USB Port Transient Suppressors
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SLLS266I – FEBSSRNNU66AR55Y222210099,,7SS–NNR66E55V22IS44E00D,, ASSPNNR77IL552220442001
SLLS266I – FEBRUARY ...
Description
www.ti.com
SLLS266I – FEBSSRNNU66AR55Y222210099,,7SS–NNR66E55V22IS44E00D,, ASSPNNR77IL552220442001
SLLS266I – FEBRUARY 1997 – REVISED APRIL 2021
SNx52x0 USB Port Transient Suppressors
1 Features
Design to protect submicron 3-V or 5-V circuits from noise transients
Port ESD protection capability exceeds: – 15-kV human body model – 2-kV machine model
Available in a WCSP chip-scale package Stand-off voltage: 6 V (minimum) Low current leakage: 1-µA maximum at 6 V Low capacitance: 35-pF (typical)
2 Applications
USB full-speed host, HUB, or peripheral Ports
USB Transceiver
27 D+
A
15 k GND
SN65220 or ½ SNx5240
15 k
B
D-
27
Simplified Schematic
3 Description
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 or the USB ASIC if they are of sufficient magnitude and duration.
The SN65220, SN65240, and SN75240 devices ESD performance is measured at the system level, according to IEC61000-4-2; system design, however, impacts the results of these tests. To accomplish a high compliance level requires careful board design and layout t...
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