent!) video "1.6 ESD Essentials: How to Select ESD Protection", it advises that:
"Keep in mind, TLP failure voltage of a device is not the same as the absolute maximum voltage rating of the device. Absolute maximum voltage is a DC voltage, while TLP is a 100-nanosecond transient. I would also like to note that finding the required clamping voltage of a system is not always easy."
Do you have information relating to the TLP failure voltage for the TPS2116? Is it possible to protect the inputs as per IEC 61000-4-2, or should I move to use the TPS2121?
Thank you!