The SN65220 device is a dual, and the SN65240 and SN75240 devices are quadruple, unidirectional transient voltage suppressors (TVS). These devices provide electrical noise transient protection to Universal Serial Bus (USB) low and full-speed ports. The input capacitance of 35 pF 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 SN65220, SN65240, and SN75240 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.
|Number of Channels (#)|
|IO Capacitance (Typ) (pF)|
|Breakdown Voltage (Min) (V)|
|IEC 61000-4-2 Contact (+/- kV)|
|IEC 61000-4-2 Air-Gap (+/- kV)|
|IO Leakage Current (Max) (nA)|
|Operating Temperature Range (C)|
|IEC 61000-4-5 (Surge) (Max) (A)|
|IEC 61000-4-5 (Surge) (Max) (W)|
|Dynamic Resistance (Typ) (Ω)|
|IEC 61000-4-4 EFT (Max) (A)|
|Vin (Max) (V)|
|-40 to 85|
|Automotive||SN65220-Q1||Q100 devices qualified for high-reliability automotive applications targeting zero defects|