The SN65240PW is a Dual Universal Serial Bus Port Transient Suppressor provides electrical noise transient protection to universal serial bus (USB) low and full-speed ports. The input capacitance of 35pF makes it unsuitable for high-speed USB 2.0 applications. Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the USB transceiver and/or the USB ASIC if they are of sufficient magnitude and duration. The ESD performance of the devices is measured at the system level, according to IEC61000-4-2. However, system design impacts the results of these tests. To accomplish a high compliance level requires careful board design and layout techniques.
Circuits from noise transients
Port ESD protection capability exceeds 15kV human body model
Port ESD protection capability exceeds 2kV machine model