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) |
| Vrwm (V) |
| IEC 61000-4-2 contact (+/- kV) |
| IEC 61000-4-5 (A) |
| Features |
| Bi-/uni-directional |
| IO leakage current (Max) (nA) |
| Rating |
| Operating temperature range (C) |
| Package Group |
| Package size: mm2:W x L (PKG) |
| Dynamic resistance (Typ) (Ω) |
| SN65220 |
|---|
| 2 |
| 35 |
| 6 |
|
|
| 3 |
|
|
| Uni-Directional |
| 1000 |
| Catalog |
| -40 to 85 |
| SOT-23 | 6 |
| 6SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 6) |
|
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