14
Circuit Protection for High-Speed Serial Interfaces
LEARN MORE
Littelfuse SPHV
& SPHV-C TVS
Diodes
II
II contains the USB 2.0 lines. USB 2.0 lines are fast at
480 Mbps, but not quite as fast as the super speed lines.
The SP3530 is extremely small and has the appropriately
low capacitance.
I
USB has a long history of requiring over-temperature
protection. A fault is created when a foreign substance
such as dust, dirt, or another material creates a resistive
short from the power line to ground. Traditionally,
protection would have been provided using a PPTC
placed on the power line. However, due the higher
power capability of USB-C, a PPTC on V
bus
is impractical.
Littelfuse has developed a new method using setP digital
temperature indicators. The setP device is placed on the
CC line where it leverages the USB-C protocols to initiate
a power shut-down when it (setP) senses heat. ■
Figure 4: Circuit protection solutions for USB Type 2.0 (Source: Littelfuse)
"
"
USB 2.0 lines run at about
480Mbps, not quite as fast as the
super speed lines but still need
a moderate level of protection in
terms of how fast they react.
LEARN MORE
Littelfuse SP3213
0.09pF 12kV
Bidirectional TVS
Diode Arrays
LEARN MORE
Littelfuse SP3530
Unidirectional
Automotive TVS Diodes
LEARN MORE
Littelfuse SP1006
Unidirectional Discrete
TVS Diode Array
LEARN MORE
Littelfuse Low
Rho SMD PTC for
Charging Cables
